One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant blue throatwort in Ruston can be figured out 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 has passed.

Since blue throatwort require warm weather you need to wait until after the last frost before you can plant them.

The earliest that you can plant blue throatwort in Ruston 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. Any later than that and your blue throatwort may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your blue throatwort indoors.

Last Frost Date

The average date of last frost is March 15 in Ruston. You can expect an average low temperature of 10°F in the coldest months of winter.

It's important to remember that USDA zone info for Ruston 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 Ruston it frosts late in the year after March 15 be ready to protect your blue throatwort if you have a late frost.

USDA Zone Info for Ruston

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Ruston

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