Cinder block raised bed, using the block cavities for planting. Ideas for what to plant in the small holes are strawberries, creeping herbs (prostrate rosemary, prostrate thyme), onions/chives, beneficial-attracting flowers. This forum post has a link to Youtube videos showing construction.
8 raised bed garden ideas | Insert the hoops | Sunset.com To cover newly planted seedlings with bird netting or season-extending row covers, simply bend two 6-foot pieces of ½-inch PVC pipe to form semi-circles, and slip their ends into the 1-inch pipes inside the bed. Then drape the bird netting or row covers over them.