Answer: Once you have plants growing, I'm sure it's a spectacular sight up there! The first thing to consider is that any perennial vines growing in containers will need extra insulation around the pots in winter. Even hardy plants, like Actinidia arguta (hardy kiwi), have roots that are easily damaged without proper insulation. Wrap thick foam, hay bales, etc., around growing containers for this purpose.
With proper insulation, you could also grow trumpet vine (Campsis radicans), perennial sweet pea, silver lace vine, and honeysuckle. Most of these are vigorous growers, so you'll have to prune them to keep them on the trellis. Enjoy!
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