penstemon 'Raven'
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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
Scientific classification
- Species
- penstemon 'Raven' (Penstemon 'Raven')
- Genus
- Penstemon
- Family
- Plantaginaceae
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- Toxicity
- Herbaceous Perennial
- Plant type
- 0.5-1 metres
- Height
- 0.1-0.5 metres
- Spread
- Semi evergreen
- Foliage
- Clump forming
- Habit
- Spring · Summer · Autumn · Winter
- Season of interest
- Full sun · Partial shade
- Sunlight
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- Ideal temperature
penstemon 'Raven' pictures
Distribution of penstemon 'Raven'
Distribution map
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Culture
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Toxicity
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Quick identification of penstemon 'Raven'
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penstemon 'Raven' care guide
- Moderate regular watering, avoid prolonged drought and stagnant waterlogging
- Watering
- Full sun · Partial shade
- Sunlight
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- Ideal temperature
Watering
Moderate regular watering, avoid prolonged drought and stagnant waterlogging
Fertilizing
FertilizingBalanced perennial feed every four weeks spring through summer growth
Pruning
PruningDeadhead after flowering to maintain vigour. Then cut back to base in early spring
Propagation
PropagationPropagate by softwood cuttings in early summer or semi-hardwood cuttings in midsummer. Propagate by division in spring
Growing
GrowingGrow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with dry winter mulch
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Common pests and diseases
Diseases
Generally disease free
Pests
May be attacked by slugs, snails, glasshouse red spider mite, and leaf and bud eelworms
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