College of the Environment

in-person, pruning, master, pruner, with, plants, gardening, fall, tree, native

Seattle, WA — Pacific Time

This hCalendar-compliant page is optimized for search engines. View this calendar as published at environment.uw.edu.

“Wild Seattle” Book Launch with Roddy Scheer

Tuesday, July 7, 2026, 7:00–8:30PM, Graham Visitors Center FREE TO THE PUBLIC (but please RSVP!) Join us for an evening with Seattle-based author, journalist, and photographer Roddy Scheer as we celebrate the launch of his new book, Wild Seattle: Explore the Amazing Nature in and Around the Emerald City. Purchase a signed copy from the Arboretum Gift Shop, toast to the book’s success, and meet the author. Guests will also have the opportunity to sign up for a guided kayak tour of the Arboretum waterways (date to be announced), led by Roddy. Arboretum Foundation members receive a 10% discount on all Gift Shop purchases and the guided kayak tour. Net proceeds from the kayak tour will be generously donated to the Arboretum Foundation. Event interval: Single day event. Campus location: Washington Park Arboretum (LNDMK-8). Accessibility Contact: info@arboretumfoundation.org. Ticket Link: https://arboretumfoundation.org/events/wild-seattle-book-launch/. Tuesday, July 7, 2026, 2:00 PM – 3:00 PM.

Arboretum Walking Tour

Class Cost: First Ticket $20; Additional Tickets $15 each Financial aid slots available on a first-come, first-served basis, REGISTER ONLINE Arboretum walking 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. This educational tour is tailored for an adult audience, although minors are welcome. We will cover history, botany, and plant collections at the Washington Park Arboretum, highlighting plants and gardens of seasonal interest. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Catherine Nelson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_61821af4fc5a. Saturday, July 11, 2026, 10:00 AM – 11:30 AM. Washington Park Arboretum. For more info visit apps.ideal-logic.com.

Field Sketching Plants in Watercolor (in-person)

Cost: $60 Advance registration required Financial aid seats 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 cover. , Students must bring their own art supplies. A 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… 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_7c901a1553f8. Saturday, July 11, 2026, 10:00 AM – 1:00 PM. For more info visit apps.ideal-logic.com.

Master Pruner - Full Series (in-person)

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 Monday for 6 weeks, July 13th - August 17th, with 2 lectures on each Monday at 9:30am-11:30am and 12:30pm-2:30pm. Registration for the full series bundle closes the first date of the series, July 13th, 2026. The Master Pruner - Full Series includes these 12 Master Pruner lectures:Tree Pruning I: How Trees Grow & Respond, Shrub Pruning I: The Friendly, Fearless, & Forgiving, Tree Pruning II: How, When, & What to Prune, Shrub Pruning II: Shearables, Hackables, and Untouchables, Tree Pruning III:… Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Ellie Bender, Christina Pfeiffer, Bess Bronstein, Kristin Jackson, Ben Mark, Ingela Wanerstrand, & Laura Watson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_3048fb05b2f8. Monday, July 13, 2026. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Master Pruner: Tree Pruning I - How Trees Grow & Respond (in-person)

Cost: $35 for PlantAmnesty Members, $75 for non-members REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. Learn about the science and biology behind successful tree pruning. Understand the structures, functions, and natural defenses of trees and how those affect plant responses to pruning. 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, LA-CES - 2. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Ellie Bender. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_4119bc6326a1. Monday, July 13, 2026, 9:30 AM – 11:30 AM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Master Pruner: Shrub Pruning I - The Friendly, Fearless, & Forgiving (in-person)

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 basic cuts, basic plant habits and what Cass Turnbull called the “pruning budget”. It also covers five plants that are relatively easy to prune: nandina, evergreen azalea, lilac, camellia, and yew. 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, LA-CES - 2. 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_ad01e172a208. Monday, July 13, 2026, 12:30 PM – 2:30 PM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Virtual Presentation: Sea Ice and Climate Change Featuring Professor Cecilia Bitz

Kick off PNW Climate Week 2026 with groundbreaking climate science! Join UW College of the Environment for a high‑energy, fully virtual talk and Q&A with Professor Cecilia Bitz, the Jerome M. Paros Endowed Chair in Atmospheric and Climate Hazard Research. Sea ice, a bedrock of Arctic communities and the bellwether of climate change, is under threat — but new research is providing a way forward. Professor Bitz is one of the world’s go‑to experts on Arctic climate change. She digs deep into how melting sea ice reshapes global systems, and builds the models that help us predict what’s coming next. As an NSF and NOAA‑funded researcher, she’s pushing the science that policymakers rely on, including briefing the U.S. Senate on Arctic risks. Her work sits at the front line of climate action. Monday, July 13, 2026, 1:00 PM – 2:00 PM. Virtual. For more info visit luma.com.

