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.

A common way of figuring out when it's possible to plant kohlrabi is to refer to the USDA zone info for Barre.

Planting Calendar for Kohlrabi

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

Kohlrabi do well in a little bit of cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant kohlrabi in Barre 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. Any later than that and your kohlrabi may not have a chance to really do well. You can get started a couple of weeks earlier by starting your kohlrabi indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Barre. You can expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Barre is not always accurate the actual date of last frost is different every year. Since half of the time in Barre there is a last frost after May 15 be ready to protect your kohlrabi if you have one of those late frosts.

USDA Zone Info for Barre

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 Barre

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