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

In Jackson you can figure out when you can plant sweet potatos by reviewing the USDA zone info.

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 a bad idea to plant sweet potatos until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant sweet potatos in Jackson is May. However, you really should wait until June 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. You probably don't want to wait any later than that or else your sweet potatos may not have a chance to grow to maturity. Starting your sweet potatos indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Jackson. You should expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Jackson is just an average the actual date of last frost is different every year. Half of the time in Jackson last frost occurs after May 15 so make sure that you are ready to protect your sweet potatos if you have a surprise late frost.

USDA Zone Info for Jackson

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Jackson

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