The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to estimate when it's the best time to plant mustard greens by looking at the USDA zone info for La Habra.

Planting Calendar for Mustard greens

Frost tolerance for mustard greens:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Mustard greens can survive in moderate cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant mustard greens in La Habra is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant mustard greens and expect a good harvest is probably October. Any later than that and your mustard greens may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your mustard greens indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in La Habra. In the coldest months of winter you should expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for La Habra is an average and the actual date of last frost will vary from year to year. Half of the time in La Habra you get surprised by a frost after January 31 so make sure that you are prepared to protect your mustard greens in the event of a surprise late frost.

USDA Zone Info for La Habra

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 La Habra

You may be interested in your other planting guides for La Habra.