I believe it is Vitex Trifolia

Here's an answer to the Arabian Lavender question from the arid_gardener list serve.

I was a co-captain at garden #6 on the garden tour and also made up the plant list. I believe the plant you are refering to is the Arabian Lilac (it was identified as Arabian Lavender) that was growing in the center bed of the front yard. It's botanical name is Vitex Trifolia 'Purpurea' the top of the leaves are green while the underside is purple. It can be found at Summerwinds Nurseries and is grown by Monrovia. If you go to www.monrovia.com you can find photos and growing tips.

Christine Bahto
Master Gardener, Maricopa County, U of A Cooperative Extension

Thank you so much. Who would think lilac in AZ.

Terry

They also have this at Berridge's and Tera's nursery.

my arabian lavendar is looking very droopy and watering is not helping. does anyone have a remedy?