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Centaurea montana 'Purple Heart'

knapweed

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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. It's ideal for a more naturalised setting - and the bees and butterflies love it too.

How to care for Centaurea montana Purple Heart:

Stake with brushwood or bamboo canes before the flowers appear. Cut back to the ground after flowering and you may get a second flush of flowers. Lift and divide large clumps every three years in spring.
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

  • InformationThis perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

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RH30003635
9cm pot
£9.99
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(shipped within 2-3 working days)
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RH30003644
3 × 9cm pots
£22.99 £7.66 each
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(shipped within 2-3 working days)
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Standard delivery Standard Delivery£5.95
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