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.

In Porterville you can estimate when it's possible to plant string beans by reviewing 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.

It's not a good idea to plant string beans until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant string beans in Porterville 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. If you wait any later than that and your string beans may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your string beans indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Porterville. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Porterville may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Porterville you get surprised by a frost after February 15 be ready to protect your string beans if you have one of those late frosts.

USDA Zone Info for Porterville

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 Porterville

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