Alphabetical Plant Listing

Allium senescens (German Garlic)

German Garlic, Mountain Garlic, Ornamental Onion


Allium senescens (German Garlic) is a bulbous herbaceous perennial which forms a tuft of twisted, grassy-looking, green leaves and produces up to 30 fragrant round balls of soft pink-lilac flowers atop upright stems in mid to late summer. Lasting for several weeks, they attract butterflies and hummingbirds. Suitable for rock gardens, atop retaining walls, these charming blossoms look equally terrific in perennial borders.

  • Winner of the Award of Garden Merit of the Royal Horticultural Society.
  • Grows up to 6-12 in. tall and wide (30-60 cm).
  • Thrives in well-drained soils in full sun. Drought tolerant.
  • Lovely in beds and borders, rock gardens, cottage gardens, city gardens and containers. To achieve an impressive visual effect, plant them in groups close together.
  • Attracts butterflies and hummingbirds, but deer and rabbits ignore it!
  • Remove spent flowers to prevent the appearance of volunteer seedlings.
  • Easily divided in spring. Propagate by seed or by division during spring or autumn.
  • Native to Europe, northern Asia

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Requirements

Hardiness 4 – 10
Heat Zones 1 – 10
Climate Zones 1, 1A, 1B, 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, Perennials
Plant Family Alliums
Exposure Full Sun
Season of Interest Summer (Mid,Late)
Height 6" – 1' (15cm – 30cm)
Spread 6" – 1' (15cm – 30cm)
Spacing 9" – 12" (22cm – 30cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy
Tolerance Deer, Drought, Rabbit
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders, Edging, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

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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 – 10
Heat Zones 1 – 10
Climate Zones 1, 1A, 1B, 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, Perennials
Plant Family Alliums
Exposure Full Sun
Season of Interest Summer (Mid,Late)
Height 6" – 1' (15cm – 30cm)
Spread 6" – 1' (15cm – 30cm)
Spacing 9" – 12" (22cm – 30cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy
Tolerance Deer, Drought, Rabbit
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders, Edging, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

Great Plant Combination Ideas with Alliums

Guides with Alliums

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