One of the first steps you take when you are making a decision about 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 Mill Valley should be used to determine when it's possible to plant corn salad.

Planting Calendar for Corn salad

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

Corn salad require warm weather which means that you need to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant corn salad 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 corn salad and expect a good harvest is probably September. If you wait any later than that and your corn salad may not have a chance to really do well. Starting your corn salad indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Mill Valley 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.

Since the USDA zone info for Mill Valley is not always accurate the actual date of last frost changes from year to year. Since half of the time in Mill Valley you get a frost after January 31 be ready to cover your corn salad in the event of a late frost.

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.