The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Tiffin you can figure out when it's possible to plant cauliflower by checking out the USDA zone info.

Planting Calendar for Cauliflower

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

Since cauliflower are moderately cold tolerant you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant cauliflower in Tiffin 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 really do well. If you are starting your cauliflower indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Tiffin. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Tiffin is an average and the actual date of last frost will vary from year to year. Since half of the time in Tiffin you get surprised by a frost after April 15 be ready to protect your cauliflower if you have a late frost.

USDA Zone Info for Tiffin

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Tiffin

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