penstemon 'Sour Grapes'
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Sour Grapes' is an erect perennial to 60cm in height, with lance-shaped leaves and dense panicles of tubular, two-lipped flowers blending purple and blue shades, whitish within the throat
Scientific classification
- Species
- penstemon 'Sour Grapes' (Penstemon 'Sour Grapes')
- 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 'Sour Grapes' pictures
Distribution of penstemon 'Sour Grapes'
Distribution map
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Culture
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Toxicity
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Quick identification of penstemon 'Sour Grapes'
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penstemon 'Sour Grapes' care guide
- Moderate watering, avoid winter wet around the crown
- Watering
- Full sun · Partial shade
- Sunlight
- Information to be completed
- Ideal temperature
Watering
Moderate watering, avoid winter wet around the crown
Fertilizing
FertilizingLight balanced feed in spring and early bloom
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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