Alphabetical Plant Listing

Centaurea montana 'Amethyst in Snow' (Mountain Cornflower)

Mountain Cornflower 'Amethyst in Snow', Perennial Cornflower 'Amethyst in Snow', Mountain Bluets 'Amethyst in Snow', Knapweed 'Amethyst in Snow', Mountain Knapweed 'Amethyst in Snow', Bachelor's Button 'Amethyst in Snow', Great Blue-Bottle 'Amethyst in Snow'


Centaurea montana 'Amethyst in Snow' (Mountain Cornflower) is a spreading, herbaceous perennial boasting unique, purple-centered, white fringed flowers in late spring to early summer. Attracting bees, butterflies and other admirers, the thistle-like blossoms appear atop the foliage of soft, gray-green, lance-shaped leaves. Trouble-free and easy to grow, this fanciful bloomer is a great choice for cottage gardens, sunny borders, or containers.

  • Grows up to 14 in. tall (35 cm) and 28 in. wide (70 cm).
  • Performs best in full sun or light shade in average, dry to moist, well-drained soils. Poor soils, heat and drought tolerant.
  • Good choice for beds and borders, cottage gardens, prairies and meadows, coastal gardens and containers. Great as cut flowers too!
  • No serious pest or disease issues. Keep an eye out for powdery mildew.
  • Deadhead regularly to prolong flowering, and cut back in fall.
  • Propagate by division in spring or autumn.
  • Centaurea montana species is native to Europe, where it grows in meadows and open woodland in the upper montane and sub-alpine zones. This popular garden perennial has become an invasive species in British Columbia, Canada.
  • Find where this species is invasive in the United States.

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Requirements

Hardiness 3 – 9
Heat Zones 1 – 9
Climate Zones 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Centaurea - Cornflowers
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 1' – 2' (30cm – 60cm)
Spread 2' – 3' (60cm – 90cm)
Spacing 30" – 36" (75cm – 90cm)
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, Showy
Tolerance Drought
Attracts Butterflies
Garden Uses Beds and Borders, Patio and Containers
Garden Styles Coastal Garden, Informal and Cottage, Prairie and Meadow

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Peter Fleming, Shutterstock

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 3 – 9
Heat Zones 1 – 9
Climate Zones 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Centaurea - Cornflowers
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 1' – 2' (30cm – 60cm)
Spread 2' – 3' (60cm – 90cm)
Spacing 30" – 36" (75cm – 90cm)
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, Showy
Tolerance Drought
Attracts Butterflies
Garden Uses Beds and Borders, Patio and Containers
Garden Styles Coastal Garden, Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Centaurea - Cornflowers

Guides with Centaurea - Cornflowers

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