The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when it's a good idea to plant angel's trumpets in Colorado Springs by using the USDA zone info.

Planting Calendar for Angel's Trumpets

Frost tolerance for angel's trumpets:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Angel's Trumpets do well in mild cold which means that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant angel's trumpets in Colorado Springs is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant angel's trumpets and expect a good harvest is probably August. If you wait any later than that and your angel's trumpets may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your angel's trumpets indoors.

Last Frost Date

In Colorado Springs the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Colorado Springs is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Colorado Springs you get a frost after April 15 be ready to cover your angel's trumpets if you have a surprise late frost.

USDA Zone Info for Colorado Springs

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Colorado Springs

You may be interested in your other planting guides for Colorado Springs.