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Tikvah's Garden WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here
Tikvah's Garden site (meet at the Fishery Science Building - FSB)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Thursday, June 5, 2025, 11:00 AM – 12:30 PM.
SER Site: Tikvah's Garden
Meeting Location: Fishery Science Building (FSB).
For more info visit sites.uw.edu. Beatriz Oliva | MS Thesis Final Defense
Title: Physiological Constraints of Assisted Migration of Coast Redwoods (Sequoia Sempervirens) to Washington’s Western Cascade Region
Committee Members:
Greg Ettl, Chair, UW SEFS
Soo-Hyung Kim, Member, UW SEFS
Keith Jayawickrama, Member, OSU COF
Abstract:
There is broad interest in moving the iconic Sequoia sempervirens (D. Don) Endl. to
western Washington to assist in the climate pressured species’ habitat shift northward as well as
provide cultural, ecological, carbon, and timber value. This research investigates the
ecophysiological constraints of young redwoods in comparison with native species, Pseudotsuga
menziesii (Mirb.) Franco and Thuja plicata (Donn.) through testing of S. sempervirens cultivars
under controlled greenhouse drought conditions and across a soil moisture gradient in a field study
outside of its native range. In the drought trial, measurement of photosynthetic capacity (F v /F m ) as a
stress metric, water potential, growth investments and survival show that S. sempervirens had
si…
Contact: boliva95@uw.edu. Accessibility Contact: sefsmain@uw.edu.
Thursday, June 5, 2025, 11:30 AM – 12:30 PM.
WFS 021 or via Zoom
Zoom link - https://washington.zoom.us/j/91269970157.
For more info visit washington.zoom.us. Free 1st Thursday Public Tour
UW Botanic Gardens is committed to enriching the lives of all community members with free public tours. Please note our tours are for individual participants not organized groups. If you wish to have a group tour, please explore your options at botanicgardens.uw.edu. To ensure a positive tour experience and the safety of our visitors, our tours are now capped at 50 attendees on a first come first serve basis.
Our 1st Thursday public tours are casual walks through various areas of the 230 acre Washington Park Arboretum. Walks feature seasonal themes, collections plants, explorations of botany, and the history of our organization.
Our June tour will feature our Pacific Connections Garden, displaying cultivars and native plants from our region as well as Chile, China, New Zealand and Australia.
Because this garden is at the south end of the Arboretum, the tour will be starting at the Japanese Garden Parking lot. Docents will be there to greet and gather visitors and guide them across the street and…
Event interval: Single day event. Accessibility Contact: cmn23@uw.edu. Event Types: Information Sessions. Age Range: Teens. Adults. Presenter: UW Botanic Garden Tour Docents. Contact Information: Catherine Nelson at cmn23@uw.edu.
Thursday, June 5, 2025, 11:30 AM – 1:00 PM.
Washington Park Arboretum
Graham Visitors Center
2300 Arboretum Dr E, Seattle.
For more info visit botanicgardens.uw.edu. Burke Gilman WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Burke-Gilman site (meet at the path to Pacific Pl)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Thursday, June 5, 2025, 3:30 PM – 5:30 PM.
SER Site: Burke Gilman
Meeting Location: path to Pacific Place.
For more info visit sites.uw.edu. 25th Anniversary Capstone in Ecological Restoration Symposium - you're invited!
We are pleased to invite you to celebrate the accomplishments of the students in the Ecological Restoration Capstone. The multidisciplinary teams of students from the Seattle campus have been working for 9 months to restore damaged ecosystems for community-based partners in the Puget Sound area.
Join us to celebrate the completion of their projects and examine the innovative, science-based approaches developed and used by our students. The projects are part of an award-winning capstone program that has involved 1009 students, more than 51 community partners and 184 restoration projects over the past 25 years.
RSVP is not required. If you have any questions, please contact the symposium coordinator at sdada2@uw.edu
For driving directions and transportation options see: https://botanicgardens.uw.edu/center-for-urban-horticulture/visit/getting-here.
Contact: sdada2@uw.edu. Accessibility Contact: sefsevents@uw.edu.
Thursday, June 5, 2025, 6:00 PM – 8:00 PM.
Douglas Conservatory, Center for Urban Horticulture
3501 NE 41st Street
Seattle, WA 98105.
For more info visit botanicgardens.uw.edu. Miranda Smith | MS Thesis Research Proposal Defense
Title: Blue Carbon Fertilizer: The Effects of the Salt Content of Ulva Seaweed Soil Amendment on Crop Growth and Health
Committee Members:
Brittany Johnson, UW SEFS
Sarah Collier, Co-Chair, UW Environmental and Occupational Health Sciences
Soo-Hyung Kim, Co-Chair, UW SEFS
Eli Wheat, UW Program on the Environment
Abstract:
Utilization of Ulva seaweed as a crop fertilizer has the potential to remove carbon
and nutrients from marine ecosystems, where they cause harm, and instead recycle
them into terrestrial farms where the nutrients can benefit crop production and
sequester carbon in the soil to mitigate climate change. While seaweed, in the form of
extracts, compost, fertilizer and mulch, have been used in agriculture for millenia, there
are still unknowns regarding how unprocessed seaweed will affect soil and plants. Ulva
possesses many macro and micronutrients that are essential for plant growth,
biostimulant compounds that promote growth, and physical properties that improve the
quality of soil for agric…
Contact: mls52@uw.edu. Accessibility Contact: sefsmain@uw.edu.
