When to Plant String beans in Keene, NH

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant string beans in Keene should be figured out by using the USDA zone info.


Planting Calendar for String beans

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

String beans are not cold tolerant which means that it's necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

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

The earliest that you can plant string beans in Keene 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 string beans and expect a good harvest is probably August. You probably don't want to wait any later than that or else your string beans may not have a chance to fully mature. Starting your string beans indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Keene the average date of last frost happens on April 15. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Keene is just an average the actual date of last frost will vary from year to year. Half of the time in Keene you get surprised by a frost after April 15 so make sure that you are prepared to cover your string beans if you have a late frost.

USDA Zone Info for Keene

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 Keene

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