When to Plant Xeriscape Plants in Colorado Springs

Plant xeriscape in Colorado Springs between September and mid-October or after mid-May—these two windows reduce transplant failure by up to 80% compared to summer planting. Timing determines whether new plants establish with minimal watering or require constant irrigation.

Key Takeaways

• Fall planting (Sept–mid-Oct) is ideal; soil stays 60–75°F while air cools, reducing establishment stress
• Colorado Springs' last frost date is mid-May; planting before this kills newly hardened perennials
• Summer planting (late June–Aug) fails 70–90% of the time due to heat, low humidity, and fast soil drying
• Fall-planted xeriscape needs 50% less supplemental water in year one than spring-planted equivalents

Timing is one of the biggest reasons xeriscape plantings succeed or fail in Colorado Springs. Plant at the wrong time and you set new plants up for an immediate fight against extreme heat, hard frost, or both. Plant at the right time and the same plants establish with minimal stress and far less supplemental watering.

There are two ideal windows, and one season you want to avoid entirely.

Should you plant xeriscape in fall in Colorado Springs?

Fall is actually the best planting window for most xeriscape perennials, grasses, shrubs, and ground covers in Colorado Springs.

Here is why: when you plant in fall, soil temperatures are still warm from summer, which encourages root growth. Meanwhile, air temperatures have dropped, so the plant is not pushing energy into top growth or fighting heat stress. All that energy goes into establishing roots before the ground freezes.

A plant with a strong root system going into winter wakes up in spring ready to grow. It needs far less supplemental water in its first summer compared to a spring-planted equivalent. This is particularly important for true Colorado natives like Apache Plume, Rabbitbrush, and Blue Grama Grass, which naturally germinate and establish in fall and early winter.

Plant by mid-October in Colorado Springs. First hard frosts typically arrive in early October, though the first frost date varies by neighborhood and elevation. Fountain and lower-elevation areas get more growing time than Black Forest or Monument, which sit higher and freeze earlier.

After fall planting, water thoroughly at installation, then water once a week until the ground freezes. That is all most xeriscape plants need.

When is the safe window for spring planting xeriscape?

Spring is the more intuitive planting window, but Colorado Springs requires patience. Our last frost date typically falls around mid-May, though late frosts can push into the third week of May in some years.

Do not rush it. A frost that hits newly planted perennials before they have hardened into the ground can set them back weeks, or kill them outright. Watch the 10-day forecast and wait for a clean stretch without sub-freezing overnight temps before putting new plants in the ground.

Once mid-May arrives and frost risk drops significantly, spring planting works well. Soil is warming, days are long, and plants can establish before summer heat arrives. That said, summer in Colorado Springs is hot and dry by late June and July, so spring-planted xeriscape plants need more attentive watering in their first season than fall-planted ones.

Why does summer planting fail for xeriscape in Colorado Springs?

The period from late June through August is the worst time to plant xeriscape plants in Colorado Springs. Even drought-tolerant plants need consistent moisture to establish a root system. In summer, our intense sun at elevation, low humidity, and afternoon heat bake moisture out of the soil fast.

You end up watering constantly just to keep new transplants alive, which defeats the purpose of xeriscaping and stresses the plant. Many summer-planted xeriscape installs fail not because the plants are wrong, but because they never got the chance to root before they were stressed.

If you find yourself with new plants in July or August because of a project delay, the best approach is to pot them up and keep them in a sheltered, partially shaded spot until fall, then plant them in September.

Protecting New Plantings from Colorado's Late Frosts

Spring frosts after planting are a real risk in Colorado Springs. A few simple steps protect your investment.

Keep a roll of frost cloth (garden fabric, not plastic sheeting) on hand through late May. When a frost warning appears, drape it loosely over new plantings and remove it in the morning. Frost cloth typically provides 4 to 6 degrees of protection, which is enough for most late-season Colorado frosts.

Do not use plastic sheeting as a substitute. Plastic traps moisture, creates condensation against leaves, and can cause more damage than an unprotected light frost.

Avoid planting tender transplants in low spots in your yard where cold air pools on calm nights. Even a few degrees difference in elevation on your lot can determine whether a borderline frost damages your plants.

First-Season Watering Schedule

Xeriscape plants are not zero-water plants in their first season. The drought tolerance kicks in after establishment, which takes one full growing season for most perennials and two to three years for larger shrubs.

In the first season, water new plantings deeply every week if you have no rain, every 10 to 14 days if you get occasional moisture. The goal is to keep the root zone moist but not saturated. Deep, infrequent watering trains roots to grow deep rather than staying near the surface.

A drip irrigation system makes first-season establishment much easier. It delivers water directly to the root zone, reduces evaporation, and can be set on a timer so you do not have to track it manually. See our xeriscape installation page for how we handle establishment irrigation in our installations.

By the second summer, most xeriscape plants in Colorado Springs need only occasional deep watering during extended dry spells. By the third season, many need nothing beyond natural rainfall.

Ready to time your planting right and get a yard that holds up through our full Colorado Springs season? Call (719) 631-2371 or get a free estimate.