Vines for green walls

Another one that is beautiful and well behaved is climbing hydrangea. Gorgeous. Doesnt attach well, so needs to be tied up as it goes, and looks better pruned, but very lovely deciduous climber. It probably won't go more than two or three stories, though.

This is another virtue of the good varieties of Parthenocissus tricuspidatas -- once established, they can go many stories high. I dont know what the limit is, but five stories is not unusual.

Virginia Creeper, Parthenocissus cinqufolia, isn't as vigorous a grower as the tricuspidatas. It takes more years to get going and I don't know of three stories or better coverage. Maybe someone back East know more about it? It has the virtue of being a US native, however.