Before planting it is a good idea to find your USDA Zone info to determine 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.

One way of estimating when it's the best time to plant mustard is to refer to the USDA zone info for Torrance.

Planting Calendar for Mustard

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

It's probably not a good idea to plant mustard until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant mustard in Torrance 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. You probably don't want to wait any later than that or else your mustard may not have a chance to really do well. You can get started a couple of weeks earlier by starting your mustard indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Torrance. In the coldest months of winter you can expect an average low temperature of 35°F.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Torrance and it is different every year. Since half of the time in Torrance it frosts late in the year after January 31 be ready to protect your mustard if you have a surprise late frost.

USDA Zone Info for Torrance

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Torrance

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