One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Glenwood Springs you can determine when it's the best time to plant borage by reviewing the USDA zone info.

Planting Calendar for Borage

Frost tolerance for borage:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Borage are one of those plants that can tolerate a little bit of cold weather which means that you can start planting them earlier than other frost tender plants.

The earliest that you can plant borage in Glenwood Springs is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant borage and expect a good harvest is probably September. If you wait any later than that and your borage may not have a chance to grow to maturity. Starting your borage indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Glenwood Springs. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Glenwood Springs is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Glenwood Springs you get a frost after April 15 so just be sure to be ready to protect your borage if you have a late frost.

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.