Gardening help and resources

Master Gardener volunteers are easy to access and here to help. Come visit us in person at local farmers' markets or submit your questions to us online. Come to one of our events and learn along with us. In addition, we've gathered some of the most used and sought after sources of information for gardeners in our region.

Come see us in person!

During the gardening season, Master Gardener volunteers are available to answer questions and assist gardeners by staffing plant clinics. You can find them:

Pendleton Farmers' Market

3rd Thursday of each month, 4–7 pm

Irrigon Farmers' Market

Dates and times for 2026 TBA

Photo Credit: ahavelaar - Adobe Stock (Cropped from original)

Have a Question? Ask Extension!

Ask Extension is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

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Research your plant questions

We've found the following resources to be the most referenced sources of information for gardeners in the Umatilla county area.

Growing Your Own

This intro to gardening in Oregon covers all the bases: site selection, soil improvement, raised beds, planting, watering, pests, plant diseases and weeds. Regional tips cover every area of Oregon. Now available in English and Spanish in one publication!

Gail Langellotto | Jun 2023 | OSU Extension Catalog Peer reviewed (Orange level)

Eastern Oregon seed-starting schedule

Gardening in Eastern Oregon presents unique challenges. This guide provides timing on starting seeds indoors, transplanting, and direct-seeding, all based on Eastern Oregon's average frost-free date.

Russell Smith-Ollivierre | Apr 2025 | OSU Extension Catalog Peer reviewed (Gray level)

Pest management schedules for fruit trees in Eastern Oregon

What do you need to do when to protect against diseases and insect pests for your apple, cherry and stone fruit trees? We have the answers for people who live in Eastern Oregon.

Cody Copp | Mar 2025 | OSU Extension Catalog Peer reviewed (Orange level)

Does a greenhouse in Eastern Oregon need auxiliary heat in the winter?

Q: Our new greenhouse faces south. Does it need auxiliary heat in Eastern Oregon winter?

A: View answer | View all featured questions

Home fruit tree care in Eastern Oregon

Fruit trees can thrive in Eastern Oregon, but there are considerations for growing them in our unique climate.

Cody Copp | Mar 2024 | Collection

Home Fruit Tree Care in Eastern Oregon

Watch this video to learn more about pest management, tree care, and pruning fruit trees in Eastern Oregon.

Cody Copp | Mar 2024 | Video

Eastern Oregon Agricultural Research Center (EOARC) YouTube channel

Eastern Oregon Agricultural Research Center (EOARC) YouTube channel has videos on their research and educational programs. EOARC is a cooperative research effort between Oregon State University and USDA-Agricultural Research Service focusing on rangeland ecology and restoration of wildlands, environmentally compatible livestock systems, forage crops, and alternative livestock systems in the sagebrush-steppe of the Great Basin and inland coniferous forests of the Pacific Northwest. The Center's research program is unique in the integration of research about beef cattle, rangeland, wildlife, watershed, and forest management.

Dec 2023 | Online resource

Lawn watering guide for Eastern Oregon

During the summer, nearly half of all residential water in Oregon is used to irrigate landscape areas around homes. A significant reduction in water use can occur by using efficient water ways to maintain our lawns and ...

Mary Corp, Chris Luttrell | May 2024 | OSU Extension Catalog Peer reviewed (Gray level)

Monthly Garden Calendars

Are you wondering what to do in your garden this month? The OSU Extension garden calendar contains timely monthly garden tips including information about garden planning, maintenance and clean up, pest monitoring and management, houseplants, and indoor gardening.

See the calendar

Photo: Canva (Cropped from original)

Contact Umatilla County Master Gardeners

Umatilla County Extension Office - BMCC PIAF

2121 S First Street
Hermiston, OR 97838
United States

Phone:

Hermiston 541-567-9306
Pendleton 541-278-5403

Email

[email protected]

OSU Extension Service

Umatilla County Master Gardeners