The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's a good idea to plant cabbage by reviewing the USDA zone info for Roma.

Planting Calendar for Cabbage

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

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

The earliest that you can plant cabbage in Roma 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. If you wait any later than that and your cabbage may not have a chance to fully mature. You can get started a little bit earlier by starting your cabbage indoors.

Last Frost Date

On average the last frost is on February 15 in Roma. In the coldest months of winter you can expect an average low temperature of 25°F.

Always keep in mind that USDA zone info for Roma is just an average and the actual date of last frost will vary from year to year. Since half of the time in Roma last frost occurs after February 15 be ready to cover your cabbage if you have a late frost.

USDA Zone Info for Roma

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Roma

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