When can I plant Cabbage in Zone 3b

One of the best tools that we have as gardeners to help us determine our 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 our area.

The USDA zone info for Zone 3b should be read to determine when it's the best time to plant cabbage.


Planting Calendar for Cabbage

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

Cabbage are one of those plants that can tolerate a little bit of cold weather which means that you can plant them a little bit earlier 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 3b is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant cabbage and expect a good harvest is probably August. Any later than that and your cabbage may not have a chance to really do well. If you are starting your cabbage indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Zone 3b the average date of last frost happens on May 15. In the coldest months of winter we can expect an average low temperature of -35°F.

Keep in mind that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 3b and it changes from year to year. Since half of the time in Zone 3b it frosts late in the year after May 15 be ready to protect your cabbage in the event of a surprise late frost.

USDA Zone Info for Zone 3b

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-35°F
Highest Expected Low-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Zone 3b

You may be interested in our other planting guides for Zone 3b.