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

You will be able to estimate when to plant blue throatwort by using the USDA zone info for Bloomingdale.

Planting Calendar for Blue Throatwort

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

Blue Throatwort do not do well in cold weather which tells us that it is necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant blue throatwort in Bloomingdale 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 fully mature. You can get started a few weeks earlier by starting your blue throatwort indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Bloomingdale. In the coldest months of winter you can expect an average low temperature of -5°F.

Always keep in mind that USDA zone info for Bloomingdale is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Bloomingdale last frost occurs after April 15 be ready to cover your blue throatwort in the event of one of those late frosts.

USDA Zone Info for Bloomingdale

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 Bloomingdale

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