I'm thinking of going to Home Depot to look for hanging stuff...but there it's easy to get dazzled by choices. ;-) On the other hand, I could ask how much it costs to rent a rototiller. Maybe worth the trip.
Geraniums can take sun and heat, no? Whatever I put down there will be vey exposed.
Geraniums would be able to take it, they like heat. You'll have to water whatever you put out there every day. I barely get enough sun for Geranius even at my gate, but I'm gonna try. My petunias sure did good out there.