Proudly affiliated with the OSU Extension Master Gardener Program Clatsop County Master Gardener classes begin in early January and go through March.
The Master Gardener program is an Oregon State University Extension Service program that helps Oregon gardeners learn more about the art and science of growing and caring for plants. It also enables these trained volunteers to extend sustainable gardening information to their communities through educational outreach programs. For more information on becoming a Master Gardener please contact the Clatsop County Extension Office at (503) 325-8573 or email [email protected]
07/01/2026
FREE Soil pH Testing tomorrow!
Bring 1 cup of your garden soil in a sealed Ziploc bag and visit our summer interns and Master Gardener volunteers at the Seaside Farmers Market for free soil pH testing!
Wednesday, July 1
1:00–6:00 PM
Seaside Farmers Market
07/01/2026
Did you know our Master Gardeners have featured topics for some of our Sunday Market dates? Swing by the Master Gardener Booth at Astoria Sunday Market this Sunday, June 14th between 10 am and 3 pm to learn about our climate resilient gardening work and win a prize!
2026 Special Topics Calendar:
JUNE 14: Garden Future: Climate Resilient Gardening
JUNE 28: Canning Tips and Presto Pressure Canner Gauge Testing*
JULY 12: Soil pH Testing - bring 1 cup of your garden soil for free testing!
JULY 26: All About Dahlias with Master Gardener in Training Mindy Bizzell
AUGUST 9: Northwest Native Bees with Master Gardener Mary Jo Mosby
AUGUST 23: Canning Tips and Presto Pressure Canner Gauge Testing*
SEPTEMBER 20: Canning Tips and Presto Pressure Canner Gauge Testing
*In partnership with the OSU Extension Master Food Preserver Program*
05/11/2026
The rhododendrons are starting to bloom, which means it's time for our next Yeon House Plant Walk with Lewis and Clark National Historical Park! Meet us at the Sunset Beach Trailhead Parking Lot on Wednesday May 20th at 5:30 pm for a guided walk to the Yeon House and back. Please RSVP at clatsopcomga.org if you plan to attend.
05/11/2026
A big THANK YOU to our neighbors who supported our Annual Spring Plant Sale and Education Event on Saturday! All funds raised from your pre-orders and on-site purchases are being reinvested in programs that support our mission of providing research-based home horticulture advice, education, and outreach across Clatsop County.
With a small inventory of ornamental plants remaining, we’ll be hosting a one-day **FLASH PLANT SALE** tomorrow (Tuesday, May 12) from 11:00 AM - 1:00 PM, in our Demo Garden at the Clatsop Co. Fairgrounds.
Tomorrow, you’ll find upright fuschia, perennial lobelia, ferns, sun coleus, scabiosa, petunias, dragon wing begonias, heuchera, hostas, and more available for purchase. Card, cash, and check will be accepted.
Our Master Gardener volunteers will also be offering garden tours for anyone interested in finding more growing inspiration!
05/08/2026
Our annual Spring Plant Sale & Educational Event is set and ready to welcome fellow gardeners tomorrow (Sat., May 9)! Doors open at 9:00 AM at the Clatsop County Fair & Expo and close at noon.
We'll have veggie starts, herbs, perennials, and a beautiful selection of annual color available to purchase. Cash, check, and credit cards will be accepted, with all funds benefiting our community horticultural programs across Clatsop County.
Our volunteers and local partners will also host several educational activities, including soil pH testing, pressure canner gauge testing, a hands-on insect hotel activity for kids, and stations to learn about bees, dahlias, hummingbirds, and more. Young entrepreneurs from the 4-H Biz Kids program will also be selling their goods.
New this year, we'll be running a Blind Date With a Book sale, where you can purchase a mystery book for $10... an excellent pre-wrapped Mother's Day Gift idea! And we'll once again be selling tickets for our raffle and silent auction for a chance to win amazing prize packages donated by local businesses across the county.
We look forward to seeing you tomorrow, neighbors!
05/01/2026
Don't forget that tomorrow is North Coast Action's Community Resilience Day! Volunteer with us at the Alderbrook Learning Garden (668 45th St., Astoria, OR) tomorrow (Fri. 5/1) from 11 am to 1 pm. Please come get your hands dirty while we get ready for planting season. We guarantee you'll learn some useful gardening tidbits along the way!
Forgot to RSVP? Not a problem - just show up! We'd love the extra hands.
Photo credit: Aspen Bowling