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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Upcoming Events & Classes

Regularly-scheduled tours leave the Hoyt Arboretum Visitor Center every Saturday and Sunday at noon from April through October,

Parke Diem - Volunteer Opportunity

Friday, October 12
9am-12pm

Seize the day - and the trees! - by volunteering at Parke Diem at Hoyt Arboretum. Join other tree enthusiasts for a morning of trail work, invasive species removal, weeding, mulching and more to prepare the arboretum for the winter season. 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. This is a family-friendly volunteer opportunity.

Registration is required. Please sign up here

Questions? Please contact Becky at (503) 823-1649 or volunteer@hoytarboretum.org. 


Family Forest Day - Fall Color

Friday, October 12
10am-1pm
Free! 

Bring the family to Hoyt Arboretum for free drop-in nature and science hands-on activities. For ages 4 to 12, will run rain or shine.


Broadleaf Evergreens Workshop

Saturday, October 13
9am-12pm
$15/HAF member, $20/non-member

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: Casey Clapp is an avid plant enthusiast and Certified Arborist who specializes in tree identification, risk and health assessment, and diagnostics. Currently, Casey works for the City of Portland as a Tree Inspector and previously has worked as a consulting arborist across the region. He holds a Bachelor of Science in Forest Management and a Master of Science in Environmental Conservation.

This class is now full. Please email info@hoytarboretum.org to be added to the wait list.


Maple Tour Featuring Fall Color - Guided Tour

Saturday, October 13
12pm
$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. 


Fall Color Tour with Curator Nicholson (Members Only) - Guided Tour

Sunday, October 14
1pm

Hoyt Arboretum Friends members are invited to join curator Martin Nicholson for the annual fall color tour. 

 

Registration is not required; please meet at the Stevens Pavilion. 


Forest Birds Workshop

Saturday, October 20
9am-12pm
$15/HAF member, $20/non-member

Mature Pacific Northwest forests host birds that are uniquely adapted to live in different layers of the forest. This workshop will teach you which birds to expect in our coniferous, deciduous, and mixed forests, how to detect them by sight and sound, and which adaptations help them survive and thrive.

In this class, experienced birder Laura Whittemore will introduce you to the common birds of Pacific Northwest mature forests, such as kinglets, creepers, nuthatches, woodpeckers, and owls. Learn how to find and recognize these sometimes elusive species using location, behavior, plumage, and sound. We'll start with an indoor presentation, then you'll use your new awareness on a walk through the Arboretum to detect birds by moving slowly, listening carefully, and paying attention to habitat. 

About the instructor: Longtime birder and teacher Laura Whittemore loves to show beginners the tricks of the trade. She regularly teaches classes for Audubon Society of Portland and previously worked for Backyard Bird Shop, where she helped bird-feeding enthusiasts ID those confusing little brown birds. Laura holds a BA in Biology from Lewis and Clark College and has traveled in the US, Australia, South Africa, and Antarctica in search of birds.

This class is now full. Please email info@hoytarboretum.org to be added to the wait list.


Guided Tour with Jim Gersbach

Saturday, October 20
12pm
$3 suggested donation, HAF members free!

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


Guided Hike

Saturday, October 20
1-3pm

New to Portland or new to exploring the trail system at the arboretum? Learn the trails, see the arboretum's highlights - including beautiful fall foliage! - and meet fellow nature lovers on this guided hike. Hikers should come prepared for the weather, including appropriate footwear and rain jackets if needed. This hike will about 4 miles. Registration is not required; please meet at the Visitor Center at 1pm.


 

Northwest Native Conifers - Guided Tour

Sunday, October 21
12pm
$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. 


Saturday Crew - Volunteer Opportunity (No Ivy Day)

Saturday, October 27
9am-12pm

Volunteer for the last Saturday Crew of the season on No Ivy Day! Volunteer crews are incredibly important to maintaining the arboretum’s 189-acre grounds, particularly in removing invasive species like English ivy. Stewardship crews take place rain or shine; volunteers should come dressed for the weather and wear long pants and sturdy, close-toe shoes. No previous experience is required; training, tools and gloves are provided. 

