Before planting it is a good idea to find your USDA Zone info to figure out 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 USDA zone info for Mill Valley can be reviewed to estimate when it's possible to plant pole beans.

Planting Calendar for Pole beans

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

It's probably a bad idea to plant pole beans until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant pole beans in Mill Valley 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. You probably don't want to wait any later than that or else your pole beans may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your pole beans indoors.

Last Frost Date

In Mill Valley the average date of last frost happens on January 31. You should expect an average low temperature of 30°F in the coldest months of winter.

It's important to remember that USDA zone info for Mill Valley may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Mill Valley it frosts late in the year after January 31 be ready to protect your pole beans in the event of one of those late frosts.

USDA Zone Info for Mill Valley

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 Low	30°F
Highest Expected Low	35°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 Mill Valley

You may be interested in your other planting guides for Mill Valley.