One of the first steps you take when you are estimating your gardening schedule is find your 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.

A way of making a decision about when it's the best time to plant corn is to use the USDA zone info for Grain Valley.

Planting Calendar for Corn

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

It's a bad idea to plant corn until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant corn in Grain Valley 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. Any later than that and your corn may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your corn indoors.

Last Frost Date

In Grain Valley the average date of last frost happens on April 15. It might get as low as -10°F during the coldest months of winter.

It's important to remember that USDA zone info for Grain Valley is just an average and the actual date of last frost will vary from year to year. Half of the time in Grain Valley there is a last frost after April 15 so be sure to be ready to cover your corn if you have a late frost.

USDA Zone Info for Grain Valley

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Grain Valley

You may be interested in your other planting guides for Grain Valley.