The USDA Zone info is a great tool for gardeners to help us estimate 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.

A way of determining when it's possible to plant heuchera is to consult the USDA zone info for Germantown.

Planting Calendar for Heuchera

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

Heuchera are moderately cold tolerant which tells us that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant heuchera in Germantown 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. If you wait any later than that and your heuchera may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your heuchera indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Germantown. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Germantown is not always accurate the actual date of last frost is different every year. Since half of the time in Germantown last frost occurs after April 15 be ready to cover your heuchera in the event of a late frost.

USDA Zone Info for Germantown

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 Germantown

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