One of the first steps you take when you are making a decision about 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.

By using the USDA zone info for Patterson you will be able to estimate when it's a good idea to plant runner beans.

Planting Calendar for Runner beans

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

You should not plant runner beans until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant runner beans in Patterson 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 really do well. You can get started a little bit earlier by starting your runner beans indoors.

Last Frost Date

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

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Patterson and it changes from year to year. Since half of the time in Patterson it frosts late in the year after February 15 be ready to cover your runner beans in the event of a surprise late frost.

USDA Zone Info for Patterson

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 Patterson

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