The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when you can plant aubrieta is to look at the USDA zone info for Wickenburg.

Planting Calendar for Aubrieta

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

Since aubrieta are one of those plants that can tolerate a little bit of cold weather you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant aubrieta in Wickenburg 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. Any later than that and your aubrieta may not have a chance to really do well. Starting your aubrieta indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Wickenburg. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Wickenburg is an average the actual date of last frost will vary from year to year. Since half of the time in Wickenburg it frosts late in the year after February 15 be ready to protect your aubrieta in the event of one of those late frosts.

USDA Zone Info for Wickenburg

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Wickenburg

You may be interested in your other planting guides for Wickenburg.