50 MIXED COLORS ASTILBE BUNTER Astilbe Simplicifolia Flower Seeds BLOOM TIME: Mid - Late Summer HARDINESS ZONE: 4 - 8 PLANT HEIGHT: 24 - 30" . . . PLANT SPACING: 24 - 32" LIGHT REQUIREMENTS: Part Shade - Shade . . . SOIL/WATER: Average Attracts bees, butterflies, and birds. Astilbe is a wonderful way to add color to any shade garden!