Not the plant you're looking for? Search over 300,000 plants
BogsHerbaceous PerennialSynonym

Persicaria bistorta 'Superba'
  • RHS AGM
  • RHS Plants for pollinators

red bistort 'Superba'

A vigorous, clump-forming herbaceous or semi-evergreen perennial to 95cm, with strongly veined, finely pointed ovate leaves and dense spikes of small, fat, long-flowering soft grey-pink flowers in summer through to autumn. Tends to spread more easily in sunny locations, less so in dry shade. Good for waterside, smaller gardens and at the front of a flower border

Synonyms
Persicaria bistorta 'Superba'
Polygonum bistorta 'Superbum'
Buy this plant
Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Pink Grey Silver Green
Autumn Pink Grey Silver Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

West–facing or East–facing or South–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Polygonaceae
Native to the UK
No
Foliage
Semi evergreen
Habit
Clump forming
Name status

Accepted

Advertise here

How to grow

Cultivation

Ideal for a moist soil although it can tolerate some dryness (with more of a wandering habit in dry shade). Suitable for full sun or partial shade

Propagation

Propagate by division in spring or autumn

Suggested planting locations and garden types
  • Coastal
  • Cottage and informal garden
  • Wildflower meadow
  • Banks and slopes
  • Flower borders and beds
Pruning

No pruning required. Deadhead faded spikes

Pests

Generally pest-free

Diseases

Generally disease-free

My Garden

Your free RHS gardening coach

Keep track of your plants with reminders & care tips – all to help you grow successfully

My plants
My calendar

My plants

My calendar

My ideas
Manage membership

My ideas

My advice

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.