When to Plant Corn in Coatesville, PA

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of determining when it's a good idea to plant corn is to refer to the USDA zone info for Coatesville.


Planting Calendar for Corn

Frost tolerance for corn: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

Corn do not do well in cold weather which tells us that it's important to wait until it warms up after all chance of frost has passed 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 Coatesville 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. You probably don't want to wait any later than that or else your corn may not have a chance to grow to maturity. If you are starting your corn indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Coatesville. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Coatesville is an average the actual date of last frost will vary from year to year. Half of the time in Coatesville you get surprised by a frost after April 15 so just be sure to be ready to cover your corn if you have one of those late frosts.

USDA Zone Info for Coatesville

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 Coatesville

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