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

Sign up for Hoyt E-news Subscribe

Hoyt Holiday Sales

Tuesday, December 20

20% discount for all HAF members!

Your $35 purchase between November 19 and December 31 entitles you to a complimentary transferable first-time membership – and your member discount!

Saturday in the Trees MLK Weekend

Saturday, January 14

Join us as we contribute to the MLK Jr. Day of Service with some outdoor work. Work will include some brush removal, invasive species removal, and possibly some weather related tasks. It should be awfully fun and a great way to get dirty with some fine folks. 

All tools, work gloves, and materials will be provided. Please wear long pants, long-sleeved shirt, and sturdy footwear; bring water and snacks. To register, sign up here

Winter Plant Identification

Saturday, January 21
Beginners: 10am-12pm
Intermediate: 1-3pm

Learn all about winter plant identification with instructor Ruth Williams. A beginner and intermediate class will be available - sign up for a single session or both! Class size is limited to 15 students; registration is required. Please sign up below with Paypal, or call 503-823-1649.

Class 1: Introduction to Winter Plant Identification

Have you ever gazed at the frost covered branches of a tree in winter and wondered, "What kind of tree is that?" It can be tricky to identify trees without their familiar leaves, flowers, and fruits. Join us to learn how to identify dormant trees based on twigs and other clues. The course will cover 10 common landscape trees such as ash, maple, and pear at the family level. A classroom and field component are included. Please dress warmly. The beginning class serves as an appropriate introduction to the afternoon Intermediate Plant ID class.

Member / Non-Member

Class 2: Intermediate Winter Plant Identification

If you know some basic botanical anatomy and have some familiarity with a few plant families, you are invited to take your plant ID skills to the next level with this intermediate plant ID class. We will focus on trees in the rose family, and how to tell one genus from another, including apple, pear, cherry and plum. The classroom session will be 40 minutes to emphasize field ID, so please dress warmly.

Member / Non-Member

Sign up for BOTH classes below.
Member / Non-Member
About the instructor: Ruth Williams is a consulting arborist and tree storyteller who has been a Hoyt volunteer docent for 5 years. She lives in Southeast Portland with two huge California Myrtles, five chickens, and a duck.
Support Hoyt Arboretum by becoming a member