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

In Center Line you can figure out when to plant blue throatwort by reviewing the USDA zone info.

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 it's important to wait until after the last frost before you can plant them.

The earliest that you can plant blue throatwort in Center Line 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. If you are starting your blue throatwort indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Center Line. It might get as low as -5°F during the coldest months of winter.

Always keep in mind that USDA zone info for Center Line is just an average and the actual date of last frost is different every year. Half of the time in Center Line you get surprised by a frost after April 15 so be sure to be ready to protect your blue throatwort if you have a surprise late frost.

USDA Zone Info for Center Line

Here is the info for USDA Zone 6b.

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

Plants to Grow in Center Line

You may be interested in your other planting guides for Center Line.