Allium unifolium
allium or American onion bulbs
The flowers of Allium unifolium have a papery texture, which means they tend to last a little longer than many of the other cultivars.
In spring the first sign of growth is the appearance of the strappy foliage, although this will usually have died off by the time the flowers start to appear in late spring.
Topping slender stems from late spring to midsummer, the pinky purple, bell shaped flowers form in clusters of up to 20 at a time. Attractive to a wide range of pollinators and equally pretty in borders, pots or vases, they make terrific additions to border edges and alpine beds.
In spring the first sign of growth is the appearance of the strappy foliage, although this will usually have died off by the time the flowers start to appear in late spring.
Topping slender stems from late spring to midsummer, the pinky purple, bell shaped flowers form in clusters of up to 20 at a time. Attractive to a wide range of pollinators and equally pretty in borders, pots or vases, they make terrific additions to border edges and alpine beds.
How to care for Allium unifolium:
Allium bulbs are easy to grow in a sunny spot with freely drained soil, or a good quality potting compost. Ideally they should be planted in September or October, but could also be planted in early November in milder regions.
Dig holes roughly three times as deep as the diameter of the bulb and place them at the base, pointy side up before gently infilling and watering to settle them in. In early spring, as growth begins, apply a balanced, slow-release fertiliser, and allow the plants to die back naturally and completely before tidying away.
Dig holes roughly three times as deep as the diameter of the bulb and place them at the base, pointy side up before gently infilling and watering to settle them in. In early spring, as growth begins, apply a balanced, slow-release fertiliser, and allow the plants to die back naturally and completely before tidying away.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
0.3m
Eventual spread:
0.05m
Position:
Full sun
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Borderline hardy (will need protection in winter in colder areas)
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Pets: TOXIC if eaten; Humans: Ornamental bulbs - not to be eaten
Unavailable
Bulbs (only)£4.95
