When to Plant Cauliflower in Dover, NH

One of the best tools that you have as gardeners to help us figure out 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 to plant cauliflower in Dover by using 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.

You can plant cauliflower a little bit earlier in the year because they do well in moderate cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant cauliflower
Possibly ok, but a risky time to plant cauliflower
Probably not a good time to plant cauliflower

The earliest that you can plant cauliflower in Dover 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. You probably don't want to wait any later than that or else your cauliflower may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your cauliflower indoors.

Last Frost Date

On average the last frost is on April 15 in Dover. It might get as low as -15°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Dover and it is different every year. Half of the time in Dover there is a last frost after April 15 so make sure that you are ready to protect your cauliflower if you have a late frost.

USDA Zone Info for Dover

Here is the info for USDA Zone 5b.

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

Plants to Grow in Dover

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