One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Clarks Summit you can estimate when you can plant browallia by looking at the USDA zone info.

Planting Calendar for Browallia

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

Since browallia do not do well in cold weather it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant browallia in Clarks Summit 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 fully mature. You can get started a little bit earlier by starting your browallia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Clarks Summit. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Clarks Summit is just an average the actual date of last frost is different every year. Since half of the time in Clarks Summit last frost occurs after April 15 be ready to cover your browallia if you have a surprise late frost.

USDA Zone Info for Clarks Summit

Here is the info for USDA Zone 6a.

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

Plants to Grow in Clarks Summit

You may be interested in your other planting guides for Clarks Summit.