We provide research based information and educational programs for the public.
The purposes of the Yamhill Master Gardeners is:
to enhance and supplement the Oregon State University Home Horticulture Program (Master Gardener Program) in cooperation with the Yamhill County Extension Service
to assume responsibility for performing special tasks and engaging in activities related to the program
to promote a wide dissemination to citizens of information available as
06/17/2026
We have booths staffed with Master Gardeners on Wednesday in Newberg and Thursday in McMinnville!
Bring your kids by for an interactive take home garden themed craft. Ask your questions while the kids create!
Newberg - 4pm-8pm 116 S College St, Newberg, OR 97132 - Weekly on Wednesdays
McMinnville - 12pm-6pm Cowls between 1st-2nd - Weekly on Thursdays
Do you have any of these plants in your garden?
Share a photo with us!
If you are curious about plant identification, you can visit us anytime during business hours at the McMinnville location OSU Extension Center.
2050 NE Lafayette Ave McMinnville OR 97128
06/08/2026
Do you have garden supplies or tools you aren't using anymore?
Consider donating them to the McMinnville Community Garden Garage Sale!
06/03/2026
Insect pollinators include many more species of insects than just honey bees. Native bees are also important pollinators, in addition to many species of beetles, butterflies, moths and flies. These insects provide ecosystem services by spreading the pollen among different plants of the same species, helping them complete their life cycles by producing seed.
To learn more please visit this article https://extension.oregonstate.edu/catalog/pnw-550-encouraging-beneficial-insects-garden
OR
Visit the Yamhill County Master Gardeners at the OSU extension center
2050 NE Lafayette Ave, McMinnville, OR 97128
05/29/2026
Curious what’s eating your leaves? Visit us weekdays at the OSU Ext. Office in McMinnville at 2050 NE Lafayette Ave, or call (503) 434-7517 to find out more!
05/18/2026
Bring us a soil sample and we’ll test your soil’s pH for FREE!
Do you have aphids in your garden and aren’t sure what to do about them? Send your questions to our extension service by going to https://extension.oregonstate.edu/mg/get-your-gardening-questions-answered
05/07/2026
Wendy’s inspiring curiosity with the next generation of gardeners while Phil and Kathy are on standby waiting to take your questions! We’ll be here until 8pm at the Newberg Wednesday Market!
05/06/2026
Newberg’s Wednesday Market has opened, and you know what that means…Yamhill County Master Gardeners will be at our booth from 4-8pm ready to answer your garden questions, or just nerd out about plants! Join us every Wednesday through September 3rd at the corner of 2nd Street and 116 College Street. Hope to see you there!
Plant sale starts tomorrow! See you there!
| Monday | 8am - 5pm |
| Tuesday | 8am - 5pm |
| Wednesday | 8am - 5pm |
| Thursday | 8am - 5pm |
| Friday | 8am - 5pm |