Cynara cardunculus
cardoon
- Position: full sun
- Soil: fertile, well-drained soil
- Rate of growth: average
- Flowering period: June to September
- Flower colour: purple
- Hardiness: fully hardy
Huge, purple, thistle-like flowers from June to September held above enormous clumps of deeply-cut, silvery-green leaves. This magnificent, architectural plant is perfect towards the back of a mixed or herbaceous border. For the best results it needs full sun, lots of space and shelter from strong winds. - Garden care: Avoid the temptation to remove the faded flower-heads in autumn as they provide interest in the winter garden. Where temperatures fall below -15°C (5°F) protect the crown of the plant with a dry winter, straw mulch.
- Eventual Height: 1.5m
- Eventual Spread: 1.2m