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2040 84th Avenue SE
Mercer Island, WA 98040
Phone: 206.275.7609
Fax: 206.275.7868
Email: miparks@mercergov.. . .
Hours: 8:30 am - 5:00 pm
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Forest Stewardship and Adopt-a-Park

Restoration Event Volunteers

Program Overview

Mercer Island boasts 350 acres of beautiful forested parks and open spaces that provide invaluable ecosystem, human health, and economic benefits to our community. Invasive plants such as English ivy and Himalayan blackberry threaten the existing forest canopy, suppress the next generation of trees from establishing, and decrease habitat quality.

Mercer Island Parks and Recreation works with professional contractors, non-profit partners Mountains to Sound Greenway and EarthCorps, and community volunteers to remove invasive plants and replant with native trees and shrubs. Together we ensure the long-term sustainability of our invaluable open spaces for current and future generations.

Tree Canopy Coverage Assessment (2018) Summary
Tree Canopy Coverage Assessment (2018) Full Report


2019 forest stewardship calendar

Weekend Community Events

Nature lovers of all ages are invited to connect with nature and have fun in the forest! Volunteers remove invasive plants, spread mulch, and plant native trees and shrubs. We provide all tools and supplies. Volunteers should dress for the weather and bring a water bottle. Events are hosted by our partners at EarthCorps and Mountains to Sound Greenway. Check out our Forest Stewardship Events CALENDAR for an event near you and sign up today!

Service Learning and Team Building
We work with private groups such as Boy and Girl Scout troops, school clubs, companies, and religious communities to create an event of up to 100 volunteers. Projects include all tools, logistical help and on-site guidance needed to foster a great sense of team work, community, and care for our forest resources.

Mercer Island Forest Stewards
Do you love the outdoors and want to learn about forest restoration? Consider becoming a Forest Steward at your local park or open space. Our Natural Resources staff provide volunteers with training, tools, and ongoing support. Training includes information about native plant identification, invasive plant identification and removal, native plant installation, and volunteer event coordination. Forest Stewards may work independently, making their own schedule, or lead volunteer events for friends and neighbors.

Learn how you can connect with nature and create healthy forests! Contact the Parks Natural Resources Specialist at (206) 275-7882 or

Washington Native Plant Society
King County Native Plan Resources

King County Noxious Weed Board
Learn more about the City's limited use of herbicide.

Mountains to Sound Greenway




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