The USDA Zone info is a great tool for gardeners to help us determine 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.

By looking at the USDA zone info for Cullman it's possible to figure out when to plant napa cabbage.

Planting Calendar for Napa cabbage

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

Napa cabbage tend to make it in pretty solid cold which means that you can plant them a lot earlier in the year than other frost tender plants.

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Cullman. In the coldest months of winter you should expect an average low temperature of 5°F.

It's important to remember that USDA zone info for Cullman is just an average and the actual date of last frost changes from year to year. Half of the time in Cullman last frost occurs after April 15 so be sure to be ready to protect your napa cabbage in the event of a late frost.

USDA Zone Info for Cullman

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Cullman

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