Green Roof

There is no sweeter place for a tiny xeric landscape than on a shed roof. This one was constructed by my friend David, a visionary gardener. When I climbed up a ladder to get a better look, I saw the expected sedums–but the big surprise was all the prickly pear cacti. Apparently they are shallow-rooted and completely suited to a green roof. Who knew?

July 21, 2019