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

By reviewing the USDA zone info for Poway it's possible to estimate when you can plant runner beans.

Planting Calendar for Runner beans

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

It's not a good idea to plant runner beans until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant runner beans in Poway 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 runner beans and expect a good harvest is probably September. You probably don't want to wait any later than that or else your runner beans may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your runner beans indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Poway. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Poway is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Poway it frosts late in the year after February 15 so make sure that you are prepared to protect your runner beans in the event of one of those late frosts.

USDA Zone Info for Poway

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 Poway

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