When to Plant Corn in Zone 2b

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.

The first chance to plant corn in Zone 2b should be figured out by reviewing the USDA zone info.

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Planting Calendar for Corn

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

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

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 Zone 2b is May. However, you really should wait until June 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 grow to maturity. Starting your corn indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 2b the average date of last frost happens on May 15. You can expect an average low temperature of -45°F in the coldest months of winter.

It's important to remember that USDA zone info for Zone 2b is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Zone 2b last frost occurs after May 15 so be sure to be ready to cover your corn in the event of a surprise late frost.

USDA Zone Info for Zone 2b

Here is the info for USDA Zone 2b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)August 15
Lowest Expected Low-45°F
Highest Expected Low-40°F

This means that on a really cold year, the coldest it will get is -45°F. On most years you should be prepared to experience lows near -40°F.

Plants to Grow in Zone 2b

You may be interested in your other planting guides for Zone 2b.