About
Cirsium tuberosum is a perennial herb that develops a dense mound of green, finely serrated foliage, reaching heights of up to 60 cm and spreading approximately 30 cm from a basal rosette. From June through August, it blooms with thistle-like flowers in a rich purplish-pink hue.
About the genus
Cirsium includes both biennial and perennial species characterized by their spiny foliage and distinctive thistle-like flower heads.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0-0.1 metre
- Time to full height
- 1-2 years
- Suggested uses
- Wildflower meadow, Wildlife gardens
Care notes
- Cultivation
- Grow in moist but well drained soil in full sun. See Creating wildflower meadows for further advice
- Pruning
- No pruning required
- Propagation
- Propagate by sowing seeds outdoors
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free