Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to determine when you can plant browallia by referring to the USDA zone info for Norcross.

Planting Calendar for Browallia

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

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

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

Last Frost Date

The average date of last frost is March 15 in Norcross. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Norcross is just an average the actual date of last frost is different every year. Half of the time in Norcross last frost occurs after March 15 so be sure to be ready to cover your browallia in the event of a surprise late frost.

USDA Zone Info for Norcross

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 Norcross

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