Clackamas County Master Gardeners


Master Gardeners™ are trained volunteers, educated through OSU Extension Service to offer the local community Reliable, Relevant and Reachable gardening information and education opportunities.

Reliable: our gardening advice and education is science-based.

Relevant: customized information for your gardening situation.

Reachable: call us on the phone, email us a question, or visit with us at markets or gardens in your community.

Free Lectures

We hold free lectures on the 2nd Monday of each month (except July and August) at the Milwaukie Center (5540 SE Kellogg Creek Drive in Milwaukie). Lectures are open to the public and start at 7 p.m.

January 8, 2018

Lessons from the Hoyt Arboretum - Fred Nilsen, Arboretum Director retired

Fred Nilsen spent his career working for the City of Portland Parks and Recreation Bureau, becoming City Arboriculturist in 1986, and managing Hoyt Arboretum and Forest Park. Under Nilsenʼs leadership, Hoyt Arboretum significantly expanded its tree collections. Parks and volunteers crews built miles of trail in Forest Park, Marquam and other natural areas.  Hours of work went into removal of invasive species and, together with Friends of Trees volunteers, thousands of trees were planted.

Since retiring, Fred has continued his involvement with Friends of Trees and Leach Botanic Garden. The focus in Fred’s own garden is on collections of Trilliums, Snow Drops, Epimediums, Daphnes and some unique plant specimens.

MG Education Credit

Clackamas County Master Gardeners are the folks who put on the annual Spring Garden Fair, bringing together over 7,000 gardeners with over 150 plant and garden-art vendors.

Oregon State University Extension Service offers educational programs, activities, and materials without discrimination based on age, color, disability, gender identity or expression, marital status, national origin, race, religion, sex, sexual orientation, or veteran's status. Oregon State University Extension Service is an Equal Opportunity Employer. In reference to publications, events, or activities: Publications will be made available in accessible formats upon request. Please call 503-655-8631 for information. If you have a physical disability that requires special considerations in order for you to attend the event/activity, please notify the metro Master Gardener program at 503-655-8631.