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 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.
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.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
0.45m
Eventual spread:
0.6m
Position:
Full sun / light shade
Rate of growth:
Fast-growing
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Fully hardy
-
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
9cm pot
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