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

The first chance to plant sweet potato vine in Hiawatha can be estimated by using the USDA zone info.

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.

You can not plant sweet potato vine until after the last frost because they require warm weather.

The earliest that you can plant sweet potato vine in Hiawatha 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 grow to maturity. You can get started a little bit earlier by starting your sweet potato vine indoors.

Last Frost Date

The average date of last frost is April 15 in Hiawatha. It might get as low as -20°F during the coldest months of winter.

Always keep in mind that USDA zone info for Hiawatha is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Hiawatha you get surprised by a frost after April 15 be ready to protect your sweet potato vine if you have a late frost.

USDA Zone Info for Hiawatha

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Hiawatha

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