I'm looking for a privacy curtain of plants on a raised covered deck. Evergreen Clematis keeps coming up in the conversations I've had with friends and family. Thought I'd turn to the experts out there.... Particulars: - planted in pots or planters - Southern exposure - 4-5 hrs direct sunlight - approx. 8' tall x 16' long - not too thick as I don't want it to encroach too much of the deck Does this seem like a good choice? How many plants do you think I should purchase? Lattice or net for anchor? Do these plants require lots of pruning? Do they leave much debris around? Any help would be appreciated!