Building Community Resilience: Panel discussion and networking

Join us for an engaging and thought-provoking event exploring how communities are building resilience in the face of growing water challenges. All are welcome to connect, learn, and participate in a dynamic program featuring networking, storytelling, and an interactive panel discussion. Hear from leading voices in climate science, conservation, resilience planning, and technology as they share real-world experiences and insights. Together we’ll explore what’s working, what we’re learning, and how collaborative partnerships with communities, across the Pacific Northwest and beyond, are driving sustainable, water-smart resilience. Agenda 5:30-6:00 Doors open and mingling 6:00-7:00 Panel discussionSusan Dickerson-Lange, Director of UW's Climate Impacts Group, Marla Smith-Nilson, Founder and Executive Director at Water1st International, Kari Vigerstol, Senior Advisor for Water Scarcity and Resilience, The Nature Conservancy, Jessica Farrington, Senior Climate Resilience Planner, Black and Veatch, … Event interval: Single day event. Accessibility Contact: cig@uw.edu. Event Types: Conferences. Special Events. Event sponsors: The Nature Conservancy Washington PNW Climate Week. Wednesday, July 15, 2026, 5:30 PM – 7:30 PM. Geocaching HQ 837 N 34th St #300 Seattle, WA 98103. For more info visit luma.com.

Taking the Edge Off: Pruning for Natural Areas Workshop (in-person)

Cost: $80, pre-registration required REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. Natural area landscapes hold an important place and functions in the urban environment. Managing vegetation along trails, roads, and other edges can pose a variety of challenges for the available stewardship resources. This lecture and hands-on workshop will cover how to manage and prune native vegetation adjacent to trails, drives, and streets for optimal environmental functions, appearance, safety, & visibility. The lecture will include current best pruning practices and how they translate for the specific goals and functions of natural area plantings. Considerations for reducing long-term labor needs and how to lengthen the time between pruning cycles will be covered, along with common pruning techniques that are ineffective and why. After the lunch break, the class will meet at a field site in NE Seattle for hands-on field instruction. Students will get practice using the best… Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Hillary Ethe. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_c42668d28581. Thursday, July 16, 2026, 9:00 AM – 3:00 PM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Forest Bathing (in-person)

Cost: $25 for first registration, $15 for each additional ticket Advance registration required. REGISTER ONLINE 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… Event interval: Single day event. Campus location: Washington Park Arboretum (LNDMK-8). Accessibility Contact: urbhort@uw.edu. Presenter: Cascadia Forest Therapy. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_d75566bafc31. Saturday, July 18, 2026, 10:00 AM – 11:30 AM. For more info visit apps.ideal-logic.com.

Native Plants 101: Field Identification (in-person)

Cost: $30, advanced registration required Financial aid available on a first-come, first-served basis, REGISTER ONLINE, Learn some of Western Washington’s common native plants as well as pick up a few tips on plant identification in general! 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. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Lea Dyga, Oxbow Farm Native Plant Nursery Manager. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_4ae79eddd031. Saturday, July 18, 2026, 10:00 AM – 12:00 PM. Washington Park Arboretum 2300 Arboretum Dr E. For more info visit apps.ideal-logic.com.

Master Pruner: Tree Pruning II - How, When, & What to Prune (in-person)

Cost: $35 for PlantAmnesty Members, $75 for non-members REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. Learn about ANSI standards and best management practices. The four basic pruning cuts and their uses will be discussed in detail. Timing and pruning budgets will also be covered. 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, LA-CES - 2. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Ellie Bender. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_e4ee1746967f. Monday, July 20, 2026, 9:30 AM – 11:30 AM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Master Pruner: Shrub Pruning II - Shearables, Hackables, & Untouchables (in-person)

Cost: $35 for PlantAmnesty Members, $75 for non-members REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. There are some plants that are cut to the ground each year, but there are others you barely touch and it’s pandemonium! Find out which ones are which, as well as which plants are appropriately sheared every year. 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, LA-CES - 2. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Kristin Jackson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_cdb422456442. Monday, July 20, 2026, 12:30 PM – 2:30 PM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Arboretum Walking Tour

Class Cost: First Ticket $20; Additional Tickets $15 each Financial aid slots available on a first-come, first-served basis REGISTER ONLINE Arboretum walking 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. This educational tour is tailored for an adult audience, although minors are welcome. We will cover history, botany, and plant collections at the Washington Park Arboretum, highlighting plants and gardens of seasonal interest. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Catherine Nelson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_d4e6e4353214. Saturday, July 25, 2026, 10:00 AM – 11:30 AM. Washington Park Arboretum. For more info visit apps.ideal-logic.com.

