- Name: Astilbe Bunter - Scientific Name: Astilbe Simplicifolia - Color: A Mix Of Red, White, Purple, Light Pink, And Dark Pink - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Bloom Time: Mid - Late Summer - Hardiness Zone: 4 - 8 - Plant Height: 24 - 30” - Plant Spacing: 24 - 32” - Light Requirements: Part Shade - Shade - Soil & Water Preferences: Average - Quantity: 50 Seeds - Other: Attracts Bees, Butterflies, & Birds. Astilbe Is A Wonderful Way To Add Color To Any Shade Garden!