One of the first steps you take when you are estimating your gardening schedule is find your 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 way of determining when it's possible to plant chinese cabbage is to use the USDA zone info for Tustin.

Planting Calendar for Chinese cabbage

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

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

The earliest that you can plant chinese cabbage in Tustin 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 chinese cabbage and expect a good harvest is probably October. If you wait any later than that and your chinese cabbage may not have a chance to really do well. You can get started a couple of weeks earlier by starting your chinese cabbage indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Tustin. You can expect an average low temperature of 30°F in the coldest months of winter.

It's important to remember that the actual date of last frost is an average because it is based on the USDA zone info for Tustin and it is different every year. Since half of the time in Tustin you get a frost after January 31 be ready to protect your chinese cabbage in the event of a surprise late frost.

USDA Zone Info for Tustin

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 Tustin

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