The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Stone Mountain you can figure out when to plant polygonums by checking out the USDA zone info.

Planting Calendar for Polygonums

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

Since polygonums do not do well in cold weather you really should wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant polygonums in Stone Mountain 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 polygonums and expect a good harvest is probably August. Any later than that and your polygonums may not have a chance to grow to maturity. Starting your polygonums indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Stone Mountain the average date of last frost happens on April 15. You can expect an average low temperature of 5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Stone Mountain is just an average and the actual date of last frost will vary from year to year. Since half of the time in Stone Mountain you get a frost after April 15 be ready to protect your polygonums in the event of a late frost.

USDA Zone Info for Stone Mountain

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 Stone Mountain

You may be interested in your other planting guides for Stone Mountain.