One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant liatris in Stone Mountain should be estimated by using the USDA zone info.

Planting Calendar for Liatris

Frost tolerance for liatris:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Liatris are very cold tolerant which tells us that you can start planting them much earlier than other frost tender plants.

The earliest that you can plant liatris in Stone Mountain is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant liatris and expect a good harvest is probably September. Any later than that and your liatris may not have a chance to really do well. You can get started a couple of weeks earlier by starting your liatris indoors.

Last Frost Date

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

Since the USDA zone info for Stone Mountain is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Stone Mountain you get surprised by a frost after April 15 be ready to cover your liatris if you have a surprise 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.