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Create your own plant list and get plant care reminders direct to your inbox!
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Beginner
skill rating |
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1m
max. spread |
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0.5m
max. height |
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5-10 years
to maturity |
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1 hour care
per year |
Botanical name: Persicaria affinis 'Superba'
Other names: Knotweed 'Superba'
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Genus: Persicaria
Variety or cultivar: 'Superba' _ 'Superba' is a perennial grown for its soft spires of light pink flowers held on tall stalks held above a mass of leaves.
Persicaria affinis 'Superba' is: Semi evergreen
Flower: Pale-pink in Summer; Pale-pink in Autumn
Foliage: Dark-green in All seasons
Habit: Mat Forming
Awards: RHS AGM (Award of Garden Merit)
Plant with:
Monarda didyma (Bergamot), Monarda 'Cambridge Scarlet' (Monarda 'Cambridge Scarlet')
Persicaria affinis 'Superba' (Knotweed 'Superba') will reach a height of 0.5m and a spread of 1m after 5-10 years.
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Suggested uses: Cottage/Informal, Beds and borders, Garden edging, Ground Cover, Low Maintenance, Prairie planting, Rock
Cultivation: Plant in moist, free-draining soil in full sun to partial shade.
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| Soil types: |
Clay, Loamy |
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| Soil drainage: |
Moist but well-drained, Well-drained |
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| Soil pH: |
Acid, Alkaline, Neutral |
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| Light: |
Partial Shade, Full Sun |
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| Aspect: |
North, South, East, West |
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| Exposure: |
Exposed, Sheltered |
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| Hardiness: |
Hardy (H4) |
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We list 28 suppliers who tell us they sell Persicaria affinis 'Superba' (Knotweed 'Superba'). In order to see the list you'll need to either register or log in as a full member.
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