Master Pruner: Tree Pruning III - Specialized Pruning Strategies (in-person)

Cost: $35 for PlantAmnesty Members, $75 for non-members REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. Learn how to prune trees for various purposes. Included will be guidance on training young trees and maintaining mature trees, along with discussions of specialized tree pruning techniques. 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, LA-CES - 2. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Ben Mark. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_200805b01124. Monday, July 27, 2026, 9:30 AM – 11:30 AM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Master Pruner: Japanese Garden Pruning (in-person)

Cost: $35 for PlantAmnesty Members, $75 for non-members REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. Creating and maintaining a Japanese Garden requires a high level of pruning skill and dedicated annual maintenance. This class covers the pruning of Japanese maples (upright and weeping), bamboo, cloud pruning pines, 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, LA-CES - 2. 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_1c33e2e6cc49. Monday, July 27, 2026, 12:30 PM – 2:30 PM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

WSG Seaweed Office Hours

Drop-in office hours for all your seaweed information needs! How to participate: Zoom meeting link: https://washington.zoom.us/j/96836051377?pwd=dGJWc0RuRm9ZTFArbzQ2aGFacWRBZz09 , Join at any point during the one-hour window (no RSVP required) , Attendees will be served in order of arrival , Please stay on mute until invited to speak , Initial conversations will be limited to 5 minutes until everyone’s had a chance to speak , All conversations should be considered public, and may be recorded. Event interval: Single day event. Online Meeting Link: https://washington.zoom.us/j/96836051377?pwd=dGJWc0RuRm9ZTFArbzQ2aGFacWRBZz09. Accessibility Contact: Meg Chadsey, mchadsey@uw.edu. Event Types: Information Sessions. Thursday, July 30, 2026, 8:00 AM – 9:00 AM. Online.

Master Pruner: Shrub Pruning III - The Puzzlers and Consequences (in-person)

Cost: $35 for PlantAmnesty Members, $75 for non-members REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. Learn how to prune Rhododendron, Hydrangea, Callicarpa (Beautyberry), Viburnum bodnantense, and Abelia. Included in this class are basic pruning techniques, common pruning mistakes, and some corrective pruning. 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, LA-CES - 2. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Ellie Bender. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_308bb92c10b1. Monday, August 3, 2026, 9:30 AM – 11:30 AM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Master Pruner: Corrective Pruning (in-person)

Cost: $35 for PlantAmnesty Members, $75 for non-members REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. Learn restoration strategies for trees and shrubs that have been mal-pruned. Mal-pruning may include topping, over-thinning, inappropriate shearing, and more. Included is discussion of watersprouts, 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, LA-CES - 2. 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_4d29c8358866. Monday, August 3, 2026, 12:30 PM – 2:30 PM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Arboretum Walking Tour

Class Cost: First Ticket $20; Additional Tickets $15 each Financial aid slots available on a first-come, first-served basis REGISTER ONLINE Arboretum walking 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. This educational tour is tailored for an adult audience, although minors are welcome. We will cover history, botany, and plant collections at the Washington Park Arboretum, highlighting plants and gardens of seasonal interest. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Catherine Nelson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_754fdf376bcb. Saturday, August 8, 2026, 10:00 AM – 11:30 AM. Washington Park Arboretum. For more info visit apps.ideal-logic.com.

Native Plants 101: Field Identification (in-person)

Cost: $30, advanced registration required Financial aid available on a first-come, first-served basis, REGISTER ONLINE, Learn some of Western Washington’s common native plants as well as pick up a few tips on plant identification in general! 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. Event interval: Single day event. Campus location: Center for Urban Horticulture Complex (CUH). Accessibility Contact: urbhort@uw.edu. Presenter: Lea Dyga, Oxbow Farm Native Plant Nursery Manager. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_deecde2015d0. Saturday, August 8, 2026, 10:00 AM – 12:00 PM. For more info visit apps.ideal-logic.com.

