When to Plant Snap beans in Champaign, 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.

In Champaign you can determine when you can plant snap beans by reviewing the USDA zone info.

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Planting Calendar for Snap beans

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

It's probably a bad idea to plant snap beans until after the last frost when the weather gets warmer because they do not do well in cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant snap beans
Possibly ok, but a risky time to plant snap beans
Probably not a good time to plant snap beans

The earliest that you can plant snap beans in Champaign 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 snap beans and expect a good harvest is probably August. If you wait any later than that and your snap beans may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your snap beans indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Champaign 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 Champaign you get surprised by a frost after April 15 be ready to cover your snap beans if you have a surprise late frost.

USDA Zone Info for Champaign

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 Champaign

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