Build a basic garden bench with a stack of cinder ... of gravel as the base and then topping with potting soil. If you don’t have a cinder block for making a planter, you can make a DIY concrete ...

Alternatively, you could use a potting bench with a slatted, mesh, or wire top (like this one from Wayfair) or DIY one with coated wire shelves supported by cinder blocks on each end. The end ...