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

Birding 101

Saturday, March 3
9am-12 pm
$15/member, $20/non-member

Birds are everywhere you look, but how to figure out which one is which? This workshop takes the mystery out of bird observation and identification by giving you the tools to see the whole bird—not just its color, but its shape, size, pattern, behavior, and more.

In this class, longtime birder and teacher Laura Whittemore will introduce you to the questions you should ask when faced with a mystery bird. During a slide presentation of local common species, you'll learn to see beyond a bird's color and consider other physical and behavioral characteristics that will tell you about a bird's identity and life history. Use your new awareness on a walk around Hoyt Arboretum as you learn to detect birds by moving slowly, being patient, and using your ears and eyes.

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 or call (503) 823-1649 to be added to the wait list. 


Saturday Crew -- Volunteer Opportunity

Saturday, April 7, 9am-12pm

While many places celebrate Arbor Day and Oregon celebrates Arbor Week, at Hoyt Arboretum we celebrate our global collection of trees throughout the entire month of April. Help to spruce up the arboretum’s trees and trails with a variety of hands-on stewardship projects throughout the month. 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 up here.

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


Invasive Rubus Community Science Project -- Volunteer Training

Thursday, April 12, 10-11am

Non-native Rubus (blackberry) is widespread in the Pacific Northwest and causes negative impacts to native habitats. This new community science project, led by Hoyt Arboretum staff, will survey the presence of four non-native Rubus species in select Portland parks and natural areas throughout the city. The research will help with the early detection of a relatively new invader to northern Oregon, Rubus vestitus, and inform invasive Rubus management and control strategies.

A training session for Invasive Rubus Community Science volunteers is scheduled for Thursday, April 12 from 10-11am. During this training, volunteers will learn to identify the four invasive Rubus species, choose their assigned parks or natural areas, and learn to collect data and record their observations. For more information or to sign up, please email volunteer@hoytarboretum.org or call (503) 823-1649.


Botanical Illustration Workshop

Saturday, April 14
11:30am-2:30pm
$20/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 people. Registration is required. Please sign up via Paypal below, or call (503) 823-1649. 

Member / Non-Member


Earth Day Crew -- Volunteer Opportunity

Friday, April 20, 9am-12pm

While many places celebrate Arbor Day and Oregon celebrates Arbor Week, at Hoyt Arboretum we celebrate our global collection of trees throughout the entire month of April. Help to spruce up the arboretum’s trees and trails with a variety of hands-on stewardship projects at this special Earth Day crew. 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 up here.

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


Rosaceae Workshop

Wednesday, April 25
9am-12pm
$15/member, $20/non-member

It's the perfect season to learn about the Rose family, which numbers over 115 genera and 3,200 species! It includes both beautiful ornamentals (roses, flowering cherries) as well as several of our most popular fruit trees (apples, pears, plums). In this workshop led by Mandy Tu, Hoyt Arboretum’s Plant Taxonomist & Herbarium Curator, we will impart how to distinguish members of the rose family and go deeper in explaining and recognizing the botanical differences in flowers and fruits between several members of the woody rose family (including Prunus, Malus, Pyrus, Sorbus, etc.). We will also take a short walk in the Rose collection of the arboretum to look at and closely examine flowers and fruits, so wear comfortable shoes and dress appropriately for the weather.

About the instructor: Dr. Mandy Tu is the Plant Taxonomist & Herbarium Curator at the Hoyt Arboretum. In this position, she is responsible for collecting voucher specimens and verifying the identity of the trees within the arboretum and is often asked to identify plants by natural area managers in the Portland region. She has a B.S. in Botany from the University of Washington and a Ph.D. in Plant Biology from the University of California at Davis. Mandy has taught many plant identification courses and workshops for botanical professionals and plant enthusiasts.

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

Member / Non-Member

 


Arbor Day Crew -- Volunteer Opportunity

Friday, April 27, 9am-12pm

While many places celebrate Arbor Day and Oregon celebrates Arbor Week, at Hoyt Arboretum we celebrate our global collection of trees throughout the entire month of April. Help to spruce up the arboretum’s trees and trails with a variety of hands-on stewardship projects at this special Arbor Day crew. 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 up here.

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


Saturday Crew -- Volunteer Opportunity

Saturday, April 28, 9am-12pm

While many places celebrate Arbor Day and Oregon celebrates Arbor Week, at Hoyt Arboretum we celebrate our global collection of trees throughout the entire month of April. Help to spruce up the arboretum’s trees and trails with a variety of hands-on stewardship projects throughout the month. 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 up here.

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


Mushroom Identification Workshop

Friday, May 4
9am-12pm
$15/member, $20/non-member

The Pacific Northwest is home to a wealth of fascinating fungi. If you've ever been curious about how to identify the mushrooms you see, here is your chance! In this class, mushroom enthusiast and avid forager Leah Bendlin will teach the basics of mushroom identification, from key physical features, to habitat and ecological roles. Bring in your own finds for guided practice applying ID processes following the presentation. We will also take a hike in the arboretum to find mushrooms in their natural habitats.

About the instructor: Leah grew up in the midwest with nature loving biologist parents who taught her how to forage for edible plants. Later, she moved to the Pacific Northwest, and a friend took her out one day for a chanterelle hunt. She was fascinated not only by the bounty of chanterelles that year, but also by the abundance of other mushrooms that she had somehow never noticed before. After asking friends more about mushroom identification and coming up with dead ends, she set out to teach herself. A chance encounter soon became a life passion. Leah became obsessed with mushroom taxonomy and all the facets that go into the hunt, learning to read the land for signs of treasure. In 2015, she was elected to the board of directors of the Oregon Mycological Society, where she currently also serves as a teacher, speaker and identifier. After seven years of intense study, she now takes every opportunity possible to share the love of fungi with others and inspire them to begin their own journeys.

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

Member / Non-Member
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