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When to Plant Sweet Potato Vine in Hartland, WI

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant sweet potato vine in Hartland should be figured out by checking out the USDA zone info.


Planting Calendar for Sweet Potato Vine

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

You should not plant sweet potato vine until after the last frost when the weather gets warmer because they do not do well in cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant sweet potato vine
Possibly ok, but a risky time to plant sweet potato vine
Probably not a good time to plant sweet potato vine

The earliest that you can plant sweet potato vine in Hartland 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 grow to maturity. If you are starting your sweet potato vine indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Hartland. In the coldest months of winter you should expect an average low temperature of -20°F.

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

USDA Zone Info for Hartland

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 Hartland

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