A lattice fence and arborvitae provide an attractive low-cost solution. Shown here is the Eastern arborvitae (Thuija occidentalis), which will eventually grow to about 20 to 30 feet high and 10 to 12 feet wide. - My Wonder Garden
We could use this to block the view from outside, on the side of the house! What could be better than a planter and trellis in one? Make it mobile and self-watering, too, and you've got a really handy rolling Planter with Trellis.