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

The earliest that you can plant browallia in Orange should be estimated by using the USDA zone info.

Planting Calendar for Browallia

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

You can not plant browallia until after the last frost because they require warm weather.

The earliest that you can plant browallia in Orange 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 browallia and expect a good harvest is probably September. If you wait any later than that and your browallia may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your browallia indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Orange. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Orange may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Orange you get a frost after February 15 so just be sure to be ready to protect your browallia in the event of a surprise late frost.

USDA Zone Info for Orange

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 Orange

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