One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant erysimum in San Gabriel can be determined by checking out the USDA zone info.

Planting Calendar for Erysimum

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

Since erysimum are one of those plants that can tolerate a little bit of cold weather you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant erysimum 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 erysimum and expect a good harvest is probably October. Any later than that and your erysimum may not have a chance to really do well. Starting your erysimum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is January 31 in San Gabriel. 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 San Gabriel is just an average and the actual date of last frost will vary from year to year. Since half of the time in San Gabriel last frost occurs after January 31 be ready to cover your erysimum 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.