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Herbaceous Perennial

Penstemon 'Raven' (Bird Series)
  • RHS AGM
  • RHS Plants for pollinators

penstemon 'Raven'

'Raven' is a semi-evergreen perennial making a clump of stiffly erect stems to 1m in height, with narrowly ovate leaves and panicles of deep purple, bell-shaped flowers 4.5cm in length, the throat white, striped deep red

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple White Green
Autumn Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

South–facing or East–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H3
Botanical details
Family
Plantaginaceae
Native to the UK
No
Foliage
Semi evergreen
Habit
Clump forming
Genus

Penstemon may be deciduous or evergreen perennials or subshrubs, with simple, narrow leaves and racemes or panicles of bell-shaped or funnel-shaped flowers in summer and early autumn

Name status

Accepted

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How to grow

Cultivation

Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with dry winter mulch

Propagation

Propagate by softwood cuttings in early summer or semi-hardwood cuttings in midsummer. Propagate by division in spring

Suggested planting locations and garden types
  • Cottage and informal garden
  • Flower borders and beds
Pruning

Deadhead after flowering to maintain vigour. Then cut back to base in early spring

Pests

May be attacked by slugs, snails, glasshouse red spider mite, and leaf and bud eelworms

Diseases

Generally disease free

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