Don't know if you've gotten other responses yet, but I just saw your post
about screening with trees. One of my favorite trees to use is Cryptomeria
Japonica 'Yoshino'. It's a beautiful, fast growing evergreen with great
texture and color. It is hardy in zones 6-8 and doesn't have disease or
pest problems. I just also planted Cupressus 'arizonica' or Carolina
Sapphire trees that are very fast growing between my driveway and our
neighbors lawn. They are a blue/grey color with reddish tinges in the
winter months. Many people plant Leyland Cypress trees because they are
cheap and very fast growing. They are also a very pretty green color. The
only drawback is that Bagworms like them and will sometimes destroy the
tree. Once they invade, it's very difficult to eradicate all of them.

Try looking on google for the Cryptomeria and Cupressus and you'll see what
I'm talking about.

Good luck,

Penny
Zone 7b - North Carolina
"daecc" wrote in message
om...
I am looking for something that would make a 20' to 35' tall privacy
screen. Agressive rooting would be a plus as I'm planting along the
top edge of a large hill. Also, medium to wide span would be a plus.
And of course, I want it fast. "Weed" trees and shrubs are fine with
me.

My main concern is height and speed. I'm willing to sacrifice a
little height to gain faster growth. The Washington Hawthorn sounds
nice, but isn't as fast as I want. Hybrid Willows grow too tall.
Olives aren't quite tall enough, but would suffice if they met my
other criteria. The Siberian Elm is a little taller than I'm looking
for (around 45'), but could work since it can be trimmed.

I am basing this on reading catalogs/advertisements. However, I'm
looking for practical experience now. I live in SE Ohio (Zone 6).

Thanks!