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Welcome to the CSU Extension Office in Douglas County. Our goal is to assist you with any questions you may have whether it is about gardening, wildlife, 4-H or any other needs.

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Horticulture Resources

Gardening in Douglas County

Gardening in Colorado can be challenging. The high altitude (elevations in Douglas County range from 5,000 to 8,000ft), the drying winds, the unpredictable weather, and the heavy clay soils can make even the most stalwart gardener through up their hands in despair. The variability of the terrain in our area creates disparate microclimates – one type of plant may be fabulous in a neighbor’s yard but fail miserably in yours.

The key to gardening in our region is working with the climate and landscape instead of against it. We have more sun then most places on earth, low humidity that keeps most diseases at bay, and cool nights that create ideal growing conditions for many plants – they just might not be the same plants that grow in most other places. While rhododendrons, hydrangeas, and boxwood are just not cut out for our conditions there are many great plants that are. CSU Extension can help you to discover the plants that work in Douglas County and give advice on how to maintain and care for your yard.

Timely Tips for Summer

Master Gardeners provide useful information to help your gardening efforts all year long.  Email the helpdesk or call 720-733-6935 to ask your question! (Phone coverage is irregular due to COVID, for fastest response; use email!)

Dog Days
Due to our semi-arid climate, desiccating winds, intense sunshine, and extended periods without moisture, make sure you’re getting your plants the water they need.  Keep an eye on your trees, shrubs, perennials, and turf, especially those facing south and west.  Make sure your sprinkler system is adjusted and use your plants’ appearance and soil conditions to inform when to water, rather than a set schedule.