Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Vacaville you can determine when it's the best time to plant firebush by reviewing the USDA zone info.

Planting Calendar for Firebush

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

It's probably a bad idea to plant firebush until after the last frost because they are not cold tolerant.

The earliest that you can plant firebush in Vacaville 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. You probably don't want to wait any later than that or else 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 February 15 in Vacaville. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Vacaville is not always accurate the actual date of last frost will vary from year to year. Half of the time in Vacaville there is a last frost after February 15 so make sure that you are prepared to cover your firebush if you have a late frost.

USDA Zone Info for Vacaville

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Vacaville

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