When to Plant Cabbage in Zone 1a

One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

You can determine when it's a good idea to plant cabbage in Zone 1a by reviewing the USDA zone info.


Planting Calendar for Cabbage

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

Cabbage tend to make it in moderate cold which means that you can plant them a bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant cabbage
Possibly ok, but a risky time to plant cabbage
Probably not a good time to plant cabbage

The earliest that you can plant cabbage in Zone 1a is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant cabbage and expect a good harvest is probably July. If you wait any later than that and your cabbage may not have a chance to grow to maturity. Starting your cabbage indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is June 15 in Zone 1a. You can expect an average low temperature of -60°F in the coldest months of winter.

Since the USDA zone info for Zone 1a is just an average the actual date of last frost will vary from year to year. Since half of the time in Zone 1a it frosts late in the year after June 15 be ready to cover your cabbage if you have a late frost.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-60°F
Highest Expected Low-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

You may be interested in your other planting guides for Zone 1a.