When can I plant Cauliflower in Zone 6b

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

The first chance to plant cauliflower in Zone 6b should be determined by checking out the USDA zone info.


Planting Calendar for Cauliflower

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

Cauliflower tend to make it in some cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

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

The earliest that you can plant cauliflower in Zone 6b 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 cauliflower and expect a good harvest is probably September. If you wait any later than that and your cauliflower may not have a chance to grow to maturity. If you are starting your cauliflower indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Zone 6b. We should expect an average low temperature of -5°F in the coldest months of winter.

Keep in mind that our actual date of last frost is just an average because it is based on the USDA zone info for Zone 6b and it can change quite a bit from year to year. Half of the time in Zone 6b last frost occurs after April 15 so always be ready to protect your cauliflower if we have a late frost.

USDA Zone Info for Zone 6b

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°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 0°F.

Plants to Grow in Zone 6b

You may be interested in our other planting guides for Zone 6b.