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

The USDA zone info for Harwood Heights can be used to estimate when it's possible to plant snap beans.

Planting Calendar for Snap beans

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

You should not plant snap beans until after the last frost has passed because they require warm weather.

The earliest that you can plant snap beans in Harwood Heights 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. Any later than that and your snap beans may not have a chance to fully mature. You can get started a few weeks earlier by starting your snap beans indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Harwood Heights. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Harwood Heights is just an average the actual date of last frost will vary from year to year. Half of the time in Harwood Heights it frosts late in the year after April 15 so make sure that you are prepared to protect your snap beans in the event of a surprise late frost.

USDA Zone Info for Harwood Heights

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 Harwood Heights

You may be interested in your other planting guides for Harwood Heights.