The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Summerville you can figure out when it's a good idea to plant browallia by referring to the USDA zone info.

Planting Calendar for Browallia

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

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

The earliest that you can plant browallia in Summerville 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. You probably don't want to wait any later than that or else your browallia may not have a chance to grow to maturity. Starting your browallia indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Summerville. You can expect an average low temperature of 5°F in the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Summerville and it changes from year to year. Since half of the time in Summerville there is a last frost after April 15 be ready to protect your browallia in the event of one of those late frosts.

USDA Zone Info for Summerville

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Summerville

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