The USDA Zone info is a great tool for gardeners to help us figure out 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.

A common way of estimating when it's a good idea to plant calliopsis is to use the USDA zone info for Alexandria.

Planting Calendar for Calliopsis

Frost tolerance for calliopsis:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since calliopsis require warm weather you must wait until after the last frost before you can plant them.

The earliest that you can plant calliopsis in Alexandria is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

In Alexandria the average date of last frost happens on April 15. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Alexandria is just an average the actual date of last frost changes from year to year. Half of the time in Alexandria it frosts late in the year after April 15 so make sure that you are prepared to cover your calliopsis if you have a late frost.

USDA Zone Info for Alexandria

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Alexandria

You may be interested in your other planting guides for Alexandria.