The USDA Zone info is a great tool for gardeners to help us figure out 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.

A common way of estimating when it's possible to plant green beans is to check out the USDA zone info for San Luis Obispo.

Planting Calendar for Green beans

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

Green beans require warm weather which means that you have to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant green beans in San Luis Obispo 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 green beans and expect a good harvest is probably September. Any later than that and your green beans may not have a chance to really do well. You can get started a few weeks earlier by starting your green beans indoors.

Last Frost Date

In San Luis Obispo the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for San Luis Obispo is not always accurate the actual date of last frost changes from year to year. Half of the time in San Luis Obispo you get a frost after February 15 so always be ready to cover your green beans if you have a surprise late frost.

USDA Zone Info for San Luis Obispo

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 San Luis Obispo

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