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When to Plant Sweet Potato Vine in Port Washington, WI

The USDA Zone info is a great tool for gardeners to help us figure out 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.

A common way of making a decision about when it's a good idea to plant sweet potato vine is to check out the USDA zone info for Port Washington.


Planting Calendar for Sweet Potato Vine

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

It's not a good idea to plant sweet potato vine until after the last frost has passed 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 Port Washington 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. 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 Port Washington. You should expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that the actual date of last frost is an average because it is based on the USDA zone info for Port Washington and it changes from year to year. Since half of the time in Port Washington you get a frost after April 15 be ready to protect your sweet potato vine if you have a surprise late frost.

USDA Zone Info for Port Washington

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 Port Washington

You may be interested in your other planting guides for Port Washington.