The USDA Zone info is a great tool for gardeners to help us determine 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.

A common way of making a decision about when it's possible to plant firebush is to look at the USDA zone info for Cincinnati.

Planting Calendar for Firebush

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

You can not plant firebush until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant firebush in Cincinnati 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 fully mature. You can get started a couple of weeks earlier by starting your firebush indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Cincinnati. You should expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Cincinnati is an average the actual date of last frost changes from year to year. Half of the time in Cincinnati you get surprised by a frost after April 15 so make sure that you are ready to cover your firebush in the event of a surprise late frost.

USDA Zone Info for Cincinnati

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 Cincinnati

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