When to Plant Runner beans in Yorkville, IL

One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when you can plant runner beans is to use the USDA zone info for Yorkville.

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Planting Calendar for Runner beans

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

It's not a good idea to plant runner beans until after the last frost when the weather gets warmer because they are not cold tolerant.

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

The earliest that you can plant runner beans in Yorkville 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 runner beans and expect a good harvest is probably August. You probably don't want to wait any later than that or else your runner beans may not have a chance to really do well. You can get started a few weeks earlier by starting your runner beans indoors.

Last Frost Date

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

Since the USDA zone info for Yorkville is an average the actual date of last frost changes from year to year. Half of the time in Yorkville there is a last frost after April 15 so be sure to be ready to protect your runner beans if you have one of those late frosts.

USDA Zone Info for Yorkville

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 Yorkville

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