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Botanical name: Cirsium tuberosum
Other names: Tuberous thistle
Species: C. tuberosum - C. tuberosum is a rare, native, herbaceous perennial with spiny, deep lobed, silvery grey leaves and purple-pink flowers.
Cirsium tuberosum is: Deciduous
Flower: Dark-pink, Dark-purple in Summer
Foliage: Green in Summer
Habit: Upright, Clump-forming
Specific diseases: Powdery mildew
Pruning: If self-seeding becomes a problem, then cut back hard after flowering.. REGISTER to read more...
Propagation methods: Division, Seed. REGISTER to read more...
Cirsium tuberosum (Tuberous thistle) will reach a height of 1.5m and a spread of 0.6m after 2-5 years.
Suggested uses: Low Maintenance, Cottage/Informal, Flower Arranging, Beds and borders, Wildflower, Wildlife
Cultivation: Plant in moist, well-drained soil. Can tolerate some dryness and partial shade. Will self-seed freely.
Soil type: Chalky, Sandy, Loamy
Soil drainage: Well-drained, Moist but well-drained
Soil pH: Alkaline, Neutral, Acid
Light: Full Sun
Aspect: South, East, West
Exposure: Exposed, Sheltered
Hardiness: Hardy (H4)
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|Soil types:||Chalky, Sandy, Loamy||Tell us...|
|Soil drainage:||Well-drained, Moist but well-drained||Tell us...|
|Soil pH:||Alkaline, Neutral, Acid||Tell us...|
|Light:||Full Sun||Tell us...|
|Aspect:||South, East, West||Tell us...|
|Exposure:||Exposed, Sheltered||Tell us...|
|Hardiness:||Hardy (H4)||Tell us...|
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