Search Results for "Allium sphaerocephalon"

Allium sphaerocephalon (Roundhead leek)

Other names: Round-headed allium

A. sphaerocephalon is a bulbous perennial with strap-like, mid-green basal leaves and tall stems bearing small round or oval pink to purple-red flowerheads in summer
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0.1m max. spread

0.9m max. height

2-5 years to maturity

Allium stipitatum 'Mount Everest' (Allium 'Mount Everest')

Other names: Ornamental onion 'Mount Everest'

'Mount Everest' is a clump-forming, bulbous perennial with glossy, strap-shaped, mid-green leaves and, in summer, sturdy, erect stems bearing dense, rounded umbels of star-shaped, white flowers in summer.
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0.5m max. spread

1m max. height

2-5 years to maturity

Allium oreophilum (Allium oreophilum)

Other names: Allium ostrowskianum

A. oreophilum is a low-growing bulbous perennial with strap-shaped leaves. In late spring or early summer, it bears clusters of dainty rose-pink flowers.
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0.2m max. spread

0.15m max. height

2-5 years to maturity

Allium 'Stratos' (Allium 'Stratos')

Other names: Giant allium 'Stratos'

'Stratos' is a bulbous perennial with glossy, strap-shaped, bright green basal leaves and, from late spring into summer, sturdy, erect stems bearing dense, rounded umbels of purple flowers.
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0.4m max. spread

1.2m max. height

2-5 years to maturity

Allium 'Ambassador' (Allium 'Ambassador')

Other names: Giant allium 'Ambassador'

Ambassador' is a bulbous perennial with glossy, strap-shaped, bright green basal leaves and, from late spring into summer, sturdy, erect stems bearing large, dense, rounded umbels of dark purple flowers
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0.4m max. spread

1.2m max. height

2-5 years to maturity

Allium mairei var. amabile (Allium mairei var. amabile)

Other names: Allium amabile

A. mairei var. amabile is a bulbous perennial forming narrow clumps of linear, grass-like, bright green leaves and loose umbels of bell-shaped, deep pink flowers in mid- or late summer.
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0.1m max. spread

0.25m max. height

2-5 years to maturity

Allium 'Silver Spring' (Allium 'Silver Spring')

Other names: Allium 'Silverspring'

'Silver Spring' is a bulbous perennial. It has basal, strap-shaped, green leaves. In late spring and early summer it bears spherical, rose centered white flowers on upright stems, resembling drumsticks.
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0.4m max. spread

0.6m max. height

2-5 years to maturity

Allium 'Gladiator' (Allium 'Gladiator')

Other names: Giant allium 'Gladiator', Ornamental onion 'Gladiator'

'Gladiator' is a bulbous perennial with glossy, strap-shaped, mid-green leaves and sturdy, erect stems bearing large, dense, rounded umbels of star-shaped, lilac flowers in early summer.
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0.5m max. spread

1.5m max. height

2-5 years to maturity

Allium 'White Empress' (Allium 'White Empress')

Other names: Allium jesdianum 'White Empress', Allium rosenbachianum 'White Empress'

'White Empress' is a bulbous perennial forming strap-shaped, grey-green leaves and large, globular clusters of starry white flowers.
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0.5m max. spread

0.75m max. height

2-5 years to maturity

Allium Big Impact Mix (Allium Big Impact Mix)

Other names: Giant allium Big Impact Mix

Big Impact Mix is a commercial mix of bulbous perennials with glossy, strap-shaped, green basal leaves and, from late spring into summer, sturdy, erect stems bearing dense, rounded umbels of purple, pink, or white flowers.
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0.2m max. spread

0.9m max. height

2-5 years to maturity