Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Zone 6a 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.

Heuchera can survive in mild cold which tells us that you can plant them a little earlier in the year than other plants that might not handle the cold.

The earliest that you can plant heuchera in Zone 6a 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 grow to maturity. You can get started a few weeks earlier by starting your heuchera indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Zone 6a. You should expect an average low temperature of -10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Zone 6a is an average and the actual date of last frost will vary from year to year. Half of the time in Zone 6a you get a frost after April 15 so make sure that you are prepared to cover your heuchera if you have a late frost.

USDA Zone Info for Zone 6a

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 Zone 6a

You may be interested in your other planting guides for Zone 6a.