Friday, June 6, 2025, 11:00 AM – 12:00 PM.
WFS 021 or via Zoom
Zoom link - https://washington.zoom.us/j/98310603878.
For more info visit washington.zoom.us. Yesler Swamp WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Yesler Swamp site (meet at the CUH toolshed)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Saturday, June 7, 2025, 11:00 AM – 12:30 PM.
SER site: Yesler Swamp
Meeting Location: Center for Urban Horticulture (CUH) toolshed.
Heron Haven WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Heron Haven site (meet in the grassy area)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Sunday, June 8, 2025, 12:00 PM – 2:00 PM.
SER site: Heron Haven
Meeting Location: grassy area.
Alec Solemslie | PhD General Exam Research Proposal Defense
Title: Understanding Non-Timber Forest Products in the Pacific Northwest - Economic Conditions and Climate Change
Committee Members:
Kent Wheiler, Chair, UW SEFS
Gregory Ettl, Member, UW SEFS
Sergey Rabotyagov, Member, UW SEFS
Clare Ryan, Member, UW SEFS
Kate Simonen, Interim GSR, UW Architecture
Isabelle Cohen, GSR (On-Leave), UW Evans School
Abstract:
Non-timber forest products have long contributed to the cultural identity and rural
economies of the Pacific Northwest. Although their economic significance has declined
with regional development, non-timber forest products continue to play an important role
in rural economies, generating millions of dollars for these communities. This proposal
outlines a series of studies investigating the economic structure, market dynamics, and
future viability of the industry under a shifting climate. An interview protocol will capture
the perspectives of industry members and other market agents on the current conditions
and anticipated future of the industry. Economic…
Contact: solema@uw.edu. Accessibility Contact: sefsmain@uw.edu.
Monday, June 9, 2025, 9:45 AM – 11:45 AM.
Condon 110B or via Zoom
Zoom link - https://washington.zoom.us/j/98599586941.
For more info visit washington.zoom.us. SEFS Faculty Meeting (11:30am - 12:30pm)
Contact: Mary Keyes: mkeyes2@uw.edu. Accessibility Contact: Mary Keyes: mkeyes2@uw.edu.
Tuesday, June 10, 2025, 11:30 AM – 12:30 PM.
Winkenwerder 105.
Fletcher Moore | MS Thesis Research Proposal Defense
Title: Forest Structure and Habitat Relationships on Tinian Island: Implications for Conservation and Land Management
Committee Members:
Jon Bakker, Chair, UW SEFS
Beth Gardner, Member, UW SEFS
Abstract:
Despite the ecological value for threatened and sensitive endemic species on Tinian
Island, managers lack a comprehensive understanding of the island’s plant community and its use
by wildlife. My project will address this through two objectives. First, I will quantify and model
vegetation characteristics across the island by integrating extensive ground-based vegetation
surveys with remote sensing data. This will produce fine-scale habitat classifications that more
accurately reflect native and invasive species presence and habitat quality, where current
landcover maps likely underestimate ecological value. Second, I will examine how forest
structure and plant community influences territory size and reproductive success of an endemic
songbird, the Tinian Monarch (Monarcha takatsukasae). Using radio telemet…
Contact: moorefj@uw.edu. Accessibility Contact: sefsevents@uw.edu.
Wednesday, June 11, 2025, 2:00 PM – 3:00 PM.
Zoom - https://washington.zoom.us/s/2062213864.
For more info visit washington.zoom.us. Botanical Relief Block Printing (in-person)
Class Cost: $80, advanced registration required
Financial aid slots available on a first-come, first-served basis
REGISTER ONLINE
In this class, students will be introduced to the process of relief printing using a technique known as linocut. Using botanical motifs, students will learn the basics of relief design, block cutting and inking, and hand printing techniques. Each student will leave with a series of their own hand printed cards and a block printing supply starter kit to continue printing at home!
Location: Douglas Headhouse, Center for Urban Horticulture, Anneke Wilder is an artist and illustrator based in Seattle, WA. Anneke received degrees in Biology and Studio Art, as well as a certificate in Natural Science Illustration from UW. She’s participated in numerous artist residencies at the nexus of art and science and is a contributor to Hyldyr, a publication company that combines art, ecology, and folklore. She draws on her background in the sciences to create detailed watercolors that deal with…
Event interval: Single day event. Campus location: Center for Urban Horticulture. Campus room: Douglas Headhouse. Accessibility Contact: urbhort@uw.edu. Presenter: Anneke Wilder. Contact Information: annekewilder@gmail.com. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_431cfa3ea96d.
Wednesday, June 11, 2025, 4:00 PM – 7:00 PM.
For more info visit apps.ideal-logic.com. Tikvah's Garden WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here
Tikvah's Garden site (meet at the Fishery Science Building - FSB)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Thursday, June 12, 2025, 11:00 AM – 12:30 PM.
SER Site: Tikvah's Garden
Meeting Location: Fishery Science Building (FSB).
For more info visit sites.uw.edu. Yesler Swamp WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Yesler Swamp site (meet at the CUH toolshed)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Saturday, June 14, 2025, 11:00 AM – 12:30 PM.
SER site: Yesler Swamp
Meeting Location: Center for Urban Horticulture (CUH) toolshed.
