One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

You can figure out when it's a good idea to plant corn in Post Falls by referring to the USDA zone info.

Planting Calendar for Corn

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

It's not a good idea to plant corn until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant corn in Post Falls 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 fully mature. You can get started a little bit earlier by starting your corn indoors.

Last Frost Date

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

Since the USDA zone info for Post Falls is just an average the actual date of last frost will vary from year to year. Since half of the time in Post Falls last frost occurs after April 15 be ready to cover your corn if you have one of those late frosts.

USDA Zone Info for Post Falls

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 Low	0°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 Post Falls

You may be interested in your other planting guides for Post Falls.