When to Plant Corn in Mentor, OH

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 earliest that you can plant corn in Mentor should be estimated by referring to the USDA zone info.


Planting Calendar for Corn

Frost tolerance for corn: Not tolerant of frost.
When to plant: After the last frost has passed.

It's probably not a good idea to plant corn until after the last frost because they require warm weather.

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 Mentor is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant corn and expect a good harvest is probably August. If you wait any later than that and your corn may not have a chance to really do well. Starting your corn indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Mentor. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Mentor may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Mentor last frost occurs after April 15 so make sure that you are ready to cover your corn if you have a late frost.

USDA Zone Info for Mentor

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

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

Plants to Grow in Mentor

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