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

A way of getting a good idea when it's a good idea to plant cauliflower is to examine the USDA zone info for Gypsum.

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 little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant cauliflower in Gypsum 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 grow to maturity. You can get started a few weeks earlier by starting your cauliflower indoors.

Last Frost Date

In Gypsum the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Gypsum is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Gypsum it frosts late in the year after April 15 be ready to cover your cauliflower if you have a surprise late frost.

USDA Zone Info for Gypsum

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Gypsum

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