Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant runner beans in Red Bluff should be figured out by using the USDA zone info.

Planting Calendar for Runner beans

Frost tolerance for runner beans:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since runner beans require warm weather you have to wait until after the last frost before you can plant them.

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

Last Frost Date

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

Just be sure to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Red Bluff and it can change quite a bit from year to year. Half of the time in Red Bluff last frost occurs after February 15 so always be ready to cover your runner beans if you have a surprise late frost.

USDA Zone Info for Red Bluff

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 Red Bluff

You may be interested in your other planting guides for Red Bluff.