Allium cernuum, known as nodding onion or lady's leek, grows in open areas in North America. It is a unique summer-flowering ornamental onion that has straight stems, topped with egg-shaped flower heads. They start off completely chartreuse-green before turning maroon-claret at the tip and finally becoming overall deep reddish purple. Flowering lasts for many weeks.

Type: Hardy perennial

Hardiness zones: 3-9

Height: 14-16", 35-40cm

Location: Sun

Seeds per packet: 20

By Fritzflohrreynolds - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=31529515  By Patrick Alexander from Las Cruces, NM - Allium cernuum, CC0, https://commons.wikimedia.org/w/index.php?curid=94224140