Master Pruner: Renovate & Prune the Overgrown Landscape (in-person)

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 one of PlantAmnesty’s most popular classes and offers an introduction to pruning and other approaches for landscape renovation. Learn how to undo overplanting errors, when and how to transplant, and how to clean up a neglected landscape. 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, LA-CES - 2. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Ellie Bender. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_5bedd2dee65b. Monday, August 10, 2026, 9:30 AM – 11:30 AM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Master Pruner: Hedging Your Bets - Pruning Art or Pruning Horror? (in-person)

Cost: $35 for PlantAmnesty Members, $75 for non-members REGISTER ONLINE, Limited financial aid slots offered on a first-come, first-serve basis. Instances of mal-pruning and good intentions gone awry are sometimes explained away as “pruning art.” From improperly sheared hedges to ineffective design and training, this class will contrast examples of mal-pruning with bona-fide forms of pruning art and show how to use them to best effect. We’ll cover hedges and topiary, espalier, coppicing, pollarding, and pleaching, ending with a humorous note with slides from Cass Turnbull’s “The Good, The Bad, and the Bizarre” collection. 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, LA-CES - 2. 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_47e8580c2149. Monday, August 10, 2026, 12:30 PM – 2:30 PM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Gardening with Edible & Medicinal Native Plants (in-person)

Cost: $30, advanced registration required Financial aid available on a first-come, first-served basis, REGISTER ONLINE, 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. Event interval: Single day event. Campus location: Center for Urban Horticulture Complex (CUH). Accessibility Contact: urbhort@uw.edu. Presenter: Lea Dyga, Oxbow Farm Native Plant Nursery Manager. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_a0d6a56d1298. Wednesday, August 12, 2026, 6:00 PM – 8:00 PM. For more info visit apps.ideal-logic.com.

Master Pruner: Fruit Tree Pruning (in-person)

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, LA-CES - 2. 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_c802300b6c04. Monday, August 17, 2026, 9:30 AM – 11:30 AM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Master Pruner: Vine Pruning (in-person)

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 pruning and management of some of our most common ornamental vines: wisteria, common varieties of clematis, Boston ivy/Virginia creeper, trumpet vine, and honeysuckle. 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, LA-CES - 2. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Laura Watson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_647517d3d68f. Monday, August 17, 2026, 12:30 PM – 2:30 PM. Center for Urban Horticulture 3501 NE 41st Street Seattle WA 98105. For more info visit apps.ideal-logic.com.

Arboretum Walking Tour

Class Cost: First Ticket $20; Additional Tickets $15 each Financial aid slots available on a first-come, first-served basis REGISTER ONLINE Arboretum walking 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. This educational tour is tailored for an adult audience, although minors are welcome. We will cover history, botany, and plant collections at the Washington Park Arboretum, highlighting plants and gardens of seasonal interest. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Catherine Nelson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_bbe1f0530424. Saturday, August 22, 2026, 10:00 AM – 11:30 AM. Washington Park Arboretum. For more info visit apps.ideal-logic.com.

WSG Seaweed Office Hours

Wildfire in the West: Learning from the Past, Navigating the Future

With another wildfire season in full swing, this webinar will highlight past trends and future expectations of wildfire in the western US with an emphasis on the Pacific Northwest. In the last few decades, the west has experienced longer fire seasons with more area burned by more severe wildfires. Wildfires appear to be spreading faster and creating more destruction with significant consequences to people and communities. Yet at the same time, we live intermixed with species and ecosystems that depend on fire to survive and thrive. The removal of fire from these ecosystems is the root cause of the wildfire crisis facing the west today. This webinar will discuss the confounding causes of the wildfire crisis and how climate change adds fuel to the crisis. Dr. Crystal Raymond is the Deputy Director of Policy and Management for the Western Fire and Forest Resilience Collaborative. Crystal’s role with the Collaborative is to connect science with the needs of fire and land managers. For 15 years, Crystal has work… Event interval: Single day event. Accessibility Contact: cig@uw.edu. Event Types: Lectures/Seminars. Event sponsors: Climate Impacts Group Western Fire and Forest Resilience Collaborative. Tuesday, September 1, 2026, 12:00 PM – 1:00 PM. Online (Zoom). For more info visit washington.zoom.us.

