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

By looking at the USDA zone info for Southaven you will be able to figure out when it's possible to plant blue throatwort.

Planting Calendar for Blue Throatwort

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

Since blue throatwort are not cold tolerant you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant blue throatwort in Southaven 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 blue throatwort and expect a good harvest is probably August. You probably don't want to wait any later than that or else your blue throatwort may not have a chance to really do well. Starting your blue throatwort indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Southaven. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Southaven is an average the actual date of last frost will vary from year to year. Half of the time in Southaven you get a frost after April 15 so always be ready to cover your blue throatwort in the event of a surprise late frost.

USDA Zone Info for Southaven

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 Southaven

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