20 RED PRAIRIE CONEFLOWER Ratibida Columnifera Flower Seeds BLOOM TIME: Summer HARDINESS ZONE: 3 - 10 PLANT HEIGHT: 12 - 30" . . . PLANT SPACING: 18 - 24" LIGHT REQUIREMENTS: Sun . . . SOIL / WATER: Average - Dry Oh what a lovely stunning color! Attracts bees, birds, and butterflies.