One of the best tools that you have as gardeners to help us figure out your 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 your area.

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

Planting Calendar for Corn

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

You should not plant corn until after the last frost because they require warm weather.

The earliest that you can plant corn in Parker 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 really do well. You can get started a few weeks earlier by starting your corn indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Parker. It might get as low as -15°F during the coldest months of winter.

Remember that USDA zone info for Parker is just an average and the actual date of last frost will vary from year to year. Since half of the time in Parker there is a last frost after April 15 be ready to protect your corn in the event of a surprise late frost.

USDA Zone Info for Parker

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Parker

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