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

The USDA zone info for Zone 9a should be reffered to in order to figure out when to plant ajuga.

Planting Calendar for Ajuga

Frost tolerance for ajuga:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant ajuga earlier in the year because they do well in cold.

The earliest that you can plant ajuga in Zone 9a 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 ajuga and expect a good harvest is probably October. Any later than that and your ajuga may not have a chance to grow to maturity. Starting your ajuga indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Zone 9a. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for Zone 9a may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Zone 9a you get surprised by a frost after February 15 so just be sure to be ready to cover your ajuga in the event of one of those late frosts.

USDA Zone Info for Zone 9a

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 Zone 9a

You may be interested in your other planting guides for Zone 9a.