One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when you can plant aubrieta is to consult the USDA zone info for Diamond Bar.

Planting Calendar for Aubrieta

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

Aubrieta are moderately cold tolerant which means that you can start planting them earlier than more sensitive plants.

The earliest that you can plant aubrieta in Diamond Bar 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 aubrieta and expect a good harvest is probably October. If you wait any later than that and your aubrieta may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your aubrieta indoors.

Last Frost Date

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

Remember that USDA zone info for Diamond Bar is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Diamond Bar you get surprised by a frost after January 31 so be sure to be ready to protect your aubrieta in the event of a late frost.

USDA Zone Info for Diamond Bar

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 Diamond Bar

You may be interested in your other planting guides for Diamond Bar.