When can I plant Corn in Zone 12a

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

The earliest that you can plant corn in Zone 12a can be figured out by reviewing the USDA zone info.


Planting Calendar for Corn

Frost tolerance for corn: Not tolerant of frost.
When you should plant them: After the last frost.

Corn are not cold tolerant which means that it's important to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

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

The earliest that you can plant corn in Zone 12a 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 corn and expect a good harvest is probably November. You probably don't want to wait any later than that or else your corn may not have a chance to grow to maturity. Starting your corn indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 12a it never frosts. In the coldest months of winter we can expect an average low temperature of 50°F.

Always keep in mind that our actual date of last frost is an average because it is based on the USDA zone info for Zone 12a and it changes from year to year. Since it never frosts in Zone 12a you do not have to be ready to protect your corn if we have a late frost.

USDA Zone Info for Zone 12a

Here is the info for USDA Zone 12a.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low50°F
Highest Expected Low55°F

This means that on a really cold year, the coldest it will get is 50°F. On most years you should be prepared to experience lows near 55°F.

Plants to Grow in Zone 12a

You may be interested in our other planting guides for Zone 12a.