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.

The USDA zone info for Southfield should be looked at to estimate when you can plant sweet potatos.

Planting Calendar for Sweet Potatos

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

You can not plant sweet potatos until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant sweet potatos in Southfield 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 fully mature. You can get started a couple of weeks earlier by starting your sweet potatos indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Southfield. In the coldest months of winter you can expect an average low temperature of -10°F.

It's important to remember that USDA zone info for Southfield may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Southfield you get surprised by a frost after April 15 so be sure to be ready to protect your sweet potatos if you have one of those late frosts.

USDA Zone Info for Southfield

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 Southfield

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