Heron Haven WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Heron Haven site (meet in the grassy area)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Sunday, June 15, 2025, 12:00 PM – 2:00 PM.
SER site: Heron Haven
Meeting Location: grassy area.
Tikvah's Garden WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here
Tikvah's Garden site (meet at the Fishery Science Building - FSB)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Thursday, June 19, 2025, 11:00 AM – 12:30 PM.
SER Site: Tikvah's Garden
Meeting Location: Fishery Science Building (FSB).
For more info visit sites.uw.edu. Burke Gilman WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Burke-Gilman site (meet at the path to Pacific Pl)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Thursday, June 19, 2025, 3:30 PM – 5:30 PM.
SER Site: Burke Gilman
Meeting Location: path to Pacific Place.
For more info visit sites.uw.edu. Yesler Swamp WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Yesler Swamp site (meet at the CUH toolshed)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Saturday, June 21, 2025, 11:00 AM – 12:30 PM.
SER site: Yesler Swamp
Meeting Location: Center for Urban Horticulture (CUH) toolshed.
Urban Foraging: Weeds & Wild Foods (in-person)
Cost: $45
Financial aid slots available on a first-come, first-serve basis, REGISTER ONLINE
Participate in this 'weed walk' and learn how to identify and gather some of the most common edible weeds and wild foods available in your garden and in other disturbed areas. Many gardeners are already recognizing many of the benefits of these 'interlopers.' However, when it comes to serving them up in the kitchen, few of us have learned to take full advantage of these labor-free gifts. This hands-on workshop at Discovery Park includes discussion on gathering ethics, local rules and regulations, safety, and general information about how to cook with weeds. Attendees receive a handy take-home flier with field identification information and cooking tips.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Melany Vorass Herrera. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_604dea2b90b4.
Saturday, June 21, 2025, 1:00 PM – 4:00 PM.
Discovery Park, North Parking Lot.
For more info visit apps.ideal-logic.com. Heron Haven WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Heron Haven site (meet in the grassy area)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Sunday, June 22, 2025, 12:00 PM – 2:00 PM.
SER site: Heron Haven
Meeting Location: grassy area.
Tikvah's Garden WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here
Tikvah's Garden site (meet at the Fishery Science Building - FSB)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Thursday, June 26, 2025, 11:00 AM – 12:30 PM.
SER Site: Tikvah's Garden
Meeting Location: Fishery Science Building (FSB).
For more info visit sites.uw.edu. Forest Bathing (in-person)
Cost: $25
Advance registration required.
Join UW Botanic Gardens and Cascadia Forest Therapy for a unique forest bathing opportunity in the Washington Park Arboretum. Forest bathing (or shinrin-yoku) has been popular in Japan for decades and is gaining momentum in the US. The practice encourages you to move in nature at a slower pace and take in the atmosphere around you. Multiple scientific studies have shown that the practice lowers stress and blood pressure levels, while increasing immune system functioning, making you more resilient to diseases and illness.
During this class the guide, in partnership with the forest, will offer an evolving series of invitations crafted to help participants slow down and open their senses. The opening of one’s senses encourages mindfulness, which readies the heart and mind to be fully present in the natural world. Come discover the medicine of being in the forest.
Accessibility: These sessions are slow-paced and generally cover less than a mile of trail. Trails are not…
Event interval: Single day event. Campus location: Washington Park Arboretum (LNDMK-8). Accessibility Contact: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_4f6de53cfef1.
Saturday, June 28, 2025, 10:00 AM – 11:30 AM.
For more info visit apps.ideal-logic.com. Yesler Swamp WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Yesler Swamp site (meet at the CUH toolshed)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Saturday, June 28, 2025, 11:00 AM – 12:30 PM.
SER site: Yesler Swamp
Meeting Location: Center for Urban Horticulture (CUH) toolshed.
Heron Haven WORK PARTY - Society for Ecological Restoration (open to UW student body)
Do you like working outside and getting your hands dirty? Join us at our next work party!
Our mission is to bring together students at the University of Washington with a common interest in the science and practice of ecological restoration, and a common goal to restore and sustain the biodiversity of our beautiful campus.
Learn more about SER UW here
SER UW Site Map here, Heron Haven site (meet in the grassy area)
Bring water and dress for the weather!
Contact: seruw@uw.edu. Accessibility Contact: seruw@uw.edu.
Sunday, June 29, 2025, 12:00 PM – 2:00 PM.
SER site: Heron Haven
Meeting Location: grassy area.
Free 1st Thursday Public Tour
UW Botanic Gardens is committed to enriching the lives of all community members with free public tours. Please note our tours are for individual participants not organized groups. If you wish to have a group tour, please explore your options at botanicgardens.uw.edu. To ensure a positive tour experience and the safety of our visitors, our tours are now capped at 50 attendees on a first come first serve basis.
Our 1st Thursday public tours are casual walks through various areas of the 230 acre Washington Park Arboretum. Walks feature seasonal themes, collections plants, explorations of botany, and the history of our organization.
To join the walk, meet us at the Graham Visitors Center, docents will be there to greet and gather visitors.
We make every effort to tailor our tours to our audience and most months we are able to offer visitors a choice of a longer or shorter walk depending on their capabilities. If you have any specific requirements or mobility limitations we will do our best to accommoda…
Event interval: Single day event. Accessibility Contact: cmn23@uw.edu. Event Types: Information Sessions. Age Range: Teens. Adults. Presenter: UW Botanic Garden Tour Docents. Contact Information: Catherine Nelson at cmn23@uw.edu.
