One of the best tools that you have as gardeners to help us determine your 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 your area.

You can figure out when it's a good idea to plant brussels sprouts in Campbell by using the USDA zone info.

Planting Calendar for Brussels Sprouts

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

You can plant brussels sprouts just a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant brussels sprouts in Campbell 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. You probably don't want to wait any later than that or else your brussels sprouts may not have a chance to grow to maturity. If you are starting your brussels sprouts indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Campbell the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 25°F.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Campbell and it can change quite a bit from year to year. Half of the time in Campbell last frost occurs after February 15 so be sure to be ready to cover your brussels sprouts in the event of a late frost.

USDA Zone Info for Campbell

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 Low	25°F
Highest Expected Low	30°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 Campbell

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