When to Plant Sweet Potatos in Alexandria, MN

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 first opportunity to plant sweet potatos in Alexandria can be estimated by checking out the USDA zone info.


Planting Calendar for Sweet Potatos

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

Sweet Potatos are not cold tolerant which tells us that it is necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

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

The earliest that you can plant sweet potatos in Alexandria is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant sweet potatos and expect a good harvest is probably August. If you wait any later than that and your sweet potatos may not have a chance to really do well. You can get started a couple of weeks earlier by starting your sweet potatos indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Alexandria. In the coldest months of winter you can expect an average low temperature of -30°F.

Always keep in mind that USDA zone info for Alexandria may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Alexandria there is a last frost after May 15 be ready to cover your sweet potatos if you have a surprise late frost.

USDA Zone Info for Alexandria

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Alexandria

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