One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of making a decision about when it's possible to plant green beans is to consult the USDA zone info for Zone 1b.

Planting Calendar for Green beans

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

Since green beans do not do well in cold weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant green beans in Zone 1b is June. However, you really should wait until July 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 July. If you wait any later than that and your green beans may not have a chance to fully mature. 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 June 15 in Zone 1b. It might get as low as -55°F during the coldest months of winter.

Remember that USDA zone info for Zone 1b is an average and the actual date of last frost is different every year. Half of the time in Zone 1b last frost occurs after June 15 so make sure that you are ready to protect your green beans if you have a late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)	June 15
Average Date of First Frost (fall)	July 15
Lowest Expected Low	-55°F
Highest Expected Low	-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in your other planting guides for Zone 1b.