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.

The first opportunity to plant firebush in Irmo should be estimated 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.

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

The earliest that you can plant firebush in Irmo 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 grow to maturity. Starting your firebush indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Irmo. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Irmo is just an average the actual date of last frost changes from year to year. Half of the time in Irmo it frosts late in the year after March 15 so be sure to be ready to cover your firebush if you have one of those late frosts.

USDA Zone Info for Irmo

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 Irmo

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