Alphabetical Plant Listing

Centaurea montana 'Amethyst Dream' (Mountain Cornflower)

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


Centaurea montana 'Amethyst Dream' (Mountain Cornflower) is a spreading, herbaceous perennial boasting radiant royal-purple, thistle-like flowers in late spring to early summer. Attracting bees, butterflies and other admirers, the blossoms appear atop the foliage of softly haired silver leaves. Trouble-free and easy to grow, this fanciful bloomer is a great choice for cottage gardens, sunny borders, or containers.

  • Grows up to 20 in. tall (50 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.

Not sure which Centaurea - Cornflowers to pick?
Compare All Centaurea - Cornflowers

Buy Centaurea montana 'Amethyst Dream' (Mountain Cornflower)

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" (75cm)
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
Attracts Butterflies
Garden Uses Beds and Borders, Patio and Containers
Garden Styles Coastal Garden, Informal and Cottage, Prairie and Meadow

Buy Plants

Great Plant Combination Ideas with Centaurea - Cornflowers

Guides with Centaurea - Cornflowers


Nancy J. Ondra, 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" (75cm)
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
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

Plant Calculator

How many Centaurea montana 'Amethyst Dream' (Mountain Cornflower) do I need for my garden?

%
ft
ft

Your Shopping List

Plant Quantity
Centaurea montana 'Amethyst Dream' (Mountain Cornflower)

Find your Hardiness Zone

Find your Climate Zone

Find your Heat Zone

Join Gardenia.net

Create a membership account to save your garden designs and to view them on any device.

Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

Join now and start creating your dream garden!

Create a New Collection

Optional. For your reference.


Move Selected Plants to a Different Collection


Delete Collection

This field is required.