Thursday, July 3, 2025, 11:30 AM – 1:00 PM.
Washington Park Arboretum
Graham Visitors Center
2300 Arboretum Dr E, Seattle.
For more info visit botanicgardens.uw.edu. Sketching in Ink and Watercolor: Flowers and Gardens (in-person)
Series cost: $160
REGISTER ONLINE, Financial aid slots available on a first-come, first-served basis, This is a 3-class series taking place on each Tuesday from July 8th to July 22nd, each session running from 3:00pm-5:00pm.
Capture the beautiful summer flowers and gardens at the Center for Horticulture in ink and watercolor washes with quick techniques and portable materials! You will begin each session in the classroom with warm-up exercises and to discuss tips for working outdoors. Materials list will be provided upon registration. Most of the class will be held outside, so please dress for the weather. All levels welcome.
Instructor Lisa Snow Lady has a BFA in painting from the University of Washington, and a degree in Ornamental Horticulture from Edmonds Community College and has been sketching and painting for over 20 years. She has a passion for travel sketching and is a member of Urban Sketchers. Lisa loves to encourage students of all artistic levels.
Event interval: Ongoing event. Campus location: Center for Urban Horticulture. Accessibility Contact: urbhort@uw.edu. Presenter: Lisa Snow Lady. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_211f280769c2.
Tuesday, July 8, 2025, 3:00 PM – 5:00 PM.
For more info visit apps.ideal-logic.com. Master Pruner - Full Series (online)
Cost: $350 for current PlantAmnesty Members, $410 for non-members
Financial aid slots available on a first-come, first-served basis, Register online
Sign up for the whole Master Pruner Series at once and receive a series discount! This lecture series, offered twice annually in partnership with PlantAmnesty, is designed for those who work in landscape maintenance. Each lecture provides information on tools and techniques for quality pruning with better long-term results and customer satisfaction. The series runs every Thursday for 6 weeks, July 10th - August 14th 2025, with 2 lectures on each Thursday at 9:30am-11:30am and 12:30pm-2:30pm. Registration for the full series closes the first date of the series, July 10th, 2025; registration for individual classes will still be available.
The Master Pruner Full Series includes all 12 Master Pruner lectures as a bundle. Individually, each class is $35 for PlantAmnesty Members and $75 for non-members. Registering for the full series earns PlantAmnesty members 15%…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Christina Pfeiffer, Bess Bronstein, Keith Dekker, & Ingela Wanerstrand. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_df0fdbb4b7f5.
Thursday, July 10, 2025.
Online via Zoom.
For more info visit apps.ideal-logic.com. Master Pruner: Tree Pruning I (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
Pruning trees makes sense when you understand the science behind it. You will be introduced to the basics of tree biology and structure, tree responses to the basic types of pruning cuts, and pruning standards and best management practices. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Bess Bronstein is a horticultural consultant, a previous instructor for the Edmonds Community College horticulture program, and an ISA Certified Arborist.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Bess Bronstein. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_361e8c47b80f.
Thursday, July 10, 2025, 9:30 AM – 11:30 AM.
Online via Zoom.
For more info visit apps.ideal-logic.com. Master Pruner: Shrub Pruning I: The Friendly, Fearless, and Forgiving (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
Learn the basic pruning cuts, basic shrub habits, and how to identify good pruning objectives (why prune?). Learn about best pruning methods based on the natural growth habit of plants like nandina, tall Oregon grape, lilac, deciduous and evergreen azaleas, red flowering currant, camellia, Burkwood x osmanthus, kinnikinick, and yews. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Christina Pfeiffer is a horticulture consultant and educator with over 40 years’ experience in landscape horticulture. She brings an emphasis on sustainable garden practices that work in sync with nature to her classes. She holds degrees in horticulture from Michigan State and the University of Washington, and is an ISA Certified Arborist ®. For Christina, the next best thing to…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Christina Pfeiffer. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_5547ab8ca02e.
Thursday, July 10, 2025, 12:30 PM – 2:30 PM.
For more info visit apps.ideal-logic.com. Gardening with Edible & Medicinal Native Plants (in-person)
Cost: $30, pre-registration required
REGISTER ONLINE, Financial aid slots available on a first-come, first-served basis, Join us for an exploration of the edible and medicinal plants native to the PNW. In this interactive class, you'll learn how to identify, grow, harvest, and utilize 10+ local plants with nourishing and healing properties. Throughout the session, you'll gain practical knowledge on how to incorporate these plants into your daily life and learn how to cultivate them in your own garden. Plus, you'll have the chance to sample a variety of edible plants and create a custom tea blend to take home.
This class will be taught by Lea Dyga, Oxbow Farm’s Native Plant Nursery Manager, formerly the SER-UW Native Plant Nursery Manager. Lea Dyga (they/them) is an ecologist, environmental educator, and community organizer originally from West Michigan. They hold a Bachelors of Environmental Plant Biology from Michigan State University. Since moving to Seattle in 2022, they’ve enjoyed making friends with…
Event interval: Single day event. Campus location: Center for Urban Horticulture. Accessibility Contact: urbhort@uw.edu. Event Types: Special Events. Presenter: Lea Dyga, Oxbow Farm’s Native Plant Nursery Manager. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_60c055a157bf.
