One of the best tools that you have as gardeners to help us determine 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.

You will be able to estimate when it's possible to plant firebush by using the USDA zone info for Willow Springs.

Planting Calendar for Firebush

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

Firebush are not cold tolerant which means that it is important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant firebush in Willow Springs 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. You can get started a little bit earlier by starting your firebush indoors.

Last Frost Date

The average date of last frost is April 15 in Willow Springs. In the coldest months of winter you can expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for Willow Springs is an average and the actual date of last frost changes from year to year. Half of the time in Willow Springs it frosts late in the year after April 15 so make sure that you are ready to cover your firebush if you have a surprise late frost.

USDA Zone Info for Willow Springs

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 Willow Springs

You may be interested in your other planting guides for Willow Springs.