One of the first steps you take when you are estimating 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 USDA zone info for Louisville should be looked at to determine when you can plant firebush.

Planting Calendar for Firebush

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

Since firebush require warm weather you really should wait until after the last frost before you can plant them.

The earliest that you can plant firebush in Louisville 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. Any later than that and your firebush may not have a chance to really do well. You can get started a couple of weeks earlier by starting your firebush indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Louisville. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for Louisville is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Louisville you get surprised by a frost after April 15 be ready to cover your firebush in the event of one of those late frosts.

USDA Zone Info for Louisville

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Louisville

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