When to Plant Sweet corn in Deerfield, IL

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant sweet corn in Deerfield can be estimated by checking out the USDA zone info.


Planting Calendar for Sweet corn

Frost tolerance for sweet corn: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

You can plant sweet corn just a tiny bit earlier in the year because they are barely cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant sweet corn
Possibly ok, but a risky time to plant sweet corn
Probably not a good time to plant sweet corn

The earliest that you can plant sweet corn in Deerfield is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sweet corn and expect a good harvest is probably August. If you wait any later than that and your sweet corn may not have a chance to really do well. Starting your sweet corn indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Deerfield. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Deerfield may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Deerfield last frost occurs after April 15 so always be ready to protect your sweet corn in the event of a surprise late frost.

USDA Zone Info for Deerfield

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 Deerfield

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