Allium cernuum,also known as nodding onion or lady’s leek, is an unusual allium as it has slender, straight stem with cluster of purply-pink flowers on its nodding head. When the flowers fade, a decorative seed head remains. Although highly ornamental, this plant is entirely edible and is a bit on the sweet side. Easily grown in sunny gardens, borders, meadows, rock gardens or pots and containers and is best interplanted with other perennials. Bee and butterfly friendly.