The USDA Zone info is a great tool for gardeners to help us estimate 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.

A common way of figuring out when it's possible to plant spinach is to consult the USDA zone info for San Gabriel.

Planting Calendar for Spinach

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

Spinach do well in moderate cold which means that you can get them planted earlier than other frost tender plants.

The earliest that you can plant spinach in San Gabriel 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 spinach and expect a good harvest is probably October. If you wait any later than that and your spinach may not have a chance to really do well. You can get started a couple of weeks earlier by starting your spinach indoors.

Last Frost Date

On average the last frost has passed is on January 31 in San Gabriel. You can expect an average low temperature of 30°F in the coldest months of winter.

Keep in mind that USDA zone info for San Gabriel may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in San Gabriel you get surprised by a frost after January 31 so just be sure to be ready to protect your spinach in the event of a late frost.

USDA Zone Info for San Gabriel

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 Gabriel

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