Search Results for "Allium"

Allium sikkimense (Sikkim onion)

Other names: Blue-flowered allium, Allium kansuense, Allium tibeticum

A. sikkimense is a bulbous perennial with linear, mid-green leaves, and nodding umbels of small, bell-shaped, blue, sometimes white, flowers in early summer.
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0.1m max. spread

0.25m max. height

2-5 years to maturity

Allium caeruleum (Azure-flowered garlic)

Other names: Blue-flowered garlic, Allium azureum , Allium 'Azureum', Allium caeruleum azureum, Allium coerulescens, Blue of the heavens, Blue globe onion

A. caeruleum is a clump-forming, bulbous perennial with linear, grey-green leaves and erect stems bearing compact, dense, rounded clusters of blue flowers in early summer.
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0.1m max. spread

1m max. height

2-5 years to maturity

Allium cyaneum (Dark blue garlic)

Other names: Allium purdomii, Allium beesianum, Blue onion, Ornamental onion

A. cyaneum is a clump-forming, bulbous perennial with short, spreading rhizomes, grass-like, dark green leaves, and umbels of bell-shaped, blue flowers in summer.
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0.1m max. spread

0.25m max. height

2-5 years to maturity

Eryngium alpinum (Alpine eryngo)

Other names: Alpine sea holly

E. alpinum is an erect herbaceous perennial with heart-shaped, glossy dark green leaves. Large, cone-like, purplish flowers surrounded by vivid blue, spiny bracts, borne on blue stems.
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0.5m max. spread

1m max. height

2-5 years to maturity

Eryngium alpinum 'Blue Star' (Alpine eyngo 'Blue Star')

Other names: Alpine sea holly 'Blue Star'

'Blue Star' is an erect, herbaceous perennial with ovate to heart-shaped, glossy, dark blue-green basal leaves, palmately-lobed, blue-green stem leaves and, from midsummer until early autumn, upright, blue-green stems bearing large, cone-like, blue flower-heads surrounded by long, pinnate, softly-spiny, blue-grey bracts.
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0.6m max. spread

0.8m max. height

2-5 years to maturity

Geranium himalayense 'Gravetye' (Himalayan crane's bill 'Gravetye')

Other names: Geranium himalayense alpinum , Geranium grandiflorum var. alpinum, Himalayan cranesbill 'Gravetye'

'Gravetye' is a mat-forming perennial with attractive lobed leaves and cup-shaped violet-blue flowers flushed reddish-purple around the white centre.
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0.5m max. spread

0.5m max. height

2-5 years to maturity