Putting raised beds on concrete, Greenhouse on Concrete
Most of my backyard is concrete. I'd like to build raised beds out of wood on the concrete. How would you do this?
1) Put the bottomless box right on the concrete and fill it with soil
2) Put the bottomless box on concrete, put rocks in the bottom, fill it with soil
3) Put a wood bottom on the box, drill holes in the bottom, raise the box on bricks
I'm also planning on buying a greenhouse. How do I anchor this on the concrete?