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.

The USDA zone info for Thatcher should be read to determine when it's the best time to plant cauliflower.

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 mild cold which tells us that you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant cauliflower in Thatcher 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. If you wait any later than that and your cauliflower may not have a chance to fully mature. Starting your cauliflower indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Thatcher. In the coldest months of winter you can expect an average low temperature of 15°F.

Keep in mind that USDA zone info for Thatcher is just an average and the actual date of last frost changes from year to year. Since half of the time in Thatcher it frosts late in the year after March 15 be ready to protect your cauliflower if you have a surprise late frost.

USDA Zone Info for Thatcher

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

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

Plants to Grow in Thatcher

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