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When to Plant Kohlrabi in Cottage Grove, MN

One of the first steps you take when you are making a decision about 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.

It's possible to figure out when it's a good idea to plant kohlrabi by reviewing the USDA zone info for Cottage Grove.

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Planting Calendar for Kohlrabi

Frost tolerance for kohlrabi: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Since kohlrabi are one of those plants that can tolerate a little bit of cold weather you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

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

The earliest that you can plant kohlrabi in Cottage Grove is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant kohlrabi and expect a good harvest is probably August. You probably don't want to wait any later than that or else your kohlrabi may not have a chance to really do well. If you are starting your kohlrabi indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Cottage Grove the average date of last frost happens on May 15. In the coldest months of winter you can expect an average low temperature of -25°F.

Just be sure to remember that USDA zone info for Cottage Grove is an average and the actual date of last frost is different every year. Half of the time in Cottage Grove it frosts late in the year after May 15 so always be ready to cover your kohlrabi if you have a late frost.

USDA Zone Info for Cottage Grove

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Cottage Grove

You may be interested in your other planting guides for Cottage Grove.