Earth Day

Earth Day at the Arboretum

Special, 90th-Birthday Edition

Saturday, April 20, 2024

  • 9 AM to 12:30 PM ~ Volunteer Work Service Event
  • 11:30 AM to 2:30 PM ~ Food Truck at Visitors Center
  • Noon to 4 PM ~ Pollination Station at Visitors Center
  • 1 PM ~ Free Cupcakes for First 90 People (Visitors Center)
  • 2 to 4 PM ~ Free Tram Rides on Arboretum Loop Trail

To celebrate the Arboretum’s 90th birthday, we’re enhancing this year’s Earth Day work service event with free tram rides, a pollinator education station, and more (see below)!

Click the blue button to register as an individual, or with your family/friends.

Corporate group sign-ups are now full for April 20! But we’d love to host an Arboretum work-service event for your company on another day. To arrange a date/time, email us at


Give back to public lands and help restore the park!

  • Pre-registration required.
  • Volunteers must be aged 15 or older to participate.
  • Meet at Crabapple Meadow at 9 a.m.
  • Enjoy a complimentary cupcake!

Each year, the Arboretum Foundation, UW Botanic Gardens, and Seattle Parks and Recreation co-host an Earth Day community and volunteer event. Help restore the Arboretum by removing invasive ivy and blackberry in natural areas, and by mulching and weeding the plant collections!

Volunteer team from Amazon volunteers to remove invasive species at the Arboretum for Earth Day in 2019

WHERE TO MEET: Washington Park Arboretum, 2300 Arboretum Drive East, Seattle, WA 98112. Arrive at the Graham Visitors Center parking lot. Check in is 9 a.m. at Crabapple Meadow.

PARKING DETAILS: At the Graham Visitors Center. our parking staff and signage will direct you to the correct parking area.

CHECK IN & SITE ASSIGNMENT: After arriving at the Visitors Center, please follow the directions from staff/signs to Crabapple Meadow, where you will check-in. There will be a large group welcome, and then volunteers will meet their site leader and team and walk out to their worksites together.

BRING WITH YOU: Please bring a bottle of water to stay hydrated, food to help sustain you, and gloves to work in*. Please wear long pants, bring a layer or a raincoat, and closed-toe shoes that you don’t mind getting dirty. Please come dressed for the weather; this event will happen rain or shine!

PROVIDED: Tools and training.


  • Stay home if you have symptoms or test positive for Covid-19.
  • Bring your own water bottle (full or empty), and snacks for the work day.
  • Facemasks are not required, but you may wear one if you choose.
  • Bring work gloves, if you can. *There will be some available if you are unable to bring a pair.
  • Volunteers may need to walk 5 to 15 minutes out to their specific worksite and may also need to walk 5+ minutes to the nearest restroom.
  • The work on the Arboretum grounds is very physical, and the tasks may involve navigation across uneven ground.

QUESTIONS? Contact our Volunteer Department at or phone at 206-325-4510.

Volunteer team from Amazon volunteers to remove invasive species at the Arboretum for Earth Day in 2019


Graham Visitors Center

  • Learn about pollinators from UW Botanic Gardens educators.
  • Meet with local community groups that specialize in sustainability.
  • Free cupcake for the first 90 visitors (1 p.m. on south terrace of the Graham Visitors Center)!
  • Buy lunch at local food truck Yummy Gyros (serving from 11:30 a.m. to 2 p.m.) and enjoy a picnic in the Arboretum!


Hop-on Hop-off Tram Rides Around the Arboretum Loop Trail

To celebrate Earth Day and the Arboretum 90th year, UW Botanic Gardens will run their electric tram around the two-mile Arboretum trail from 2 to 4 p.m. Members of the public are welcome to hop on and hop off at any location around the loop, at no charge.

Event Partners

Arboretum Foundation Logo seattle parks and recreation logo
Volunteer team from Amazon volunteers to remove invasive species at the Arboretum for Earth Day in 2019
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