penstemon 'Precious Gem'
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Precious Gem' is a semi-evergreen perennial to 60cm tall with purple-bronze flushed stems above dense clumps of mid-green leaves, bronze when young and red in winter. Delicate tiers of tubular pale lavender flowers, flushed pink are borne in late spring or early summer
Scientific classification
- Species
- penstemon 'Precious Gem' (Penstemon 'Precious Gem')
- 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
- Bushy
- Habit
- Spring · Summer · Autumn · Winter
- Season of interest
- Full sun · Partial shade
- Sunlight
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- Ideal temperature
penstemon 'Precious Gem' pictures
Distribution of penstemon 'Precious Gem'
Distribution map
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Culture
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Toxicity
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Quick identification of penstemon 'Precious Gem'
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penstemon 'Precious Gem' care guide
- Moderate regular watering, avoid prolonged drought and stagnant waterlogging
- Watering
- Full sun · Partial shade
- Sunlight
- Information to be completed
- 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 and prolong flowering, then cut back to 15cm in late winter or early spring
Propagation
PropagationPropagate by softwood cuttings in early summer or semi-hardwood cuttings in midsummer
Growing
GrowingPenstemon cultivation in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with a dry winter mulch
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Common pests and diseases
Diseases
May be subject to a downy mildew, grey moulds, powdery mildews and a fungal leaf spot
Pests
May be attacked by slugs, snails, aphids and leaf and bud eelworms
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