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.

By referring to the USDA zone info for Riverdale it's possible to estimate when it's possible to plant firebush.

Planting Calendar for Firebush

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

Since firebush do not do well in cold weather you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant firebush in Riverdale 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

In Riverdale the average date of last frost happens on March 15. In the coldest months of winter you can expect an average low temperature of 10°F.

Remember that USDA zone info for Riverdale may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Riverdale it frosts late in the year after March 15 so make sure that you are ready to cover your firebush in the event of a surprise late frost.

USDA Zone Info for Riverdale

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 Riverdale

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