Centaurea montana 'Amethyst Dream'
Mountain knapweed, Perennial cornflower, Mountain bluet, Perennial bachelor's buttons
Also known as Centaurea 'Amethyst Dream'
- Height × spread
- 0.45m × 0.3m
- Position
- Full sun
- Hardiness
- Colder than -20C (RHS H7)
- Flowers
- Spring, Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
The exuberant spiky flower heads delight with the near-black centre and purple petals that divide into four or five elements which open wide with maturity. They are set amongst sturdy light green foliage and are a lively feature from April until June. Good grown in a clump or as a spot plant, and enjoyed by bees and people alike. It is also good for cutting.
- Flower colour
- Purple
- Foliage colour
- Green
- Variegated
- No
- Scent
- No
- Shape
- Bell
- Height
- 0.45m
- Spread
- 0.3m
- Season of interest
- Spring, Summer
- Flowers in
- Spring, Summer
- Evergreen
- Deciduous
- Garden style
- Seaside garden, Cottage garden
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Loam (normal)
- Soil pH
- All types
- Drainage
- Moisture retentive soil, Well drained soil, Dry soil, Drought resistant
- Hardiness
- Colder than -20C (RHS H7)
- Borders & containers
- Borders
- Use for
- Ground cover, Bee attraction, Butterfly attraction
- Hazards
- No
Spring
Spring-Autumn · Outdoors
Water in dry periods
Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.
Summer
Summer - early · Outdoors
Feed a general fertiliser
Where plants have moderate needs for nutrients, they can simply be given a general feed, fairly early in the growth season so that the growth has plenty of time to harden off before the cold weather.
Give plants a general boost with the application of a general purpose fertiliser which is spread around the root area of the plant, with amounts as directed on the feed label.
Planting & general
Planting
Deadhead blooms during flowering season
Remove flowers as they turn brown and fade. Snip the stem just below the bloom. This will keep the plant tidy and encourage more flowers.
The removal of spent flowers encourages the plant to produce fresh ones, rather than spend its energy on the development of seeds.
Found in
More Centaurea
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Centaurea 'John Coutts'
John Coutts cornflower, Cornflower
Centaurea montana
Mountain knapweed, Perennial cornflower, Mountain bluet, Perennial bachelor's buttons
Centaurea 'Amethyst on Ice'
Knapweed, Star thistle
Centaurea 'Caramia'
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Centaurea 'Jordy'
Knapweed
Centaurea 'Silver Feather'
Silver Feather knapweed
Centaurea bella
Beautiful knapweed