The Annual No Ivy Day is October 25, 2025!
For 2025 volunteer locations, please scroll down. Click on the location you are interested in for site-specific information and registration.
What is No Ivy Day?
No Ivy Day is a yearly event where Portland Parks & Recreation partners with organizations across the greater Portland area to host a variety of ivy removal events in several neighborhoods. In the afternoon we are hosting our first Know-Ivy crafting workshop to share knowledge about managing weedy introduced plants and get creative.
For more information, please email Monica Walker (Hescheles) at monica.hescheles@portlandoregon.gov or call/text 503-823-8367 or contact your site coordinators (see specific event information)
2025 No Ivy Day Locations
Click on each site to learn more and register.
N Portland:
- Pier Park - Cancelled
NE Portland:
- Rocky Butte - Volunteers needed
- Woodlawn Park - Cancelled
SE Portland:
- Leach Botanical Garden
- Mt. Tabor Park
- Indian Creek Natural Area - Volunteers needed
SW Portland:
- Hoyt Arboretum
- Marquam Nature Park
- Marshall Park - Volunteers needed
- River View Natural Area - Volunteers needed
- Terwilliger Parkway - Volunteers needed
- Woods Memorial Natural Area - Event full
NW Portland:
Greater Portland Area:
Know-Ivy Crafting Workshop:
Not ready to get out in the field or want to keep the fun going into the afternoon? Come learn more weedy introduced species, get creative and utilize readily available materials during our first Know-Ivy Crafting Workshop October 25th from 1-3pm. Separate registration required.
Learn more and register for Know-Ivy Crafting Workshop
Thank you to our site hosts!
A huge thank you to Friends of Pier Park, Leach Botanical Garden, Forest Park Conservancy, Tryon Creek Watershed Council, Friends of Rocky Butte, Hoyt Arboretum Friends, Mt. Tabor Weed Warriors, Westside Watershed Resource Center, Friends of Terwilliger, and Portland Parks & Recreation staff for hosting events.
Why remove ivy?
English and Irish Ivy grows out of control in our local ecosystems. Since it is not native to this area, it didn't evolve with wildlife that eats it or parasites that destroy it, and it survives through our relatively mild winters just fine. These ivies are a popular, fast-growing garden and landscaping plant, and birds love its tasty berries. For these reasons, ivy has been able to gain a strong foothold in our natural areas around Portland. English and Irish ivy are able to grow in dense carpets across the forest floor, taking resources from native plants that support wildlife. Invasively growing ivy also climbs trees, adding weight that can cause them to topple during storms. Invasively growing ivy has shallow roots that do a poor job of holding in soil, and this creates conditions for increased erosion that cloud our waterways and warm our streams and rivers so that aquatic species struggle or disappear. By removing ivy and planting native species, we give our native plants and our wildlife a fighting chance to survive and thrive in our beautiful and unique urban natural areas.
Interested in staying involved throughout the year?
Check out upcoming stewardship opportunities with Portland Parks & Recreation Natural Areas Stewardship Events.