When can I plant Sweet corn in Zone 7a

One of the best tools that we have as gardeners to help us figure out our gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

By reviewing the USDA zone info for Zone 7a it's a good idea to determine when to plant sweet corn.


Planting Calendar for Sweet corn

Frost tolerance for sweet corn: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

Sweet corn do well in mild cold which tells us that you can plant them slightly earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant sweet corn in Zone 7a is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sweet corn and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sweet corn may not have a chance to fully mature. You can get started a few weeks earlier by starting your sweet corn indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Zone 7a. We should expect an average low temperature of 0°F in the coldest months of winter.

It's important to remember that USDA zone info for Zone 7a is just an average and our actual date of last frost will vary from year to year. Since half of the time in Zone 7a we get a frost after April 15 be ready to cover your sweet corn in the event of a late frost.

USDA Zone Info for Zone 7a

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Zone 7a

You may be interested in our other planting guides for Zone 7a.