Alphabetical Plant Listing

Allium 'Medusa' (Ornamental Allium)


Aptly named, Allium 'Medusa' (Ornamental Allium) is a bulbous perennial boasting profuse, 2-inch rounded clusters (5 cm), packed with amethyst-purple flowers. Blooming from late summer to early fall, they open from nodding buds that look like snakes at the tips of the stems, just like Medusa hair. Borne on sturdy stems, the blossoms seem to float above the low foliage mound of twisting and curling, gray-green leaves. The foliage has a slight onion scent when bruised. Rich in nectar, the flowers attract bees and butterflies. They make excellent cut flowers. Easy to grow, carefree, deer and rabbit resistant, this Allium selection is a charming addition to the rock or herb garden

  • Grows up to 20-24 in. tall (50-60 cm) and 24 in. wide (60 cm).
  • Thrives in fertile, well-drained soils in full sun to part shade. Add grit to clay soils to improve drainage. This Allium is drought tolerant.
  • Lovely in beds and borders, cottage gardens, and containers. To achieve an impressive visual effect, plant in clusters.
  • Known for attracting bees, butterflies, ​moths, and other pollinators, but deer and rabbits ignore it.
  • Generally pest and disease free. Keep an eye out for onion white rot and downy mildew.
  • Cut back after flowering or merely remove dead flowerheads.
  • Propagate by removing offsets in autumn.

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.

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Requirements

Hardiness 4 – 8
Heat Zones 1 – 10
Plant Type Bulbs
Plant Family Allium
Exposure Full Sun, Partial Sun
Season of Interest Summer (Late)
Fall
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 24" (60cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Deer, Drought
Attracts Butterflies
Garden Uses Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

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Great Plant Combination Ideas with Allium

Guides with Allium


Walters Gardens Inc

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.


Requirements

Hardiness 4 – 8
Heat Zones 1 – 10
Plant Type Bulbs
Plant Family Allium
Exposure Full Sun, Partial Sun
Season of Interest Summer (Late)
Fall
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 24" (60cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Deer, Drought
Attracts Butterflies
Garden Uses Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

Great Plant Combination Ideas with Allium

Guides with Allium

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