Centaurea Seeds 'Great Knapweed'
- Native British wildflower
- Gorgeous purple flowers in summer
- Grows well in poor soils
- Self-seeds liberally
A native British wildflower that thrives on neglect, Centaurea scabiosa (great knapweed) grows even in poor, dry soils, producing gorgeous thistle-like purple flowers that bees and other pollinators love to visit. It makes a beautiful addition to a wildlife-friendly border and will self-seed freely.
Sow indoors
Sow in trays of pre-watered seed compost and cover lightly. Keep at 15-20°C and allow 2 weeks for germination.
Grow on
When large enough to handle. transplant into 8cm pots. Slowly acclimatise to outdoor conditions before planting out after frosts.
Plant out
Choose a sunny spot in any well-drained soil. Plant approximately 25cm apart. Height may vary. For earlier flowering, sow in autumn and overwinter in a cold frame before planting out in spring. Self-seeds readily.
Original: $4.70
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Description
- Native British wildflower
- Gorgeous purple flowers in summer
- Grows well in poor soils
- Self-seeds liberally
A native British wildflower that thrives on neglect, Centaurea scabiosa (great knapweed) grows even in poor, dry soils, producing gorgeous thistle-like purple flowers that bees and other pollinators love to visit. It makes a beautiful addition to a wildlife-friendly border and will self-seed freely.
Sow indoors
Sow in trays of pre-watered seed compost and cover lightly. Keep at 15-20°C and allow 2 weeks for germination.
Grow on
When large enough to handle. transplant into 8cm pots. Slowly acclimatise to outdoor conditions before planting out after frosts.
Plant out
Choose a sunny spot in any well-drained soil. Plant approximately 25cm apart. Height may vary. For earlier flowering, sow in autumn and overwinter in a cold frame before planting out in spring. Self-seeds readily.
