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When to Plant Green beans in Northfield, MN

One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to figure out when it's the best time to plant green beans by checking out the USDA zone info for Northfield.


Planting Calendar for Green beans

Frost tolerance for green beans: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Green beans do not do well in cold weather which tells us that it is necessary to wait until it warms up after the last frost has passed before you can plant them.

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

The earliest that you can plant green beans in Northfield 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 green beans and expect a good harvest is probably August. You probably don't want to wait any later than that or else your green beans may not have a chance to grow to maturity. If you are starting your green beans indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Northfield. It might get as low as -25°F during the coldest months of winter.

Remember that USDA zone info for Northfield may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Northfield there is a last frost after May 15 be ready to protect your green beans in the event of one of those late frosts.

USDA Zone Info for Northfield

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Northfield

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