Hi Angie
You can get detailed information on most Cold Hardy Palms and other exotic trees and plants at the
Hooked On Palms web site at
HOOKED ON PALMS . It has been one of the best easy to use sites I have found on Cold hardy palms. Most if not all your questions will be answered at that site. It is geared for the Pasific NW but the information applys to all. Also they do ship plants all over the US.
have a great day.
LeRoy