One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to figure out when it's a good idea to plant angel's trumpets by looking at the USDA zone info for Glenwood Springs.

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.

Since angel's trumpets do ok in moderate cold you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant angel's trumpets in Glenwood 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 fully mature. You can get started a couple of weeks earlier by starting your angel's trumpets indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Glenwood Springs. You can expect an average low temperature of -10°F in the coldest months of winter.

Remember that USDA zone info for Glenwood Springs is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Glenwood Springs it frosts late in the year after April 15 be ready to protect your angel's trumpets in the event of one of those late frosts.

USDA Zone Info for Glenwood Springs

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Glenwood Springs

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