The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant firebush in Vincennes can be figured out by looking at the USDA zone info.

Planting Calendar for Firebush

Frost tolerance for firebush:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You should not plant firebush until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant firebush in Vincennes 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 firebush and expect a good harvest is probably August. If you wait any later than that and your firebush may not have a chance to grow to maturity. If you are starting your firebush indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Vincennes the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -10°F.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Vincennes and it is different every year. Half of the time in Vincennes it frosts late in the year after April 15 so always be ready to cover your firebush in the event of a late frost.

USDA Zone Info for Vincennes

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 Vincennes

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