When to Plant Pole beans in Millbrae, CA

One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Millbrae can be reffered to in order to figure out when you can plant pole beans.


Planting Calendar for Pole beans

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

You really shouldn't plant pole beans until after the last frost when the weather gets warmer because they require warm weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant pole beans
Possibly ok, but a risky time to plant pole beans
Probably not a good time to plant pole beans

The earliest that you can plant pole beans in Millbrae 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 pole beans and expect a good harvest is probably September. Any later than that and your pole beans may not have a chance to fully mature. If you are starting your pole beans indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Millbrae the average date of last frost happens on January 31. In the coldest months of winter you should expect an average low temperature of 30°F.

Always keep in mind that USDA zone info for Millbrae may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Millbrae last frost occurs after January 31 so make sure that you are ready to cover your pole beans in the event of a surprise late frost.

USDA Zone Info for Millbrae

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low30°F
Highest Expected Low35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Millbrae

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