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Allium ‘Mont Blanc’ (Ornamental Onion)

Ornamental Onion 'Mont Blanc', Spring Bulbs, Spring Flowers

Allium 'Mont Blanc', White Allium , Ornamental Onion 'Mont Blanc', Spring Bulbs, Spring Flowers, Late Spring Bloom, Early Summer Bloom
Allium 'Mont Blanc', White Allium , Ornamental Onion 'Mont Blanc', Spring Bulbs, Spring Flowers, Late Spring Bloom, Early Summer Bloom
Allium 'Mont Blanc', White Allium , Ornamental Onion 'Mont Blanc', Spring Bulbs, Spring Flowers, Late Spring Bloom, Early Summer Bloom

Tall and white, as suggested by its name, Allium ‘Mont Blanc’ is a splendid beauty with 4-inch wide (10 cm) umbels of pure-white flowers atop sturdy, upright stems. The foliage of basal, semi-erect strap-shaped grayish-green leaves is also quite ornamental. Blooming in late spring to early summer, this spectacular bulbous perennial enjoys long-lasting blooms and remains ornamental in the garden well into summer.

  • Growing up to 3-4 ft. tall (90-120 cm), this beauty naturalizes easily and will come back year after year!
  • Easily grown in rich, sandy to gritty, dry to medium moisture, well-drained soils in full sun. This Allium is drought tolerant.
  • Known for attracting bees, butterflies, ​moths, and other pollinators, but deer ignore it.
  • Stunning in beds, borders, and cottage gardens. Spectacular in large sweeping drifts. Plant in groups (at least 10 to 15 bulbs) for the best visual impact. Excellent as cut flowers for both fresh and dried arrangements!
  • Mixes beautifully with other late spring flowering bulbs and creates stunning combinations with pink or white delphiniums, peonies, or irises.
  • To be planted in fall.

Hundreds of Allium species exist, but only a few have made a name for themselves as garden plants. The ornamental onions distinguish themselves by their remarkable diversity in color, inflorescence, and flowering height. Many species bloom in early summer – just after the spring-flowering period and just before the exuberant full bloom of summer. Certain small species are just perfect for a rock garden, and several lend themselves to naturalizing. All species can be used in the border.

Learn How To Plant And Care for Your Spring Flower Bulbs


 To achieve optimum flowering results, it is important to plant the bulbs at the right time.

Requirements

Hardiness 4 - 8
Heat Zones 1 - 9
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Bulbs
Plant Family Amaryllidaceae
Genus Allium
Common names Onion, Ornamental Onion
Exposure Full Sun
Season of Interest Spring (Late), Summer (Early),
Height 3' - 4' (90cm - 120cm)
Spread 10" - 1' (25cm - 30cm)
Spacing 8" (20cm)
Depth 8" (20cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Dried Arrangements, Cut Flowers, Fragrant, Showy
Tolerance Drought, Deer, Rabbit
Attracts Bees, Butterflies
Garden Uses Beds And Borders
Garden Styles Informal and Cottage, Formal Garden
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Do I Need?
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Alternative Plants to Consider

Allium cepa Aggregatum Group (Shallot)
Allium cepa (Onion)
Allium sativum (Garlic)
Allium ‘Pinball Wizard’ (Ornamental Onion)
Allium ‘Purple Rain’ (Ornamental Onion)
Allium ‘Miami’ (Ornamental Onion)

Recommended Companion Plants

Aquilegia vulgaris var. stellata ‘Black Barlow’ (Columbine)
Papaver orientale ‘Beauty of Livermere’ (Oriental Poppy)
Lupinus ‘The Governor’ (Lupine)
Allium hollandicum ‘Purple Sensation’ (Ornamental Onion)

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An Impressive Planting Combination with Alliums, Poppies and Sage
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Allium (Ornamental Onion)
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Bulbs that return to the garden year after year!
Tall Alliums for your Garden Borders
Small Allium Species for the Rock Garden
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Awesome Allium Combos
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 4 - 8
Heat Zones 1 - 9
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Bulbs
Plant Family Amaryllidaceae
Genus Allium
Common names Onion, Ornamental Onion
Exposure Full Sun
Season of Interest Spring (Late), Summer (Early),
Height 3' - 4' (90cm - 120cm)
Spread 10" - 1' (25cm - 30cm)
Spacing 8" (20cm)
Depth 8" (20cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Dried Arrangements, Cut Flowers, Fragrant, Showy
Tolerance Drought, Deer, Rabbit
Attracts Bees, Butterflies
Garden Uses Beds And Borders
Garden Styles Informal and Cottage, Formal Garden
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Allium
Guides with
Allium
Not sure which Allium to pick?
Compare Now

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