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.

One way of making a decision about when to plant string beans is to examine the USDA zone info for Princeton.

Planting Calendar for String beans

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

It's not a good idea to plant string beans until after the last frost has passed because they require warm weather.

The earliest that you can plant string beans in Princeton 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. If you wait any later than that and your string beans may not have a chance to fully mature. You can get started a little bit earlier by starting your string beans indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Princeton. You can expect an average low temperature of -5°F in the coldest months of winter.

Keep in mind that USDA zone info for Princeton is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Princeton last frost occurs after April 15 so always be ready to protect your string beans in the event of a surprise late frost.

USDA Zone Info for Princeton

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 Princeton

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