Before planting it is a good idea to find your USDA Zone info to determine 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 Newnan you can estimate when to plant heuchera by looking at the USDA zone info.

Planting Calendar for Heuchera

Frost tolerance for heuchera:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant heuchera a little bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant heuchera in Newnan 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 heuchera and expect a good harvest is probably September. Any later than that and your heuchera may not have a chance to fully mature. If you are starting your heuchera indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Newnan the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 5°F.

Always keep in mind that USDA zone info for Newnan is an average and the actual date of last frost is different every year. Half of the time in Newnan it frosts late in the year after April 15 so always be ready to cover your heuchera in the event of a late frost.

USDA Zone Info for Newnan

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 Newnan

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