It depends on your climate. If it's very hot and/or dry, then don't. Wait until it's cooler and damper.

USDA zone 8 or warmer, plant in the fall, maybe in the spring, also, if in a cool-summer climate, such as the Pacific Northwest. In zone 7, plant in the spring. Colder than zone 7, it will be hard to keep alive through the winter.

Glad you know about your own zones, Tug! I certainly don't. :-(((

It would make it easier if guests told us where they are.

There's a fairly good map and key at the following address:

http://www.usna.usda.gov/Hardzone/hzm-sw1.html

A little blurry at high magnification, but the key will give you an idea about normal winter lows in the zones.

I think I'll leave it to you....thanks, though!