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 are 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

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

Phone: 503-655-8631 

Email: Clackamas County Master Gardeners

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

Multnomah County Master Gardener Hotline

Sponsored by: West Multnomah Soil and Water Conservation District

Hours: 10:00 am - 2:00 pm, Monday through Friday

Phone:  503-445-4608 

Email: Multnomah County Master Gardeners 

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

Washington County Master Gardener Hotline

Washington County Extension Office

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

Phone: 503-821-1150

Email: Washington County Master Gardeners

Address: OSU Extension Service Education Center, 1815 NW 169th Place, Suite 1000, Beaverton, OR 97006

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