Joy, Jeanie and Cinta, I'm with you with the physical limitations, but no way am I going to give up gardening.
with Frillylily, there must be a way to compromise with your DH about a concrete garden. You all are on to something. Gardening does keep us healthy. With FM, you have to keep flexible or you will turn into concrete when your muscles stiffen. Surgery is a No for me as far as degenerative spine, also. I'll just keep taking my pain meds, using my bed buddy, my beloved heating pad and keep gardening to my hearts content. It's the world's best therapy.