'Purple Sensation' has lovely rose-purple 4-5" globes of tiny flowers that appear in late spring. This perennial grows to 36" tall, with short basal leaves dying down by flowering time. These alliums are perfect for a sunny border. Alliums are bulbous herbaceous perennials with an onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem. | DeGroot Allium Purple Sensation Seed Packet