One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to estimate when it's a good idea to plant string beans by checking out the USDA zone info for San Leandro.

Planting Calendar for String beans

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

It's probably a bad idea to plant string beans until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant string beans in San Leandro is February. However, you really should wait until March 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. You probably don't want to wait any later than that or else your string beans may not have a chance to grow to maturity. Starting your string beans indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In San Leandro the average date of last frost happens on January 31. You can expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for San Leandro may not be accurate from year to year the actual date of last frost is different every year. Half of the time in San Leandro last frost occurs after January 31 so always be ready to protect your string beans in the event of one of those late frosts.

USDA Zone Info for San Leandro

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in San Leandro

You may be interested in your other planting guides for San Leandro.