Monday, July 14, 2025, 6:00 PM – 8:00 PM.
For more info visit apps.ideal-logic.com. Virtual Panel: Driving Climate Action with Evidence-Based Solutions
Join UW Environment at PNW Climate Week! This virtual panel brings together researchers working across different environmental fields to address the urgency of climate change through innovative projects.
REGISTER HERE
Our Speakers: Meade Krosby: Dr. Krosby partners with land managers, policymakers, and communities to understand and address how climate change affects nature and people. Her work focuses on climate resilience, conservation planning, and helping others build skills and networks for adaptation.
Alex Gagnon: Dr. Gagnon studies how ocean acidification affects corals and ocean chemistry. He uses advanced tools and lab experiments to understand small-scale chemical changes and how they connect to global ocean patterns.
Eli Wheat: Dr. Wheat is passionate about regenerative food systems and teaches courses on sustainability and food production at UW. He co-chairs the Farm Advisory Committee with Dr. Yona Sipos and Farm Manager Perry Acworth, supporting the UW Farm.
Meg Chadsey: Dr. Chadsey's…
Wednesday, July 16, 2025, 2:00 PM – 3:00 PM.
Zoom, link will be added soon.
Master Pruner: Tree Pruning II (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
This class will show you how, what and when to apply a specific pruning system. This class will cover the natural pruning system, including structural pruning of young trees, as well as mature tree pruning techniques (crown cleaning, crown thinning, crown raising, crown reduction). More formal systems including pollarding, espalier, and pleaching are also covered. Pruning cycles and seasonal timing are discussed. Mal-pruning is defined (tree topping, lion’s tailing, over thinning), and rehabilitative pruning techniques are explained. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Bess Bronstein is a horticultural consultant, a previous instructor for the Edmonds Community College horticulture program, and an ISA Certified Arborist.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Bess Bronstein. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_97c6a002b434.
Thursday, July 17, 2025, 9:30 AM – 11:30 AM.
Online via Zoom.
For more info visit apps.ideal-logic.com. Master Pruner: Shrub Pruning II: Shearables, Hackables, and Untouchables (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
Some plants get cut to the ground annually, others are barely touched or all hell breaks loose. Find out which ones are which, what to appropriately shear every year, and how the “the pruning budget” differs between plant species and times of year. We will talk about heath, heather, lavender, rockrose, coppicing for stem and foliage effect, sub-shrubs like Russian sage, cape fuchsia, santolina, and sages, witch hazel, winter sweet, and double-file viburnum. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Christina Pfeiffer is a horticulture consultant and educator with over 40 years’ experience in landscape horticulture. She brings an emphasis on sustainable garden practices that work in sync with nature to her classes. She holds degrees in horticulture…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Christina Pfeiffer. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_a2fbd84f1ec3.
Thursday, July 17, 2025, 12:30 PM – 2:30 PM.
Online via Zoom.
For more info visit apps.ideal-logic.com. Terrarium Workshop at Schilling Cider House (in-person)
Cost: $75
Financial aid slots available on a first-come, first-served basis. REGISTER ONLINE, Learn how to create an indoor garden in miniature! Terrariums are a micro gardening technique that allows you to view nature up close and display it as a work of art. Instructor Tassy de Give, author of Rooted in Design, will guide you on building a terrarium and how to maintain it. The history of terrarium creation, planting techniques, and care tips will be discussed. Registration fee includes all necessary supplies.
We are hosting this terrarium workshop in partnership with Schilling Cider. This event is 21+ per Schilling Cider House rules. Cider is not included in the ticket price but can be purchased during and after the event.
Taught by Tassy de Give, a plant enthusiast and instructor who has worked in the horticulture field for the past 20 years. Tassy is a co-founder of Sprout Home and Geometry Gardens in Brooklyn, NY. She co-authored her first book in 2015 entitled Rooted in Design. Tassy has been a…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Age Range: Adults. Presenter: Tassy de Give. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_8f10840df78d.
Saturday, July 19, 2025, 10:00 AM – 11:00 AM.
Schilling Cider House
708 N 34th St, Seattle, Washington 98103.
For more info visit apps.ideal-logic.com. Urban Foraging: Weeds & Wild Foods (in-person)
Cost: $45
Financial aid slots available on a first-come, first-serve basis, REGISTER ONLINE
Participate in this 'weed walk' and learn how to identify and gather some of the most common edible weeds and wild foods available in your garden and in other disturbed areas. Many gardeners are already recognizing many of the benefits of these 'interlopers.' However, when it comes to serving them up in the kitchen, few of us have learned to take full advantage of these labor-free gifts. This hands-on workshop at Discovery Park includes discussion on gathering ethics, local rules and regulations, safety, and general information about how to cook with weeds. Attendees receive a handy take-home flier with field identification information and cooking tips.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Melany Vorass Herrera. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_46e8fa0d9fb0.
Saturday, July 19, 2025, 1:00 PM – 4:00 PM.
Discovery Park, North Parking Lot.
For more info visit apps.ideal-logic.com. Master Pruner: Shrub Pruning III: The Puzzlers and Consequences (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
This class covers how to prune rhododendron, hydrangea, callicarpa, Viburnum bodnantense, and abelia. Included in this class are basic pruning techniques, common pruning mistakes, and corrective pruning strategies. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Bess Bronstein is a horticultural consultant, a previous instructor for the Edmonds Community College horticulture program, and an ISA Certified Arborist.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Bess Bronstein. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_7cbf7ef4f945.