Garden Ready for Fall Birds (Online)

Cost: $25 - Advance registration required Financial aid slots available on a first-come, first-served basis, REGISTER ONLINETo the true gardener, our gardens are a little piece of heaven on earth. Gardens are fed by our love of nature, our pleasure in making things grow, our creativity in designing a space of color, scent, and seasonal change. Gardens feed our souls. They also feed many others who share our planet. Among these, birds figure large. You may think that your garden plot is too small to significantly impact birds, but 80% of wild lands in the U.S. are privately owned. Your garden can be a critical haven for birds. Let master birder Connie Sidles give you some tips on how to make your fall garden bird-friendly! New to Zoom or need more information? Get Started Here. All times are Pacific Time. Accessibility: Closed captioning (through Zoom) is available for all of our online classes. This class will be recorded and available for registrants to view for 2 weeks after the class date. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Constance Sidles. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_47c59a37383b. Wednesday, September 9, 2026, 7:00 PM – 8:30 PM. Online via Zoom. For more info visit apps.ideal-logic.com.

Arboretum Walking Tour

Class Cost: First Ticket $20; Additional Tickets $15 each Financial aid slots available on a first-come, first-served basis REGISTER ONLINE Arboretum walking 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. This educational tour is tailored for an adult audience, although minors are welcome. We will cover history, botany, and plant collections at the Washington Park Arboretum, highlighting plants and gardens of seasonal interest. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Catherine Nelson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_9ca3efce9039. Saturday, September 12, 2026, 10:00 AM – 11:30 AM. Washington Park Arboretum. For more info visit apps.ideal-logic.com.

Botanical Relief Block Printing (in-person)

Class Cost: $85, 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 Complex (CUH). Campus room: Douglas Headhouse. Accessibility Contact: urbhort@uw.edu. Presenter: Anneke Wilder. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_a200c0c9913d. Saturday, September 12, 2026, 10:00 AM – 1:00 PM. For more info visit apps.ideal-logic.com.

Local Plants for Natural Dyes and Pigments (in-person)

Cost: $65, Advance registration required Financial aid slots available on a first-come, first-served basis, REGISTER ONLINE, This workshop will provide an introduction to the world of natural dyes with a focus on the use of common garden plants, local ornamental trees and flowers, and even weeds! Students will learn how to prepare dye baths, how different fibers react to natural dyes, and be introduced to the use of mordants. Each student will leave with a swatch book and a silk scarf that they dye themselves. 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 themes of growth and decay—of our bodies, our culture,… Event interval: Single day event. Campus location: Center for Urban Horticulture Complex (CUH). Campus room: Douglas Classroom. Accessibility Contact: urbhort@uw.edu. Presenter: Anneke Wilder. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_bd714865d776. Sunday, September 13, 2026, 10:00 AM – 1:00 PM. For more info visit apps.ideal-logic.com.

Native Plants 101: Gardening with Bulbs (Online)

Cost: $25 - Advance registration required Financial aid slots available on a first-come, first-served basis, REGISTER ONLINEThis class introduces participants to the unique world of Pacific Northwest native flowering bulbs. We’ll explore their ecological roles in local ecosystems, their ethnobotanical significance, and the methods used to cultivate bulbs in nursery settings. Participants will also gain practical guidance on how to incorporate native bulbs into home gardens. This class will be taught by Lea Dyga, Oxbow Farm’s Native Plant Nursery Manager, formerly the SER-UW Native Plant Nursery Manager. New to Zoom or need more information? Get Started Here. All times are Pacific Time. Accessibility: Closed captioning (through Zoom) is available for all of our online classes. This class will be recorded and available for registrants to view for 2 weeks after the class date. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Lea Dyga, Oxbow Farm Native Plant Nursery Manager. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_9300c1bea4e6. Wednesday, September 16, 2026, 7:00 PM – 8:30 PM. Online via Zoom. For more info visit apps.ideal-logic.com.

Gardening with the Seasons: Fall (online)

Cost: $25 Financial aid slots available on a first-come, first-served basis, REGISTER ONLINE, Autumn is a dynamic season in the garden. Many plants are heading into dormancy, while others are in a period of active growth. Doing the right gardening tasks now can set the stage for next year's garden: adding new plants for seasonal interest or making changes to address problems observed over the past season. Some of the best things to do - or to avoid - at this time of year may seem counter-intuitive to some gardeners. This session will cover what to plant in fall, lawn care, how to prepare the garden for winter, and how to maximize seasonal interest and appearance. About this series: Plants and gardens don't live by the written calendar, but by the seasonal cycles and cues of changes in daylight, temperature, and moisture. When gardeners become acquainted with the seasonal rhythms and life cycles in the garden, and learn to work in sync with nature, caring for the garden becomes more of a process and less of a… 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_f4aa0ab1a329. Thursday, September 17, 2026, 7:00 PM – 8:30 PM. Online via Zoom. For more info visit apps.ideal-logic.com.

