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

It's possible to determine when to plant sweet potatos by reviewing the USDA zone info for Prospect.

Planting Calendar for Sweet Potatos

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

Since sweet potatos are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant sweet potatos in Prospect 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. Starting your sweet potatos indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Prospect. It might get as low as -5°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Prospect is an average and the actual date of last frost is different every year. Since half of the time in Prospect last frost occurs after April 15 be ready to protect your sweet potatos in the event of a surprise late frost.

USDA Zone Info for Prospect

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Prospect

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