Thursday, July 24, 2025, 9:30 AM – 11:30 AM.
Online via Zoom.
For more info visit apps.ideal-logic.com. Master Pruner: Fruit Tree Pruning (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
Learn the basics of fruit tree pruning and how seasonal growth differences and specific goals affect when you use different pruning approaches. Apple, cherry, plum, and pear pruning will be addressed. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Ingela Wanerstrand is the owner of Green Darner Garden Design and a frequent horticultural speaker.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Ingela Wanerstrand. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_b751cc6c1e50.
Thursday, July 24, 2025, 12:30 PM – 2:30 PM.
Online via Zoom.
For more info visit apps.ideal-logic.com. Plein Air Plants (in-person)
Cost: $60
Advance registration required
Financial aid rates available on a first-come, first-served basis.
REGISTER ONLINE
Do you love botanical art? Do you like to spend time outside? Combine the two in this nature journaling class that focuses on plants. In this class you’ll learn techniques to document the experiences you’re seeing in nature, how to improve your observational skills, how to combine pen and watercolor to create your pieces, how to create a pleasing composition, and color relationships. You’ll also learn how to use creative prompts to connect further and deeper with nature. Come create a memory of a place! During inclement weather class will be held under shelter.
A simple supply list will be provided with your confirmation email.
Robin Bundi is a teacher, artist, and designer living in Seattle, Washington. She loves to explore the natural world and primarily creates work to celebrate the natural world and our connection to it. Robin’s studio practice includes watercolor painting, drawing,…
Event interval: Single day event. Campus location: Washington Park Arboretum (LNDMK-8). Accessibility Contact: urbhort@uw.edu. Presenter: Robin Bundi. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_f22a51169917.
Saturday, July 26, 2025, 9:00 AM – 12:00 PM.
For more info visit apps.ideal-logic.com. Friends of Seattle's Olmsted Parks Walking Tour: University of Washington Campus
Price: $30
REGISTER ONLINE, Financial aid spots available; first come, first serve. Join the Friends of Seattle’s Olmsted Parks on the first of two walking tours of Seattle’s Olmsted Brothers historic design legacy this summer!
Relocated from downtown northward to larger, less-developed acreage in 1895, the University of Washington consisted of just six buildings when the Olmsted Brothers firm prepared a general campus plan in 1903. John Charles Olmsted returned in 1906 to design the grounds for the 1909 Alaska-Yukon-Pacific Exposition (AYPE), which attracted over three million people to Seattle (population 240,000) that year. Olmsted incorporated the campus into the overall city park system and encouraged the university’s regents to reserve part of the campus for public park uses. Today it is an important element of the city’s open space infrastructure.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Jennifer Ott and Tanya DeMarsh-Dodson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_122e7ef2c4ce.
Saturday, July 26, 2025, 10:00 AM – 12:00 PM.
University of Washington Campus: Gerberding Hall.
For more info visit apps.ideal-logic.com. Forest Bathing (in-person)
Cost: $25
Advance registration required.
Join UW Botanic Gardens and Cascadia Forest Therapy for a unique forest bathing opportunity in the Washington Park Arboretum. Forest bathing (or shinrin-yoku) has been popular in Japan for decades and is gaining momentum in the US. The practice encourages you to move in nature at a slower pace and take in the atmosphere around you. Multiple scientific studies have shown that the practice lowers stress and blood pressure levels, while increasing immune system functioning, making you more resilient to diseases and illness.
During this class the guide, in partnership with the forest, will offer an evolving series of invitations crafted to help participants slow down and open their senses. The opening of one’s senses encourages mindfulness, which readies the heart and mind to be fully present in the natural world. Come discover the medicine of being in the forest.
Accessibility: These sessions are slow-paced and generally cover less than a mile of trail. Trails are not…
Event interval: Single day event. Campus location: Washington Park Arboretum (LNDMK-8). Accessibility Contact: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_5644a52d3767.
Saturday, July 26, 2025, 10:00 AM – 11:30 AM.
For more info visit apps.ideal-logic.com. Master Pruner: Conifer Pruning (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
Conifers play by different rules than their flowering friends. This class will cover timing and where to make cuts that will help conifers stay vibrant. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Bess Bronstein is a horticultural consultant, a previous instructor for the Edmonds Community College horticulture program, and an ISA Certified Arborist.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Bess Bronstein. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_25eee3dfdbb6.
Thursday, July 31, 2025, 9:30 AM – 11:30 AM.
For more info visit apps.ideal-logic.com. Master Pruner: Prune and Renovate the Overgrown Landscape (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
This is a primary class of the Master Pruner course series. It covers basic pruning of ornamental trees and shrubs as well as creative solutions to the overgrown or over-planted garden. The types of pruning cuts are shown and discussed, and the concept of the 'pruning budget' is discussed for different plant and different growth types. Before and after photos and diagrams of real-life pruning examples will be used to illustrate pruning for size reduction and pruning for definition (thinning). Students will gain insight into the process of yard renovation, where pruning is but one tool in renovating a garden. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Christina Pfeiffer is a horticulture consultant and educator with over 40 years’ experience in landscape…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Christina Pfeiffer. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_58337a836c49.
