Before planting it is a good idea to find your USDA Zone info to estimate 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.

In Lilburn you can estimate when it's a good idea to plant liatris by looking at 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.

Since liatris do well in cold you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant liatris in Lilburn 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 grow to maturity. If you are starting your liatris indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Remember that USDA zone info for Lilburn may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Lilburn you get surprised by a frost after April 15 so always be ready to cover your liatris if you have a surprise late frost.

USDA Zone Info for Lilburn

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 Lilburn

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