One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's the best time to plant blue throatwort in Parsons by looking at 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 when the weather gets warmer.

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

The earliest that you can plant blue throatwort in Parsons 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. You can get started a little bit earlier by starting your blue throatwort indoors.

Last Frost Date

The average date of last frost is April 15 in Parsons. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Parsons is just an average the actual date of last frost is different every year. Half of the time in Parsons there is a last frost after April 15 so always be ready to cover your blue throatwort if you have a surprise late frost.

USDA Zone Info for Parsons

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 Parsons

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