Thursday, July 31, 2025, 12:30 PM – 2:30 PM.
For more info visit apps.ideal-logic.com. Master Pruner: Japanese Garden Pruning (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
This class will cover pruning Japanese upright maples (fan pruning), Japanese laceleaf maples (shell pruning), pruning pines (cloud pruning) and shearing masses of lower story plants. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Bess Bronstein is a horticultural consultant, a previous instructor for the Edmonds Community College horticulture program, and an ISA Certified Arborist.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Bess Bronstein. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_f1f630b0e714.
Thursday, August 7, 2025, 9:30 AM – 11:30 AM.
For more info visit apps.ideal-logic.com. Free 1st Thursday Public Tour
UW Botanic Gardens is committed to enriching the lives of all community members with free public tours. Please note our tours are for individual participants not organized groups. If you wish to have a group tour, please explore your options at botanicgardens.uw.edu. To ensure a positive tour experience and the safety of our visitors, our tours are now capped at 50 attendees on a first come first serve basis.
Our 1st Thursday public tours are casual walks through various areas of the 230 acre Washington Park Arboretum. Walks feature seasonal themes, collections plants, explorations of botany, and the history of our organization.
To join the walk, meet us at the Graham Visitors Center, docents will be there to greet and gather visitors.
We make every effort to tailor our tours to our audience and most months we are able to offer visitors a choice of a longer or shorter walk depending on their capabilities. If you have any specific requirements or mobility limitations we will do our best to accommoda…
Event interval: Single day event. Accessibility Contact: cmn23@uw.edu. Event Types: Information Sessions. Age Range: Teens. Adults. Presenter: UW Botanic Garden Tour Docents. Contact Information: Catherine Nelson at cmn23@uw.edu.
Thursday, August 7, 2025, 11:30 AM – 1:00 PM.
Washington Park Arboretum
Graham Visitors Center
2300 Arboretum Dr E, Seattle.
For more info visit botanicgardens.uw.edu. Master Pruner: Pruning Art or Atrocity? (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
This class covers the three main forms of mal-pruning: tree topping, inappropriate shearing of trees and shrubs, and over-thinning. Then we compare and contrast mal-pruning with bona-fide examples of pruning art: pollarding, cloud pruning, topiary, pleaching, and coppicing. The class ends on a humorous note as slides are shown of "The Good, the Bad, and the Bizarre". Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Christina Pfeiffer is a horticulture consultant and educator with over 40 years’ experience in landscape horticulture. She brings an emphasis on sustainable garden practices that work in sync with nature to her classes. She holds degrees in horticulture from Michigan State and the University of Washington, and is an ISA Certified Arborist ®. For…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Christina Pfeiffer. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_db397fbe4aed.
Thursday, August 7, 2025, 12:30 PM – 2:30 PM.
For more info visit apps.ideal-logic.com. Plein Air Plants (in-person)
Cost: $60
Advance registration required
Financial aid rates available on a first-come, first-served basis.
REGISTER ONLINE
Do you love botanical art? Do you like to spend time outside? Combine the two in this nature journaling class that focuses on plants. In this class you’ll learn techniques to document the experiences you’re seeing in nature, how to improve your observational skills, how to combine pen and watercolor to create your pieces, how to create a pleasing composition, and color relationships. You’ll also learn how to use creative prompts to connect further and deeper with nature. Come create a memory of a place! During inclement weather class will be held under shelter.
A simple supply list will be provided with your confirmation email.
Robin Bundi is a teacher, artist, and designer living in Seattle, Washington. She loves to explore the natural world and primarily creates work to celebrate the natural world and our connection to it. Robin’s studio practice includes watercolor painting, drawing,…
Event interval: Single day event. Campus location: Washington Park Arboretum (LNDMK-8). Accessibility Contact: urbhort@uw.edu. Presenter: Robin Bundi. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_d22ac43d3aa2.
Saturday, August 9, 2025, 9:00 AM – 12:00 PM.
For more info visit apps.ideal-logic.com. Native Plants 101: Field Identification (in-person)
Cost: $30, pre-registration required
REGISTER ONLINE, Financial aid slots available on a first-come, first-served basis, Come identify native plants at the Washington Park Arboretum! Learn some of Western Washington’s common native plants as well as pick up a few tips on plant identification! We’ll cover several different species of native plants as well as their growth preferences and how best to incorporate them into your garden or yard at home. This class will be taught by Lea Dyga, Oxbow Farm’s Native Plant Nursery Manager, formerly the SER-UW Native Plant Nursery Manager. Lea Dyga (they/them) is an ecologist, environmental educator, and community organizer originally from West Michigan. They hold a Bachelors of Environmental Plant Biology from Michigan State University. Since moving to Seattle in 2022, they’ve enjoyed making friends with the local flora and fungi. Lea’s passion for plants, restoration, and community education has led them to pursue a career PNW native plant propagation where their work…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Event Types: Special Events. Presenter: Lea Dyga, Oxbow Farm’s Native Plant Nursery Manager. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_ec7101308303.
Sunday, August 10, 2025, 10:00 AM – 12:00 PM.
Washington Park Arboretum.
