One of the first steps you take when you are determining 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.

One way of estimating when to plant kohlrabi is to check out the USDA zone info for Shafter.

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 moderately cold tolerant you can plant them a little earlier in the year than more sensitive plants.

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

The last month that you can plant kohlrabi and expect a good harvest is probably October. If you wait any later than that and your kohlrabi may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your kohlrabi indoors.

Last Frost Date

In Shafter the average date of last frost happens on February 15. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Shafter is just an average the actual date of last frost will vary from year to year. Half of the time in Shafter there is a last frost after February 15 so always be ready to cover your kohlrabi if you have one of those late frosts.

USDA Zone Info for Shafter

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

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

Plants to Grow in Shafter

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