One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. 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 making a decision about when it's the best time to plant red cabbage is to consult the USDA zone info for Sebastopol.

Planting Calendar for Red cabbage

Frost tolerance for red cabbage:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since red cabbage are one of those plants that can tolerate quite a bit of cold weather you can plant them earlier in the year than other plants that might not handle the cold.

The earliest that you can plant red cabbage in Sebastopol 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 red cabbage and expect a good harvest is probably October. You probably don't want to wait any later than that or else your red cabbage may not have a chance to fully mature. If you are starting your red cabbage indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on February 15 in Sebastopol. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Sebastopol is not always accurate the actual date of last frost will vary from year to year. Half of the time in Sebastopol it frosts late in the year after February 15 so make sure that you are prepared to cover your red cabbage in the event of a surprise late frost.

USDA Zone Info for Sebastopol

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 Sebastopol

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