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Not to be missed!

Persicaria campanulata

Persicaria campanulata
Lesser Knotweed, Bellflower Smartweed

10 reviews
5,0/5
10 reviews
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Despite the distance, the young plant arrived in perfect condition, with beautiful delicate foliage, quite tall and variegated in colours. We are excited to see what it will become!

Maréva, 22/04/2020

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This plant carries a 12 months recovery warranty

More information

Value-for-money
The Persicaria campanulata is a tall and sturdy perennial, bearing in summer large, pale pink spikes, wide and airy.
Height at maturity
1.20 m
Spread at maturity
50 cm
Exposure
Sun, Partial shade, Shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Recommended planting time February to April, September to November
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Flowering time July to October
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Description

The Persicaria campanulata is a tall, robust perennial, bearing in summer large, pale pink spikes, wide and airy.

 

This tall knotweed forms a bush reaching 1.20m (4ft) to 1.50m (5ft) in height, it is slightly running, but not invasive. The ovate, deciduous leaves, dark green in colour, have a whitish underside.

In early summer, the small clusters of pale pink flowers are borne in large numbers on branched stems. Not demanding on the nature of the soil, the Persicaria campanulata likes moist soils and partial shade.

In the garden, it will thrive under the same conditions as hostas, loosestrifes and rodgersias.

Persicaria campanulata in pictures

Persicaria campanulata (Flowering) Flowering
Persicaria campanulata (Foliage) Foliage

Flowering

Flower colour pink
Flowering time July to October

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 1.20 m
Spread at maturity 50 cm
Growth rate normal

Botanical data

Genus

Persicaria

Species

campanulata

Family

Polygonaceae

Other common names

Lesser Knotweed, Bellflower Smartweed

Origin

Cultivar or hybrid

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Planting and care

The Persicaria campanulata is a lovely species to plant in a cool and fertile soil for it to thrive. In our garden, we cultivate it on the edge of a fresh woodland area, alongside Lysimachia clethroides and Brunnera macrophylla.

Planting period

Recommended planting time February to April, September to November

Intended location

Suitable for Meadow, Woodland edge
Type of use Back of border
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun, Partial shade, Shade
Soil pH Neutral
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, Rich and fertile

Care

Pruning No pruning necessary
Overwinter Can be left in the ground
5/5
10 reviews
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