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.

In Keene you can figure out when you can plant corn by looking at 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.

Corn are not cold tolerant which means that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant corn in Keene 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

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

Remember that USDA zone info for Keene is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Keene there is a last frost after April 15 be ready to protect your corn in the event of one of those late frosts.

USDA Zone Info for Keene

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 Keene

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