One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of getting a good idea when it's possible to plant sweet potato vine is to use the USDA zone info for Hampshire.

Planting Calendar for Sweet Potato Vine

Frost tolerance for sweet potato vine:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Sweet Potato Vine are not cold tolerant which means that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant sweet potato vine in Hampshire 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. You probably don't want to wait any later than that or else 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

In Hampshire the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Keep in mind that USDA zone info for Hampshire is just an average and the actual date of last frost will vary from year to year. Half of the time in Hampshire it frosts late in the year after April 15 so just be sure to be ready to protect your sweet potato vine if you have one of those late frosts.

USDA Zone Info for Hampshire

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Hampshire

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