Volunteers working together at a 300Trees planting event

Volunteer

Help us improve King County!

With a challenge this big, there are abundant opportunities for volunteers of every age, race, gender, and skill level. Fill out our volunteer form and let’s talk!

All of our activities qualify for school service hours.

Specific volunteer activities

Spring Tree Giveaway

Help us with our Spring Tree Giveaway. Volunteers greet residents, help carry trees, direct traffic, and keep the event running smoothly across the weekend.

Sammamish High School tree care

We continue to care for and improve Bellevue’s newest community forest every year. In 2026 we plan to expand our understory plantings there.

Planting events

We partner with schools, houses of worship, civic organizations, and city and county agencies on planting projects throughout the year.

The form below goes straight to us — tell us what interests you and we will be in touch. Prefer email? Write to info@300trees.org and we will add you to the volunteer list.

A group of 300Trees volunteers standing together at a planting event

Volunteer form

Check any number of volunteer interests