The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Concordia it's possible to estimate 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 require warm weather you need to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant blue throatwort in Concordia 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. If you wait any later than that and 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 couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Concordia. In the coldest months of winter you should expect an average low temperature of -10°F.

Remember that USDA zone info for Concordia may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Concordia last frost occurs after April 15 be ready to protect your blue throatwort if you have a surprise late frost.

USDA Zone Info for Concordia

Here is the info for USDA Zone 6a.

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

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

Plants to Grow in Concordia

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