Hoyt Arboretum Friends (HAF) is a membership-based, nonprofit organization working in partnership with Portland Parks and Recreation to support Hoyt Arboretum.

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Fall Color Tours

Enjoy the highlights of the fall color season this weekend at Hoyt!

Saturday, October 22, 12pm - Public Tour
Please meet at the Visitor Center. Registration is not required. Recommended $3 donation/person.

Sunday, October 23, 1pm - Members Only
A special HAF members-only Fall Color Tour with Curator Martin Nicholson; please meet at the Stevens Pavilion for light refreshments before the tour.

No Ivy Day

Saturday, October 29
9-12 noon

Become a steward of our treasured natural areas! Join us on October 29, 2016 at Hoyt Arboretum, for Portland Parks & Recreation’s annual citywide effort to remove invasive ivy. Gather across the greater Portland area to show your support for our treasured local ecology!

Register here

12:00pm to 1:30pm

  • Party!  Celebrate after you work, from 12pm-1:30pm with raffles, food and family fun at three sites:
    • Forest Park (Lower Macleay entrance at 2960 NW Upshur)
    • Marquam Nature Park (SW Marquam St & Sam Jackson Park Rd., at the shelter area)
    • Mt Tabor Park (across from visitor center)


Broadleaf Evergreen Identification

Wednesday, November 9

It's very common for people to use the term ‘evergreen’ to refer to only conifers, but this distinction isn't exactly accurate. Many genera of broadleaves, too, have a species that have opted to retain their leaves year-round. Oaks, madrones, magnolias, hollies, and others all have examples of evergreen species. In this course, we're going to focus on identification of some of these broadleaf evergreen species, and discuss how this evolutionary strategy works and why these trees are becoming more and more important in the face of climate change and urbanization.

About the instructor: J. Casey Clapp is an Associate Consulting Arborist with Tree Solutions, Inc., and manages the Portland, Oregon office.  He specializes in tree identification, urban forest and individual tree management, tree diagnostics, risk assessments, and tree cones.  He holds a MS degree in Environmental Conservation with a focus in Forest Resources and Arboriculture (University of Massachusetts, Amherst) and a BS degree in Forest Management with a focus on Urban Forestry (Oregon State University).  He’s been involved in urban forestry and arboriculture since 2010. Casey has been studying tree biology and dendrology since 2007, and has presented at conferences across the nation and internationally.

Limited to 15 people. $15/member, $20/non-member. Registration is required. Sign up with Paypal below or call 503-823-1649.

Member / Non-Member

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