Three favorite heucheras include Dale's Strain, Citronelle and Blackout. Green, silvery marbled leaves, lime green and almost black foliage add a dramatic flair in containers and shady garden beds. Planted in groups, this trio lends color to small spaces and thrives with little care. Heucheras are reliable ground covers, resistant to deer and other small critters. For home-grown bouquets, their colorful foliage add interest when cut fresh from the garden.