The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Germantown you will be able to figure out when it's the best time to plant sweet potatos.

Planting Calendar for Sweet Potatos

Frost tolerance for sweet potatos:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant sweet potatos until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant sweet potatos in Germantown is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant sweet potatos and expect a good harvest is probably August. Any later than that and your sweet potatos may not have a chance to really do well. You can get started a little bit earlier by starting your sweet potatos indoors.

Last Frost Date

The average date of last frost is 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 an average the actual date of last frost changes from year to year. Half of the time in Germantown you get a frost after April 15 so always be ready to protect your sweet potatos 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.