I note photinia to be hardy to Zone 6...

"Pam - gardengal" wrote in message
news:bWWIb.714783$Tr4.1794502@attbi_s03...

"Mogie" wrote in message
...
Mountain Laurel


Kalmias are neither fast growing nor will they ever be tall enough outside
of their native environment. Photinias will not be winter hardy. It is
unlikely Leylands would live long enough to attain their full mature
height
( and VERY few ever get as big as 80-100'), but they certainly are fast
enough and provide excellent screening potential. And can be sheared to
remain at desired height. Thuja 'Green Giant' certainly offers the ideal
solution - very hardy in your zone, fast growth rate (2-5' per year),
evergreen and should be widely available.

pam - gardengal