Ask a Master Gardener

Metro area Master Gardener office and hotlines

The metro area Master Gardener provides answers to questions about gardens and household pests in Clackamas, Multnomah, and Washington Counties in Oregon.

If you outside of this geographic area, please find your local Cooperative Extension office.

There are also many great online tools for investigating plant problems and household pests.


Clackamas County Master Gardener Hotline

Clackamas County Extension Office; Home Gardening Program

Phone: 503-655-8631

Email: Clackamas County Master Gardeners

Address: 200 Warner-Milne Rd. Oregon City, OR 97045

Hours:9:00 am - 12:00 noon and 1:00 - 4:00 pm, Monday through Friday

Multnomah County Master Gardener Hotline

Sponsored by: West Multnomah Soil and Water Conservation District

Phone:  503-445-4608

Email: Multnomah County Master Gardeners

Address: 2701 NW Vaughn St. Suite 450  Portland, OR 97210

Hours: 10AM - 2PM Monday - Friday

Washington County Master Gardener Hotline

Washington County Extension Office; Home Gardening Program

Phone: 503-821-1150

Email: Washington County Master Gardeners

Address: 155 N. First Ave., Suite #200, Hillsboro, OR  97124

Hours: 9AM -12PM and 1PM - 4PM Weekdays