One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of figuring out when it's the best time to plant blue throatwort is to consult the USDA zone info for Belpre.

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 require warm weather which tells us that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant blue throatwort in Belpre 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. 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 the last frost is on April 15 in Belpre. You should expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Belpre is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Belpre you get a frost after April 15 be ready to cover your blue throatwort if you have a surprise late frost.

USDA Zone Info for Belpre

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 Belpre

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