prairie onion
Allium stellatum
Overview
The Prairie Onion (Allium stellatum) is an amazing wildflower due to its unique aesthetic and versatility. Reaching up to 18 inches in height, this purple-pink flowering plant has an onion-like bulb and deep green foliage. Blooming season begins in May and can last through September, providing bright pops of color to dry and moist meadows. Prairie Onions are incredibly hardy and easy to grow, surviving in a range of temperatures and soils. They are a great choice for rock and xeriscape gardens since they require very little water or maintenance. The Prairie Onion is a surefire way to bring a delightful burst of color to any open space.
Care Guide
Watering
The prairie onion (Allium stellatum) is a drought tolerant plant and therefore generally does not require a lot of water to grow and thrive. Water the plant when the soil is dry to the touch. Deep water once every 3 to 4 weeks during the growing season, stopping when the plant's foliage turns yellow and begins to die back. You can also provide it with light, frequent drizzles of water during extremely hot weather. Avoid overhead watering or watering too often as this can cause fungal diseases and root rot.
Light
Prairie onion (Allium stellatum) prefers full sun, which means it needs at least 6 hours of direct sunlight each day. Despite its preference of full sun, prairie onion tolerates partial shade, which can supplemented with up to 4 hours of sun each day. It is best to avoid deep shade as this will reduce flower and bulb production.
Soil
Sand, Loam
Temperature
Hardiness zone 3-8.
Pruning
Prairie onion (Allium stellatum) should be pruned in late winter to early spring. Cut the flower stalks down to the base of the plant, as the flowers fade, but do not cut back the foliage. If the foliage is overcrowded, prune back about a 1/3 of the clump. This will stimulate fresh new growth. Pruning will also keep the clump from becoming too large, or taking over other nearby plants.
Propagation
Division, Seed Propagation, Bulbils, Offsets
Uses & Symbolism
Attracts: Butterflies.
Related plants
Other plants you might like if you grow prairie onion.
