One of the first steps you take when you are figuring out 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.

A common way of determining when to plant runner beans is to refer to the USDA zone info for Chula Vista.

Planting Calendar for Runner beans

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

Since runner beans are not cold tolerant you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant runner beans in Chula Vista 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 runner beans and expect a good harvest is probably September. Any later than that and your runner beans may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your runner beans indoors.

Last Frost Date

On average the last frost is on January 31 in Chula Vista. It might get as low as 35°F during the coldest months of winter.

Remember that USDA zone info for Chula Vista is an average and the actual date of last frost will vary from year to year. Since half of the time in Chula Vista it frosts late in the year after January 31 be ready to protect your runner beans in the event of a surprise late frost.

USDA Zone Info for Chula Vista

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Chula Vista

You may be interested in your other planting guides for Chula Vista.