We use two rain barrels to collect rain water and have a third waiting to be installed this spring. We compost using a backyard composter; we received the composter and the rain barrels through a City of Chicago-sponsored program. We don't use any pesticides, but we do use the compost we make and some that we buy. We use an organic fertilizer for the roses and the acid-loving plants.
We carried rocks back from our meditation center out of the city and some from my hometown of Saint Paul, Minnesota, to add texture to the garden and to use as stepping stones. I also used a large geode that was given to me as a gift many years ago, so all of the stones are special to us.