Gardening with the Seasons: Fall (in-person)

Cost: $35 Financial aid slots available on a first-come, first-served basis, REGISTER ONLINE, Join us in person at the Center for Urban Horticulture! Autumn is a dynamic season in the garden. Many plants are heading into dormancy, while others are in a period of active growth. Doing the right gardening tasks now can set the stage for next year's garden: adding new plants for seasonal interest or making changes to address problems observed over the past season. Some of the best things to do - or to avoid - at this time of year may seem counter-intuitive to some gardeners. This session will cover what to plant in fall, lawn care, how to prepare the garden for winter, and how to maximize seasonal interest and appearance. In addition to hands-on demonstrations, we will end the class by taking a stroll through the Center for Urban Horticulture’s gardens. About this series: Plants and gardens don't live by the written calendar, but by the seasonal cycles and cues of changes in daylight, temperature, and moisture.… Event interval: Single day event. Campus location: Center for Urban Horticulture Complex (CUH). Campus room: Douglas Research Conservatory. 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_d25d70d2d551. Saturday, September 19, 2026, 10:00 AM – 12:15 PM. For more info visit apps.ideal-logic.com.

Watercolors from Natural Pigments (in-person)

Price: $72, preregistration required Financial aid slots available on a first-come, first-served basis, REGISTER ONLINE This workshop will introduce the process of lake pigmentation, the creation of pigments from organic materials. Students will learn about common plants used for pigments as well as the process of creating watercolor paint from dried pigments. Each student will leave with two watercolor paints created during class. Class fee covers all necessary supplies. 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 themes of growth and decay—of our bodies, our culture, and our landscapes. Her work often… Event interval: Single day event. Campus location: Center for Urban Horticulture Complex (CUH). Campus room: Douglas Classroom. Accessibility Contact: urbhort@uw.edu. Presenter: Anneke Wilder. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_1d8a1bb1bdbd. Sunday, September 20, 2026, 10:00 AM – 1:00 PM. 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. Instructor Melany Vorass Herrera studied ethnobotany at Evergreen State College and holds a degree in environmental policy. For well over 20 years, her public policy work focused on such subjects as stormwater, hazardous waste, solid waste, environmental cleanup and… 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_2a433e85135a. Sunday, September 20, 2026, 1:00 PM – 4:00 PM. Discovery Park, North Parking Lot. For more info visit apps.ideal-logic.com.

Nature and Health Fall Community Dinner

Our quarterly community dinners welcome anyone with a curiosity about expanding access to green space to support health and well-being, environmental and health equity, people-nature reciprocity, and climate change resilience. Students, professionals, and community members from many different disciplines come together to explore new ideas, discuss policies and programs, and strengthen partnerships in the field of nature and health. The September 22 dinner features a talk from Amy Wagenfeld, PhD and Daniel Winterbottom, RLA, FASLA. Amy and Daniel will talk about their latest book, Therapeutic Gardens: Design for Healing Spaces second edition. Nature and Health Community Dinners include:A plant-based dinner, Drinks, Networking, Short talks from a wide variety of professionals, including researchers, community leaders, policy-makers, program managers, etc. Event interval: Single day event. Accessibility Contact: natureandhealth@uw.edu. Event Types: Diversity Equity Inclusion. Lectures/Seminars. Special Events. Event sponsors: REI Cooperative Action Fund. Tuesday, September 22, 2026, 6:00 PM – 8:00 PM. For more info visit events.uw.edu.

WSG Seaweed Office Hours

Arboretum Walking Tour

Class Cost: First Ticket $20; Additional Tickets $15 each Financial aid slots available on a first-come, first-served basis REGISTER ONLINE Arboretum walking 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. This educational tour is tailored for an adult audience, although minors are welcome. We will cover history, botany, and plant collections at the Washington Park Arboretum, highlighting plants and gardens of seasonal interest. Event interval: Single day event. Accessibility Contact: urbhort@uw.edu. Presenter: Catherine Nelson. Contact Information: urbhort@uw.edu. Ticket Link: https://apps.ideal-logic.com/uwbg?key=2WSB-TGY2T_K9KH-5PTF_a975a119e176. Saturday, September 26, 2026, 10:00 AM – 11:30 AM. Washington Park Arboretum. For more info visit apps.ideal-logic.com.