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CSU Horticulture


CSU Extension has the resources to help you have a successful yard and garden.
You can find Factsheets and other resources from CSU Extension here Yard & Garden – Extension (

New for 2024 Master Gardener Office Hours are Tuesdays, 10 am-1 pm April 16-September 17

Call, stop by, or email yard and garden questions to Master Gardeners and Extension staff who will help answer your questions.

Make an appointment here


Call 970-564-4172


Checking out tools Call ahead to check out a soil probe
Soil & Water Testing We can give you information on how to accurately collect samples as well as help interpret results. We do not mail samples for you but can guide you through the process of how to submit samples to a lab.


Forage, Soil & Water Testing
Call or stop by our office to check out a soil probe.  We have soil sample bags available and can give you advice on how to accurately collect samples as well as give advice for result interpretation.

How to take a soil sample instructions:
Soil Sampling
Soil Sampling Instructions

Interpreting a soil test:
CSU Soil, Water and Plant Lab – Interpreting a soil test report

Fertilization guides for yard and garden from CSU Extension:
Fertilizing the vegetable garden
Vegetable Gardening – Nitrogen Recommendations
Fertilizing fruit trees

Testing labs:
CSU Soil, Water and Plant Testing Lab
Ward Lab
Midwest Labs

Yellow Jacket Orchard Demonstration Project
The Fruit Tree and Vineyard Research and Demonstration Project was implemented in April 1991 and is a cooperative effort among Dolores County Extension, Montezuma County Extension, Natural Resources and Conservation Service in Dolores County, and the Colorado State University Southwest Colorado Research Center at Yellow Jacket, Colorado. The completion of the Dolores Irrigation Project resulted in a substantial number of new client requests for local research-based information/data on fruit tree and vineyard varieties, equipment usage, and cultural practices. Prior to this project, all fruit tree information originated from the Grand Junction area Experiment Stations which have a considerably different growing environment. Presently, the Team is evaluating 75 different fruit tree varieties including 21 field apples, 43 trellised apple varieties, 2 apple varieties planted in a “super high density,” 5 peach varieties, 4 pear varieties, and 3 plum varieties. The Team is also studying 1 raspberry variety and 14 grass varieties.

Contact CSU Extensions

Contact the County Director and Agriculture Extension Agent

Contact the 4-H Youth Development Extension Agent
Contact the Extension Administrative Assistant