Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. 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 San Pablo should be reviewed to determine when it's the best time to plant mustard.

Planting Calendar for Mustard

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

Since mustard do not do well in cold weather it's necessary to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant mustard in San Pablo 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 mustard and expect a good harvest is probably September. If you wait any later than that and your mustard may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your mustard indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in San Pablo. It might get as low as 30°F during the coldest months of winter.

It's important to remember that USDA zone info for San Pablo is an average and the actual date of last frost changes from year to year. Half of the time in San Pablo you get surprised by a frost after January 31 so make sure that you are ready to cover your mustard if you have one of those late frosts.

USDA Zone Info for San Pablo

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 San Pablo

You may be interested in your other planting guides for San Pablo.