Gardening Help Desk

The Master Gardener Diagnostic Desk
(385)468-4828 |

Our diagnostic clinic hours have ended for 2022. Walk-ins will be able to drop off specimens during regular business hours 8AM - 5PM, Mon-Fri. All specimens should be bagged or in a sealed container. Turf specimens should only be 4" deep X 4" long X 4" wide and have living plants included. Tree specimens should be limited to 12-inch pieces with living portions attached. We prefer to respond with our recommendations by email, but we may be able to give you a phone call. Responses during the off-season will be within 5 business days (hopefully sooner). 

If preferred, for a small fee, you may send specimens to the Utah Plant Pest and Disease Laboratories in Logan. Please see the links at the bottom of this page for more information.

Phone calls will be sent to the hotline number: (385)468-4828 where you may leave a voicemail message. We will only be responding to voicemail once per week during the off season. Email is best and we encourage you to attach a few photos if applicable to the question. 

Email us at and those questions will be answered within 5 business days.

For all other questions please email

We will be opening the diagnostic clinic again in April of 2023. Check back here for updates.

USU Extension office:
Salt Lake County Government Center
2001 South State Street #S1-300
Salt Lake City, UT 84190

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