Heuchera ‘Blackout’ Plant Data Family Name: Saxifragaceae Common Name: Blackout heuchera Other Name(s): Heuchera Other Name(s): 'Blackout' Hardiness Zones: Zone 4: (-34 to -29 C) Plant Code: hebk Flowering Time: Jun, Jul, Flowering Color: White, Leaf Form: Simple, Leaf Arrangement: Basal, Leaf Shape: Orbicular, PlantSomething BC Garden Centre Listings No members have selected this plant.