Registration is required; please sign here

Questions? Please contact Becky at volunteer@hoytarboretum.org or (503) 823-1649.


Lichens Workshop

Saturday, October 27
9am-12pm
$15/HAF member, $20/non-member

Lichens are a fascinating and essential part of Pacific Northwest ecosystems. In this workshop, we will dive into the exciting world of lichens with PSU biologist Dr. Hannah Prather. This workshop will cover the basics of what lichens are, the important functions they offer in an environment, and will introduce the beginnings of lichen identification. We'll start with an indoor presentation, then you'll use your new lichenology skills on a walk through the Arboretum to observe different macrolichen species.

About the instructor: Dr. Hannah Prather is a researcher and biologist at Portland State University. Her research on lichen and bryophyte ecology has taken her from the tops of towering trees in the Pacific Northwest, all the way to the polar landscape of Antarctica. She regularly leads local lichen hikes with the Forest Park Conservancy and in her spare time enjoys hiking, travelling and climbing trees.

Limited to 15 participants; registration is required. Please sign up via Paypal below, or call (503) 823-1649. 

Member / Non-Member

 Pacific Northwest Ethnobotany - Guided Tour

Saturday, October 27
12pm
$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. 


Maple Tour Featuring Fall Color - Guided Tour

Sunday, October 28
12pm
$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. 


Family Forest Day - Halloween Edition

Monday, October 29 
10am-1pm
Free! 

Bring the family to Hoyt Arboretum for free drop-in nature and science hands-on activities. For ages 4 to 12, will run rain or shine.


Hike n' Stitch

Saturday, November 3
9am-12pm
$30/HAF member, $35/non-member

Join illustrator and embroider, Amy L. Frazer for a fun morning of Hike n’ Stitch at Hoyt Arboretum. In this workshop you will have an introductory lesson in embroidery before getting started on an outdoor holiday ornament project inspired by the the beauty of Hoyt Arboretum. All the supplies you will need are included and you will get to take your kit home! Even if you've never picked up a needle and thread, you'll enjoy this class and come away with a beautiful ornament you can be proud of and say, "I made this!"

About the instructor: Amy L. Frazer is an illustration, surface pattern and product design professional focused on creating fresh artwork for a wide range of surfaces including textiles, home decor, stationary, giftware and publications. Through her work she tries to capture the beauty of the world around us and embellish it with her personal mark making. Amy works out of her studio in beautiful Portland, OR.

Limited to 12 participants; registration is required. Please sign up via Paypal below, or call (503) 823-1649. 

Member / Non-Member

Botanical Illustration with Watercolor

Saturday, November 10
11am-2pm
$20/HAF member, $25/non-member

Whether you are a budding artist wanting to learn about botany or a plant lover eager to hone your botanical illustration skills, this class is for you! Instructor Ruth Williams will teach students the basics of botanical illustration so that they can complete one or two watercolor illustrated greeting cards. Bring your own samples, or draw from Hoyt's extensive library of botanical texts.

About the instructor: Ruth Williams is an arborist and plant enthusiast with degrees in Horticulture and Landscape Architecture from UC Davis. She has been drawing and painting plants for 16 years. She teaches botanical illustration and dormant plant ID at Hoyt. She lives in Southeast Portland with two heritage California Bay Laurels, her husband, and seven chickens.

Limited to 12 participants; registration is required. Please sign up via Paypal below, or call (503) 823-1649. 

Member / Non-Member


Nocturnal Tour

Saturday, November 10
5-7pm
$3/HAF member, $5/non-member

Explore Hoyt after dark on this special nocturnal tour of Hoyt Arboretum. Participants should dress for the weather and wear sturdy shoes appropriate for walking on trails. Please bring a handheld flashlight or headlamp (spare lights will be available). Enjoy warm drinks in the classroom after the tour!

Limited to 15 participants (recommended for ages 10 years and up); registration is required. Please sign up via Paypal below, or call (503) 823-1649. Inclement weather will cancel the tour.  

Member / Non-Member
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