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 Gabriel can be used to estimate when it's a good idea to plant calendula.

Planting Calendar for Calendula

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

Calendula do well in moderate cold which tells us that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant calendula 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 calendula and expect a good harvest is probably October. Any later than that and your calendula may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your calendula indoors.

Last Frost Date

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

It's important to remember that USDA zone info for San Gabriel is not always accurate and the actual date of last frost changes from year to year. Half of the time in San Gabriel you get a frost after January 31 so be sure to be ready to cover your calendula in the event of a surprise 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.