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Centaurea montana 'Purple Heart'
knapweed
Purple-eyed flowerheads, each with a ruff of long white florets, form throughout the summer above the clumps of grey-green foliage, creating...
6 × 9cm pots
In stock (shipped within 2-3 working days)
9cm pot
In stock (shipped within 2-3 working days)
3 × 9cm pots
In stock (shipped within 2-3 working days)
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Plant description
Purple-eyed flowerheads, each with a ruff of long white florets, form throughout the summer above the clumps of grey-green foliage, creating easy-going groundcover that will thrive in a sunny spot. Centaurea montana 'Purple Heart' is ideal for naturalised settings - and the bees and butterflies love it too.
Eventual height & spread
Flowering period
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Plant features
Position
Full sun / light shade
Rate of growth
Fast-growing
Soil
Moderately fertile, moist, well-drained soil
Hardiness
Fully hardy
How to care for Centaurea montana Purple Heart:
Plant perennial Centaurea in well-drained soil in a sunny position where it can get plenty of light and air movement. It’s a tough and reliable perennial but benefits from staking with brushwood or canes in spring before the flower stems lengthen, to prevent flopping.
Cut back to the ground after flowering to encourage a possible second flush later in the season. Every three years or so, lift and divide congested clumps in spring to maintain health and vigour.
Cut back to the ground after flowering to encourage a possible second flush later in the season. Every three years or so, lift and divide congested clumps in spring to maintain health and vigour.
Please note:
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
