One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. 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 estimating when you can plant sweet potato vine is to look at the USDA zone info for Wilmington.

Planting Calendar for Sweet Potato Vine

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

It's probably a bad idea to plant sweet potato vine until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant sweet potato vine in Wilmington 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 potato vine and expect a good harvest is probably August. If you wait any later than that and your sweet potato vine may not have a chance to really do well. Starting your sweet potato vine indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on March 15 in Wilmington. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Wilmington may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Wilmington you get a frost after March 15 so make sure that you are prepared to cover your sweet potato vine if you have a surprise late frost.

USDA Zone Info for Wilmington

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Wilmington

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