Have a Gardening Question?
Call the Jeffco Master Gardener Helpdesk at (303) 271-6632 to get personalized help with your specific situation. You can also email questions and pictures to the Master Gardeners at mastergardener@jeffco.us. Phone and email inquiries are free of charge.
Diagnostic/Identification Services
CSU Extension in Jefferson County offers a Plant Diagnostic Help Desk. Formerly known as the Jefferson County Plant Clinic, the volunteers that run the Diagnostic Help Desk have specialized training in identifying plant diseases and insects. To contact the help desk for questions or to get virtual help with diagnosis or identification, email: plantdiagnostics@jeffco.us or call: (303)271-6627. Our services and their fees are summarized below:
| Diagnostic Services | Fees for Jefferson County Residents | Fees for Non-Residents |
| Plant Diagnosis | $20 | $30 |
| Plant Identification | $15 | $25 |
| Insect Identification | $10 | $20 |
| Virtual Diagnosis or Identification (via photos/email) | FREE | FREE |
Commercial samples or samples requiring culturing or advanced diagnostic services should be sent to CSU’s Plant Diagnostic Clinic, located at CSU Spur in Denver, CO. To contact their lab directly, call (970) 491-6950 or email csuplantlab@colostate.edu.
For information about how to submit a sample, please refer to this document.
If you’d like to fill out our forms ahead of time, you can access them below.
For plant samples, use the Plant Sample Submission Form
For insect samples, use the Insect and Arthropod Submission Form
For turf samples, use the Turfgrass Submission Form
