Hand reaching for plants sprouting in the dirt after it's rained.

Plant Diagnostic Clinic

Answering your gardening questions since 1973

Kittitas County Master Gardener Plant Diagnostic Clinic

Bring your gardening questions to us!

Our Master Gardeners are here to answer your questions for a thriving garden and lawn!

We are open Tuesdays from 11:30am-2:30pm April through September.

Contact the Plant Diagnostic Clinic with the online submission form below or via email or call (509) 933-8237.

For more information about the Plant Diagnostic Clinic, email Patty Ratzlaff or call 509-962-7092.

Volunteer answering your questions

Our Plant Diagnostic Clinic is located at the Armory.

901 E. 7th Ave, Suite 2
Ellensburg, WA 98926

Our Plant Clinic is open Tuesdays April -September from 11:30am-2:30pm.

What to Include in Your Submission

  • Your physical address and contact information (phone number, email address).
  • Where plant is located in yard/land/in house. Shade? Sun? How many hours of light a day?
  • Age of plant.
  • Health of nearby plants.
  • How long has this been a problem?
  • Any treatments you’ve tried.

We welcome your gardening questions!


Frequently Asked Questions:

A: WSU has experts working in many areas with regards to plant pests and diseases. You can find their work on these statewide pages.

WSU Gardening in Washington State – Pests

WSU Gardening in Washington State – Pest Management

Many peer-reviewed publications from WSU pertaining to insect and other bug damage on plants.

A: Hortsense is a database of more than one thousand fact sheets provided to home gardeners through WSU. They guide home gardeners in managing plant problems using Integrated Pest Management (IPM) strategies, including cultural controls and Washington State registered pesticides.

And yes, you can access it at any time! Check out the WSU Hortsense-Plant Disease section for more information on how to diagnose and treat common plant ailments.

A: WSU publishes tip sheets, manuals, and other reference material regularly through the publications store in addition to the resources available through Hortsense.