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 San Marcos can be reviewed to determine when it's possible to plant red cabbage.

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 quite a bit earlier in the year than other frost tender plants.

The earliest that you can plant red cabbage in San Marcos 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 red cabbage and expect a good harvest is probably September. Any later than that and your red cabbage may not have a chance to really do well. You can get started a couple of weeks earlier by starting your red cabbage indoors.

Last Frost Date

The average date of last frost is March 15 in San Marcos. You should expect an average low temperature of 15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for San Marcos is just an average and the actual date of last frost is different every year. Half of the time in San Marcos last frost occurs after March 15 so just be sure to be ready to cover your red cabbage if you have a late frost.

USDA Zone Info for San Marcos

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in San Marcos

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