You dig post holes in a zig-zag pattern--like a series of W's, about a foot apart--then place sound redwood branches, 3 in each hole. Point one forward, one back, keep one in the middle. Then thread a few horizontals through, and wire them loosely together. Play with the pattern until you're satisfied, then backfill the holes with soil and tamp it into the holes around the bases of the branches with the handle of a hoe. Tamp firmly. Then start tightening the wires.