Hi Ron, You may want to erect a trellis system around the pallets, then use a fast growing, evergreen vine (I'm not sure what that would be in S CA--around here I'd probably choose an evergreen clematis, or one of the honeysuckles or jasmines that are evergreen) on the trellis. That way the pallets can be changed out, bumped, whatever, and the trellising system is separate and the planting won't be disturbed. We're actually in the process of doing the same thing. We're using reed fencing to screen the compost area, then are doing a series of shrubs and vines to cover it. Kari Kari Whittenberger-Keith kariwk@oregon.uoregon.edu Managing Editor, Old House Chronicle http://www.oldhousechronicle.com