The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant string beans in Donna can be estimated by checking out 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 has passed.

You can not plant string beans until after the last frost because they require warm weather.

The earliest that you can plant string beans in Donna is March. However, you really should wait until April 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 September. Any later than that and your string beans may not have a chance to really do well. Starting your string beans indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Donna the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Donna may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Donna last frost occurs after February 15 so make sure that you are ready to protect your string beans if you have a surprise late frost.

USDA Zone Info for Donna

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Donna

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