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Cirsium tuberosum (Tuberous thistle)

Skill rating
skill rating
Maintenance level
2 hours care
per year
Ultimate height
Max height
Ultimate spread
Max spread
Time to maturity
2-5 years
To maturity

Botanical name: Cirsium tuberosum

Other names: Tuberous thistle

Genus: Cirsium

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

Watch out for

Specific diseases: Powdery mildew

General care

Pruning: If self-seeding becomes a problem, then cut back hard after flowering.. REGISTER to read more...

Propagation methods: Division, Seed. REGISTER to

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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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This plant likes... Garden match
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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