Seize the Trees for Parke Diem Day 1


Cause Areas


Fri Oct 14, 2016, 09:00 AM - 12:00 PM


4000 SW Fairview BlvdPortland, OR 97221


Join other tree enthusiasts for 2 days of trail work, re-potting plants, planting, ivy and blackberry removal, and other tasks. All volunteers will get a tee shirt and a swag bag! Most importantly, we’ll be participating in the largest park wide volunteer event in the country and the Arboretum will be trying to host the largest group in the system!

Sign up here:

Not sure what the Arboretum is? Here's some info!

Mission of Hoyt Arboretum Friends: To maintain and improve Hoyt Arboretum and its collection for all people through advocacy, resources, awareness and education.

Hoyt Arboretum by the Numbers:
Started April 25th, 1928
187 acres with 12 miles of trails
Over 2,000 species from 6 continents
63 Endangered Species (IUCN listed)
Volunteers contributed nearly 8,000 hours to the Arboretum in 2013 and we're on a path to surpass that this year!

Top Five Ways Hoyt is Unique
Curation - Every species is carefully curated, labeled, and researched. We have information on the background of every tree in the collection and it's all available online in a public database.
Conservation - We house 63 endangered and threatened species and play a part in their global conservation strategies.
Global Representation - We have species from 6 continents (all but Antarctica)
Historic Value - Species are arranged evolutionarily, so you'll find flowering trees in one area and coniferous trees in another. This is an historically significant way to organize species is indicative of the period in which the Arboretum was created.
Scientific Value - We are a peer reviewed scientific resource, primarily accessed through our database and our herbarium.

Fun Facts
Our Dawn Redwood - once thought to be an extinct species - was the first to set cones after its rediscovery in China. The cones set in 1952. The Arboretum now houses 22 Dawn Redwoods (Metasequoia glyptostroboides).

In case you were wondering, "Who is Hoyt?," Ralph Hoyt was a civic leader in Portland in the early 1900s. He served as President of the Rose Festival and Chairman of the Multnomah County Commission between 1920 and 1924. He was instrumental in the formation of the Arboretum and Washington Park.

Each entry to the Arboretum has an Incense Cedar, a Dawn Redwood, and a Magnolia or Rhododendron.


  • Gardening
  • Horticulture

Good Match For


Requirements & Commitment

  • 3 hours
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