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

By referring to the USDA zone info for Flagstaff you should be able to determine when it's possible to plant savoy cabbage.

Planting Calendar for Savoy cabbage

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

You can plant savoy cabbage much earlier in the year because they are very cold tolerant.

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

Last Frost Date

On average the last frost is on April 15 in Flagstaff. You can expect an average low temperature of -10°F in the coldest months of winter.

Remember that USDA zone info for Flagstaff may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Flagstaff last frost occurs after April 15 be ready to cover your savoy cabbage if you have a late frost.

USDA Zone Info for Flagstaff

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Flagstaff

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