hi linda, I am in Ohio, used to be zone 5 but they are saying we're zone 6 now. Altissimo is a tough rose I have moved it 3 times and it is hanging in there and starting to take hold. It dies to the ground in a bad winter so you may need to winter protect if you live in a harsh area. But it seems to bounce back well each spring.
roseberri

It's more like a tall, upright HT here between Lakes Huron and Erie, with die-back in winter, growing to about 6 or 7', with lovely, red single blooms and stiff canes. A keeper. No scent though.
Steve

Thanks Roseberri and elks!
It sounds like it is worth a try. Does this one rebloom?

Absolutely!
Steve

I don't have it myself but several people in my local area rose societies do and they say it grows and winters like a champ for them. It won Best of Show a couple of years ago with a huge (7") magnificent bloom!