Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Durant you should be able to figure out when it's the best time to plant calliopsis.

Planting Calendar for Calliopsis

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

It's not a good idea to plant calliopsis until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant calliopsis in Durant 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. 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

On average the last frost when the weather gets warmer is on April 15 in Durant. In the coldest months of winter you should expect an average low temperature of 5°F.

Always keep in mind that USDA zone info for Durant is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Durant there is a last frost after April 15 so always be ready to protect your calliopsis in the event of one of those late frosts.

USDA Zone Info for Durant

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 Durant

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