This is such a great customizable solution to hang plant containers. The pots and their water catching drips sit inside the boxes. I've got a couple of wooden CD crates I now feel inspired to paint yellow and fill with terracotta potted plants.
Instead of flower boxes, put cushions for seating. Pergola w/ flower boxes, Just recently completed this project for a friend. Very large with large flower boxes., Custom flower boxes ready for planting, Patios & Decks Design