The USDA Zone info is a great tool for gardeners to help us figure out 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.

The USDA zone info for South San Francisco can be used to figure out when you can plant cabbage.

Planting Calendar for Cabbage

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

You can plant cabbage a little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant cabbage in South San Francisco 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 cabbage and expect a good harvest is probably October. You probably don't want to wait any later than that or else your cabbage may not have a chance to fully mature. Starting your cabbage indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on January 31 in South San Francisco. It might get as low as 30°F during the coldest months of winter.

Keep in mind that USDA zone info for South San Francisco is an average and the actual date of last frost will vary from year to year. Since half of the time in South San Francisco there is a last frost after January 31 be ready to cover your cabbage if you have a surprise late frost.

USDA Zone Info for South San Francisco

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in South San Francisco

You may be interested in your other planting guides for South San Francisco.