For more info visit apps.ideal-logic.com. Master Pruner: Rose Pruning (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
Learn the right way to prune roses: hybrid teas, climbers, & landscape roses. This class will cover the best time of year to prune, the right tools, and techniques for ensuring healthy, long-lasting roses. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Keith Dekker has been involved in horticulture for over 45 years. For the last 30 years his career has focused on the comprehensive care of residential landscapes in the Pacific Northwest. As a Clallam County Master Gardener and active volunteer with PlantAmnesty, Keith contributes to his community by teaching classes and giving talks to promote best practices for successful, sustainable gardening. Keith lives on the Olympic Peninsula with his wife and has a business specializing in fine pruning.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Keith Dekker. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_69556ead543a.
Thursday, August 14, 2025, 9:30 AM – 11:30 AM.
For more info visit apps.ideal-logic.com. Master Pruner: Rehabilitative Pruning (online)
Cost: $35 for PlantAmnesty Members, $75 for non-members
Register Online, Limited financial aid slots offered on a first-come, first-serve basis.
This class covers how to restore the natural shapes of trees and shrubs that have been mal-pruned. Students attending this class should already be familiar with principles of selective pruning. Included are discussions of water-sprouts, suckers, radical renovation techniques, and crown restoration. Part of the Master Pruner Series held in partnership with PlantAmnesty.
Professional credits available: ISA -2, APLD - 2, CPH - 2, ecoPRO -2, NALP/WALP - 2
Christina Pfeiffer is a horticulture consultant and educator with over 40 years’ experience in landscape horticulture. She brings an emphasis on sustainable garden practices that work in sync with nature to her classes. She holds degrees in horticulture from Michigan State and the University of Washington, and is an ISA Certified Arborist ®. For Christina, the next best thing to being in the garden is teaching and…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Christina Pfeiffer. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_30d33b9d61da.
Thursday, August 14, 2025, 12:30 PM – 2:30 PM.
For more info visit apps.ideal-logic.com. Friends of Seattle's Olmsted Parks Walking Tour: Washington Park Arboretum
Price: $30
REGISTER ONLINE, Financial aid spots available; first come, first serve. Join the Friends of Seattle’s Olmsted Parks on the final walking tour of Seattle’s Olmsted Brothers parks and parkways this summer!
The city first acquired Washington Park from the Puget Mill Company in 1900. By 1904, the city hired the Olmsted Brothers firm to prepare drawings for a roadway alignment through the park. Plans for how a “pleasure drive” would connect Lake Washington Boulevard to the university campus through Washington Park evolved quickly over the next several months.
The Olmsted Brothers firm would not address Washington Park design again until the 1930’s, when James Dawson was hired to provide a master plan for creating an arboretum within the park. Features of the Olmsted Brothers’ plans that are most evident today include Lake Washington Boulevard, Azalea Way, the Stone Cottage and Stone Overlook, and the pond in the Japanese Garden.
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Jennifer Ott and Sue Nicol. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_d8053b3ea416.
Saturday, August 23, 2025, 10:00 AM – 12:00 PM.
Washington Park Arboretum
2300 Arboretum Drive E
Seattle WA 98112.
For more info visit apps.ideal-logic.com. Native Plants for Restoration: Responsibly Growing and Sourcing Native Plants (online)
Cost: $30
REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis.
Join us for an in-depth exploration of responsible cultivation of native plants for restoration. In this class, we’ll cover key principles of ecological horticulture, delve into the unique challenges faced by native plant nurseries, and discuss how to responsibly source native plants for your restoration site or garden. Gain valuable insights into what to ask when purchasing plants to make informed, eco-conscious choices and essential tips on how to care for native plants to ensure their long-term success. Whether you're an aspiring gardener or a seasoned restoration enthusiast, this class will equip you with the knowledge of how to source for a thriving, environmentally responsible native plant landscape.
This class will be taught by Lea Dyga, Oxbow Farm’s Native Plant Nursery Manager, formerly the SER-UW Native Plant Nursery Manager. Lea Dyga (they/them) is an ecologist, environmental educator, and…
Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Lea Dyga, Oxbow Farm’s Native Plant Nursery Manager. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_bf250e7c0469.
Thursday, August 28, 2025, 6:00 PM – 8:00 PM.
Online via Zoom.
For more info visit apps.ideal-logic.com. Free 1st Thursday Public Tour
UW Botanic Gardens is committed to enriching the lives of all community members with free public tours. Please note our tours are for individual participants not organized groups. If you wish to have a group tour, please explore your options at botanicgardens.uw.edu. To ensure a positive tour experience and the safety of our visitors, our tours are now capped at 50 attendees on a first come first serve basis.
Our 1st Thursday public tours are casual walks through various areas of the 230 acre Washington Park Arboretum. Walks feature seasonal themes, collections plants, explorations of botany, and the history of our organization.
To join the walk, meet us at the Graham Visitors Center, docents will be there to greet and gather visitors.
We make every effort to tailor our tours to our audience and most months we are able to offer visitors a choice of a longer or shorter walk depending on their capabilities. If you have any specific requirements or mobility limitations we will do our best to accommoda…
Event interval: Single day event. Accessibility Contact: cmn23@uw.edu. Event Types: Information Sessions. Age Range: Teens. Adults. Presenter: UW Botanic Garden Tour Docents. Contact Information: Catherine Nelson at cmn23@uw.edu.
Thursday, September 4, 2025, 11:30 AM – 1:00 PM.
Washington Park Arboretum
Graham Visitors Center
2300 Arboretum Dr E, Seattle.
For more info visit botanicgardens.uw.edu.