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.

In Evergreen Park you can estimate when it's possible to plant blue throatwort by referring to 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.

It's probably not a good idea to plant blue throatwort until after the last frost because they do not do well in cold weather.

The earliest that you can plant blue throatwort in Evergreen Park 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 grow to maturity. Starting your blue throatwort indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Evergreen Park. You should expect an average low temperature of -10°F in the coldest months of winter.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Evergreen Park and it can change quite a bit from year to year. Half of the time in Evergreen Park there is a last frost after April 15 so always be ready to cover your blue throatwort in the event of one of those late frosts.

USDA Zone Info for Evergreen Park

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 Evergreen Park

You may be interested in your other planting guides for Evergreen Park.