For the shady, reliably moist corners of the garden, 'Raven' could well be the plant you are looking for. This woodland gem boasts deep, royal purple flowers that stand tall above a lush mound of mid-green foliage, offering an early burst of colour, with its reflexed blooms serving as a vital source of nectar for early-season pollinators. While the flowers may be smaller in size than their flamboyant sun-loving cousins, their abundance creates a captivating visual spectacle, making this clump-forming perennial a prized addition to any garden seeking a touch of dark elegance amidst the shadows.