Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Dearborn you can figure out when it's a good idea to plant cauliflower by checking out the USDA zone info.

Planting Calendar for Cauliflower

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

Cauliflower do well in moderate cold which means that you can plant them earlier than other frost tender plants.

The earliest that you can plant cauliflower in Dearborn 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. Any later than that and your cauliflower may not have a chance to fully mature. Starting your cauliflower indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Dearborn. You can expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that USDA zone info for Dearborn is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Dearborn it frosts late in the year after April 15 be ready to cover your cauliflower in the event of a late frost.

USDA Zone Info for Dearborn

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 Low	0°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 Dearborn

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