Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of determining when it's possible to plant firebush is to consult the USDA zone info for Spring Grove.

Planting Calendar for Firebush

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

Since firebush do not do well in cold weather it is important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant firebush in Spring Grove 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 fully mature. 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 April 15 in Spring Grove. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Spring Grove is an average the actual date of last frost will vary from year to year. Since half of the time in Spring Grove it frosts late in the year after April 15 be ready to cover your firebush in the event of a late frost.

USDA Zone Info for Spring Grove

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Spring Grove

You may be interested in your other planting guides for Spring Grove.