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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Ancient Trees - Guided Tour

Saturday, August 12
12-1:30pm

$3 suggested donation, HAF members free!

Learn about Hoyt Arboretum's oldest tree species and some of the oldest living specimens, including a visit to our sequoia grove with tour guide Ken Denniston. 

Registration is not required; please meet at the Visitor Center. 


 

Seasonal Highlights - Guided Tour

Sunday, August 13
12-1:30pm
$3 suggested donation, HAF members free!

Explore the arboretum's trees and trails with tour guide Tedde McMillen, enjoying the seasonal highlights of the summer. Registration is not required; please meet at the Visitor Center.


 

Rare, Threatened and Unusual Conifers - Guided Tour

Saturday, August 19
12-1:30pm
$3 suggested donation, HAF members free!

Conifers are an ancient and diverse group of trees. Join Certified Arborist Julian Lawrence as you explore rare and unusual conifers from around the world. Hoyt Arboretum plays an important part in conservation of threatened species.

Registration is not required; please meet at the Visitor Center.


 

Shinrin-yoku (Forest Bathing) - Guided Tour

Friday, August 25
12-1:30pm
$3 suggested donation, HAF members free!

Forest Bathing is an activity of strolling/walking in a forest for therapeutic purpose. Experience this new trend in Hoyt Arboretum and learn about the cultural background and the health effects of the activity. Tour Guide Kyoko Donaldson studied Environmental Studies and Horticultural Therapy in New York before relocating to the Pacific Northwest. 


 

Saturday Crew

Saturday, August 26
9am-12pm
Volunteer opportunity! 

Saturday Crew volunteers assist Hoyt Arboretum's horticulturist with trail maintenance, invasive species removal, special projects and more. Volunteers should come dressed for the weather and be prepared to get dirty in a pair of long pants and sturdy, closed toe shoes. Training, tools and gloves are provided; no previous experience is necessary. Registration is required. Please sign up here.


Dog Days of Summer - Guided Tour

Saturday, August 26
12-1:30pm
$3 suggested donation, HAF members free!

Join professional arborist Logan Collier on a tour of summer highlights at Hoyt.

Registration is not required; please meet at the Visitor Center.


Tall Tree Tales - Guided Tour

Saturday, September 2
12-1:30pm
$3 suggested donation, HAF members free!

Join master storyteller Cleve Friedman for an entertaining and educational tour through the tall trees of Hoyt Arboretum.

Registration is not required; please meet at the Visitor Center.


Saturday Crew

Saturday, September 9
9am-12pm
Volunteer opportunity! 

Saturday Crew volunteers assist Hoyt Arboretum's horticulturist with trail maintenance, invasive species removal, special projects and more. Volunteers should come dressed for the weather and be prepared to get dirty in a pair of long pants and sturdy, closed toe shoes. Training, tools and gloves are provided; no previous experience is necessary. Registration is required. Please sign up here.


 

Pacific Northwest Native Plants - Guided Tour

Sunday, September 10
12-1:30pm
$3 suggested donation, HAF members free!

Explore the arboretum's trails with tour guide Brenda Hamilton, with a focus on Pacific Northwest native plants. Registration is not required; please meet at the Visitor Center. 


 

Native Conifers of Northwest Oregon

Saturday, September 16
9am-12pm
$15/member, $20/non-member

Expand your knowledge of native conifers with Instructor Ken Denniston (author of nwconifers.com). Ken will help you identify the local conifers of northwest Oregon. The workshop will include classroom instruction and, weather permitting, a tour of native conifers in Hoyt Arboretum. Learn easy ways to distinguish each conifer species using both photos and specimens. Class attendees will receive a handy cheat sheet to identify native conifers with 99% accuracy.

Limited to 15 people. $15/member, $20/non-member. Registration is required. Sign up below via email or call (503) 823-1649. 

Member / Non-Member


Maple Collection & Seasonal Highlights - Guided Tour

Saturday, September 16
12-1:30pm
$3 suggested donation, HAF members free!

Do you love maple trees? Are you considering adding a maple tree to your yard? Did you know there are 128 species of maples and that Hoyt Arboretum's collection includes around 50 species? Come enjoy our amazing variety of maples and other seasonal highlights!

Registration is not required; please meet at the Visitor Center.


 

An Arborist's View of the Arboretum - Guided Tour

Saturday, September 23
12-1:30pm
$3 suggested donation, HAF members free!

Join professional arborist Logan Collier to learn about his unique perspective on Hoyt Arboretum's living tree collection. 

Registration is not required; please meet at the Visitor Center.


 

Saturday Crew

Saturday, September 30
9am-12pm
Volunteer opportunity! 

Saturday Crew volunteers assist Hoyt Arboretum's horticulturist with trail maintenance, invasive species removal, special projects and more. Volunteers should come dressed for the weather and be prepared to get dirty in a pair of long pants and sturdy, closed toe shoes. Training, tools and gloves are provided; no previous experience is necessary. Registration is required. Please sign up here.


 

Northwest Native Conifers - Guided Tour

Saturday, September 30
12-1:30pm 
$3 suggested donation, HAF members free!

Tour guide Ken Denniston will lead a guided tour that focuses on the conifers of the Pacific Northwest. Learn to identify the native conifers of Oregon and Washington!

Registration is not required; please meet at the Visitor Center


 

Maple Collection & Seasonal Highlights - Guided Tour

Saturday, October 7
12-1:30pm
$3 suggested donation, HAF members free!

Do you love maple trees? Are you considering adding a maple tree to your yard? Did you know there are 128 species of maples and that Hoyt Arboretum's collection includes around 50 species? Come enjoy our amazing variety of maples and other seasonal highlights!

Registration is not required; please meet at the Visitor Center.


Rare, Threatened and Unusual Conifers - Guided Tour

Saturday, October 14
12-1:30pm
$3 suggested donation, HAF members free!

Conifers are an ancient and diverse group of trees. Join Certified Arborist Julian Lawrence as you explore rare and unusual conifers from around the world. Hoyt Arboretum plays an important part in conservation of threatened species.

Registration is not required; please meet at the Visitor Center.


 

Fall Color Tour

Saturday, October 21
12-1:30pm
$3 suggested donation, HAF members free!

Just in time for peak fall color, enjoy a walk through the arboretum to see some incredible color! Join tour guide Ruth Williams for a walk through the arboretum to see our glorious maples, sumacs, tupelos, and sourwoods to name a few.

Registration is not required; please meet at the Visitor Center. 


Saturday Crew - No Ivy Day

Saturday, October 28
9am-12pm
Volunteer opportunity! 

Saturday Crew volunteers assist Hoyt Arboretum's horticulturist with trail maintenance, invasive species removal, special projects and more. Volunteers should come dressed for the weather and be prepared to get dirty in a pair of long pants and sturdy, closed toe shoes. Training, tools and gloves are provided; no previous experience is necessary. Registration is required. Please sign up here.


 

Pacific Northwest Ethnobotany - Guided Tour

Saturday, October 28
12-1:30pm
$3 suggested donation, HAF members free!

Join environmental educator Roland Begin for a walk to learn about how a variety of locally native trees and plants have been used for millennia by indigenous peoples as resources for food, medicine, tools, clothing and much more. 

Registration is not required; please meet at the Visitor Center. 


 

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