As long as youve got a blank wall or a bare fence that needs beautifying, you can tend edibles, annuals, even perennials with these vertical gardening ideas — all of which inspire high hopes for the season ahead. - My Secret Garden
this is one of the best water wall ideas i have found. really simple and let's kids turn the bottles to direct water different places. also keeps bottle caps to stop water! i am going to try this and use other containers too! would work well on wood too.