- Name: Palace Purple Heuchera - Other Common Names: - Scientific Name: Heuchera Micrantha 'Palace Purple' - Color: Purple - Bronze Foliage / Cream Flowers - Plant Seeds: Fall Sow Seeds Or Cold Stratify - Bloom Time: June - July - Hardiness Zone: 4 - 8 - Plant Height: 18 - 24" - Plant Spacing: 12 - 15" - Light Requirements: Sun - Part Shade - Soil & Water Preferences: Average - Moist - Quantity: 50 Seeds - Other: Palace Purple Has Large 3 - 5" Leaves With Shades Of Green To Bronze To Deep Purple. The Undersides Of The Leaves Are A Bright Purple, & They Curl Up To Display All Their Wonderful Hues.