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Persicaria campanulata (Lesser knotweed)
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1 hour care
per year
per year
1m
Max height
Max height
1m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Persicaria campanulata
Other names
Lesser knotweed, Polygonum campanulatum
Genus
Persicaria Persicaria
Species
P. campanulata - P. campanulata is an herbaceous perennial with ovate foliage and panicles of light-pink, bell-shaped flowers in summer and autumn.
Persicaria campanulata is: Deciduous
Habit
Clump-forming
Flower
Pale-pink in Summer; Pale-pink in Autumn
Foliage
Green in Summer; Green in Autumn
How to care
Watch out for
Pests
Generally pest-free.
Diseases
Generally disease-free.
General care
Pruning
Cut the plant back after flowering has finished
Propagation methods
Division
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Where to grow
Persicaria campanulata (Lesser knotweed) will reach a height of 1m and a spread of 1m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Low Maintenance, Prairie planting
Cultivation
Plant in any moist soil in sun or partial shade.
Soil type
Clay, Loamy
Soil drainage
Moisture-retentive, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
North, South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
Botanical name
Persicaria campanulata
Other names
Lesser knotweed, Polygonum campanulatum
Genus
Persicaria Persicaria
Species
P. campanulata - P. campanulata is an herbaceous perennial with ovate foliage and panicles of light-pink, bell-shaped flowers in summer and autumn.
Foliage
Deciduous
Habit
Clump-forming
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Colour
Flower
Pale-pink in Summer; Pale-pink in Autumn
Foliage
Green in Summer; Green in Autumn
How to care
Watch out for
Pests
Generally pest-free.
Diseases
Generally disease-free.
General care
Pruning
Cut the plant back after flowering has finished
Propagation methods
Division
Monthly care advice
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Where to grow
Persicaria campanulata (Lesser knotweed) will reach a height of 1m and a spread of 1m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Low Maintenance, Prairie planting
Cultivation
Plant in any moist soil in sun or partial shade.
Soil type
Clay, Loamy
Soil drainage
Moisture-retentive, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
North, South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 8, Zone 7, Zone 6, Zone 5
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Clay, Loamy | Tell us... |
| Soil drainage: | Moisture-retentive, Moist but well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Partial Shade, Full Sun | Tell us... |
| Aspect: | North, South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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