By Mary H. Dyer, Credentialed Garden Writer. Wait until Nodding Onion has multiplied before harvesting. These plants should be divided every third year or when 10 or more bulbs appear close together. Wild Nodding Onion … Suitable for: light (sandy), medium (loamy) and heavy … Great plant for front of the border, rock garden, and naturalized areas. Nodding Pink Onion Allium cernuum Description & Overview Nodding Pink Onion is a Wisconsin native perennial. Pink to lilac umbels of loose, nodding flowers bloom from mid-to-late summer. It is in leaf from February to December, in flower from June to July. In summer, the stems are topped with a single bulb containing numerous white-to-pink flower clusters. Mounds of flat, grass-like leaves support stalks of nodding, bell-shaped, purplish-pink flower clusters in June through August. Controlling Allium Plants – How To Manage Flowering Onions. What’s a nodding pink onion? Marcia Zientek, Master Gardener Volunteer Revised: 5/18/2010 . Nodding Onion is very easy to care for with no serious pests or diseases. Select and pull the oldest/biggest bulbs at the center of the clump (you might have to dig the bulb depending on the size of the plant and type of soil). Well, its descriptive name gives more than just a hint but you can click on this article to learn how to grow nodding onions and about nodding onion care. Common Name: Nodding Onion Botanical Name: Allium cernuum Location: Perennial Garden Size: 12-18 inches tall and 4-6 inches wide Bloom Time: June-July Bloom Color: Pink Light Requirements: Full sun to partial shade Moisture and Soil … This plant will require occasional maintenance and upkeep, and should only be pruned after flowering to avoid removing any of the current … Its relatively fine texture sets it apart from other garden plants with less refined foliage. Ornamental onions have a characteristic pungent onion … Nodding wild onion is native in open woods and slopes from Canada to Mexico, including northeast Illinois. Allium cernuum is a clump-forming allium, bearing open clusters of pink, nodding flowers with protruding yellow stamens. It is hardy to zone (UK) 6 and is not frost tender. Harvest, Care, and Preparation. Nodding Pink Onion does best in full or partial sun, and moist to medium conditions, including damp clay. This Nodding Onion has a large native range from New York to British Columbia & Washington & Oregon, down the Rocky Mountains through Arizona & New Mexico into northern Mexico back to northern Georgia, growing in moist or dry areas, especially rocky outcrops, dry prairie, and dry woodland edges. (12-18" tall x 4-6" wide) Nodding Onion is a lovely North American native perennial that adds care-free summer color to the garden. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, insects. Easily grown in most conditions, they are drought tolerant once established. Like other onions, it’s foliage is tufts of long, grass-like leaves. Like all alliums, its blooms are attractive to bees and other pollinators. These are delicious in any application you’d use onions for. Nodding Pink Onion (Allium cernuum) is long-lived, super hardy and looks great in short prairie gardens and meadows.Plant this native Allium in masses for a stunning late summer effect. It’s an extremely attractive variety and is easy to grow. Nodding Pink Onion is an open herbaceous perennial with an upright spreading habit of growth. Allium cernuum is a BULB growing to 0.5 m (1ft 8in) by 0.3 m (1ft). To prevent propagation, deadhead the blooms before the black seeds appear. Nodding Onion is self seeding and will propagate on its own. 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