One of the first steps you take when you are figuring out your gardening schedule is find your 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.

One way of estimating when it's the best time to plant cauliflower is to examine the USDA zone info for Garden Grove.

Planting Calendar for Cauliflower

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

Cauliflower tend to make it in a little bit of cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant cauliflower in Garden Grove 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 fully mature. 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

In Garden Grove the average date of last frost happens on January 31. It might get as low as 35°F during the coldest months of winter.

It's important to remember that USDA zone info for Garden Grove is not always accurate and the actual date of last frost is different every year. Half of the time in Garden Grove you get a frost after January 31 so make sure that you are prepared to cover your cauliflower if you have a surprise late frost.

USDA Zone Info for Garden Grove

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Garden Grove

You may be interested in your other planting guides for Garden Grove.