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.

It's possible to estimate when it's a good idea to plant runner beans by checking out the USDA zone info for Nitro.

Planting Calendar for Runner beans

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

It's a bad idea to plant runner beans until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant runner beans in Nitro 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. Starting your runner beans indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Nitro. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Nitro may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Nitro you get a frost after April 15 so always be ready to protect your runner beans in the event of a late frost.

USDA Zone Info for Nitro

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Nitro

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