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

By checking out the USDA zone info for Del Rio you should be able to determine when you can plant firebush.

Planting Calendar for Firebush

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

Since firebush are not cold tolerant you have to wait until after the last frost before you can plant them.

The earliest that you can plant firebush in Del Rio is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant firebush and expect a good harvest is probably September. If you wait any later than that and your firebush may not have a chance to really do well. If you are starting your firebush indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Del Rio. In the coldest months of winter you should expect an average low temperature of 20°F.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Del Rio and it will vary from year to year. Half of the time in Del Rio you get a frost after February 15 so make sure that you are prepared to protect your firebush if you have a late frost.

USDA Zone Info for Del Rio

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Del Rio

You may be interested in your other planting guides for Del Rio.