Guide · checked November 14, 2026

When to plant evergreens here

Spring is the safest time to plant evergreens in Colorado. Early fall works too, with more watering.

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The windows

The Colorado State Forest Service says the best periods for planting trees in Colorado are spring, March 15 to June 15, and fall, September 1 to October 15, when temperatures are less extreme.

Why fall is second best

PlantTalk Colorado says fall is "second best in Colorado, behind spring," to finish fall planting by the end of October, and that "evergreens are more at risk when planted in the fall because their needles are exposed to the elements in the fall and winter."

If you plant in fall

Plan on winter watering. CSU Extension says to water during dry spells without snow cover about once or twice a month, only when it is above 40°F, at midday. See watering new trees.

Booking

Planting companies get busy in spring. If you're asking for quotes in winter, mention your target month in the request so they can schedule.

Related

• Watering and care for new trees
• Privacy tree planting