When can I plant Brussels Sprouts in Zone 10a

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

The first opportunity to plant brussels sprouts in Zone 10a should be estimated by looking at the USDA zone info.


Planting Calendar for Brussels Sprouts

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

Brussels Sprouts are one of those plants that can tolerate a little bit of cold weather which means that you can start planting them earlier than other plants that might not handle the cold.

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

The earliest that you can plant brussels sprouts in Zone 10a 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 brussels sprouts and expect a good harvest is probably October. If you wait any later than that and your brussels sprouts may not have a chance to really do well. If you are starting your brussels sprouts indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Zone 10a the average date of last frost happens on January 31. In the coldest months of winter we can expect an average low temperature of 30°F.

Just be sure to remember 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 10a and it will vary from year to year. Since half of the time in Zone 10a last frost occurs after January 31 be ready to protect your brussels sprouts if we have a late frost.

USDA Zone Info for Zone 10a

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low30°F
Highest Expected Low35°F

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

Plants to Grow in Zone 10a

You may be interested in our other planting guides for Zone 10a.