I finally broke down and bought some annual flowers. Last fall Dennis and I pulled up all the cactus that were in a small contained planter on the southwest corner of the house. Too much success as they were overflowing and would leave prickers if someone walked too close. Today Moss Roses have been put in that area. You can be sure that in the spring of 2018 I will leave the soil undisturbed for a long time to see if they have self seeded. I know Mom always had Moss Roses that volunteered.