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Cirsium tuberosum (Tuberous thistle)

Beginner
skill rating
2 hours care
per year
1.5m
Max height
0.6m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Cirsium tuberosum

Other names

Tuberous thistle

Genus

Cirsium 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

Habit

Upright, Clump-forming

Flower

Dark-pink, Dark-purple in Summer

Foliage

Green in Summer

How to care

Watch out for

Powdery mildew Powdery mildew

General care

Pruning

If self-seeding becomes a problem, then cut back hard after flowering.

Propagation methods

Division, Seed


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Where to grow

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)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Cirsium tuberosum

Other names

Tuberous thistle

Genus

Cirsium Cirsium

Species

C. tuberosum - C. tuberosum is a rare, native, herbaceous perennial with spiny, deep lobed, silvery grey leaves and purple-pink flowers.

Foliage

Deciduous

Habit

Upright, Clump-forming


Colour

Flower

Dark-pink, Dark-purple in Summer

Foliage

Green in Summer


How to care

Watch out for

Specific diseases

Powdery mildew

General care

Pruning

If self-seeding becomes a problem, then cut back hard after flowering.

Propagation methods

Division, Seed


Monthly care advice


Where to grow

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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