- Name: Foxglove Excelsior Mix - Scientific Name: Digitalis Purpurea - Color: A Mix Of White, Yellow, Pink, Red, Rose, Lavender, & Purple - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Bloom Time: Summer - Fall - Hardiness Zone: 4 - 8 (Biennial) - Plant Height: 36 - 48" - Plant Spacing: 18 - 24" - Light Requirements: Part Sun - Full Shade - Soil & Water Preferences: Moist - Quantity: 1000 Seeds - Other: Foxglove Is A Wonderful Choice For Your Shade Garden. I Don't Know Of Any Other Shade Plant That Gets This Big Or Comes In So Many Vibrant Colors! They Attract Bees, Butterflies, & Birds Including Hummimgbirds!