re: Hanging planter out of cedar fence board

I like that idea about blackening the boards by lightly burning. Before the use of metals were known to man, they make arrows and spears out of wood sharpened to a point and then set over a fire just long enough to lightly burn the wood and that made the points harder.

Also, you many want to think about stapling some landscape fabric on the inside before putting your soil in them so it doesn't run out the drain holes you will need to drill in the bottoms.