Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Charleston you can estimate when it's possible to plant kohlrabi by using the USDA zone info.

Planting Calendar for Kohlrabi

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

You can plant kohlrabi a little bit earlier in the year because they are moderately cold tolerant.

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

The last month that you can plant kohlrabi and expect a good harvest is probably September. You probably don't want to wait any later than that or else your kohlrabi may not have a chance to really do well. Starting your kohlrabi indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Charleston. It might get as low as 0°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Charleston may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Charleston it frosts late in the year after April 15 so be sure to be ready to cover your kohlrabi if you have a late frost.

USDA Zone Info for Charleston

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Charleston

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