One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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 possible to estimate when it's a good idea to plant calliopsis by looking at the USDA zone info for Dexter.

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 have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant calliopsis in Dexter 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 really do well. You can get started a few weeks earlier by starting your calliopsis indoors.

Last Frost Date

The average date of last frost is April 15 in Dexter. In the coldest months of winter you should expect an average low temperature of 0°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Dexter and it can change quite a bit from year to year. Since half of the time in Dexter you get a frost after April 15 be ready to protect your calliopsis if you have a surprise late frost.

USDA Zone Info for Dexter

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Dexter

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