Planting at Lake Sammamish State Park

2025 Tree Planting Celebration. Volunteers helped plant nearly 1,500 trees to help improve the riparian habitat along Issaquah Creek, supporting the in-stream restoration work that happened this summer.
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Spaces Available: 29
Date & Time
October 16, 2026 | 10:00 am – 1:00 pm
Location
Pickering Ditch
Event Overview

Join the Greenway for planting at Lake Sammamish State Park! We'll be planting native trees and shrubs to help create a resilient ecosystem and wetland complex.

Difficulty
Easy to Moderate
Age Restriction
Open to all ages. Participants under 13 years old must be accompanied by an adult.
What to Bring

For safety, volunteers are required to wear:

  • Long pants (we’ll be working with tools, so no shorts!)
  • Sturdy, close-toed shoes (absolutely no sandals)
  • Gloves (provided)

In addition, we recommend that participants bring:

  • Warm layers, especially during the fall, winter, and spring
  • Rain gear
  • At least one full water bottle
  • Small daypack for snacks, extra layers, etc…
Driving Directions

From I-90 eastbound, take exit 15. Turn left on NW 17th. Continue on as rd becomes NW Sammamish Rd (road bends to the right). You'll pass the parking lot on your left, but you will have to continue down the road in order to turn around. Make a U-turn left at 10th Ave into the Animal Hospital parking lot (or right into the Pickering Shopping Complex) to turn around. Heading back the way you came on NW Sammamish, turn right into the small soccer field parking lot.

Look for Greenway Event signs.

Google maps: https://goo.gl/maps/e7RfujNjtHUb4UJA8

Google Map

[47.552448, 122.054025]