When to Plant Cauliflower in Brentwood, CA

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

In Brentwood you can estimate when it's the best time to plant cauliflower by reviewing 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.

You can plant cauliflower a bit earlier in the year because they are moderately cold tolerant.

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 Brentwood is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant cauliflower and expect a good harvest is probably October. 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 little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Brentwood. In the coldest months of winter you should expect an average low temperature of 25°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Brentwood and it changes from year to year. Since half of the time in Brentwood last frost occurs after February 15 be ready to protect your cauliflower if you have a late frost.

USDA Zone Info for Brentwood

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low25°F
Highest Expected Low30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Brentwood

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