One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to determine when you can plant savoy cabbage by reviewing the USDA zone info for Calistoga.

Planting Calendar for Savoy cabbage

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

Savoy cabbage are one of those plants that can tolerate quite a bit of cold weather which tells us that you can plant them much earlier than more sensitive plants.

The earliest that you can plant savoy cabbage in Calistoga 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 savoy cabbage and expect a good harvest is probably October. Any later than that and your savoy cabbage may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your savoy cabbage indoors.

Last Frost Date

In Calistoga the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Calistoga is not always accurate the actual date of last frost is different every year. Since half of the time in Calistoga last frost occurs after February 15 be ready to cover your savoy cabbage if you have one of those late frosts.

USDA Zone Info for Calistoga

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 Calistoga

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