I had a space at the end of one of my beds that was too narrow for another block of daylilies so I sowed seeds of the little 'Cut and Come Again' zinnias. They came right up and have bloomed wonderfully. They add a lot of color to what would be a bare space. I have planted tall sunflowers behind a bed of tall daylilies. They are about five feet tall and are about to bloom. They nicely block the view of a weedy area.