rock penstemon
Also known as: cliff beardtongue
P. rupicola is a creeping dwarf evergreen sub-shrub to 6cm in height, with small, rounded glaucous leaves and tubular, two-lipped rosy-pink flowers 3cm in length opening from late spring
Scientific classification
- Species
- rock penstemon (Penstemon rupicola)
- Genus
- Penstemon
- Family
- Plantaginaceae
- Information to be completed
- Toxicity
- Shrubs
- Plant type
- Up to 10 cm
- Height
- 0.1-0.5 metres
- Spread
- Evergreen
- Foliage
- Matforming
- Habit
- Spring · Summer · Autumn · Winter
- Season of interest
- Full sun · Partial shade
- Sunlight
- Information to be completed
- Ideal temperature
rock penstemon pictures
Distribution of rock penstemon
Distribution map
Western North America
Information to be completed
Culture
Information to be completed
Toxicity
Information to be completed
Quick identification of rock penstemon
Information to be completed
rock penstemon care guide
- Allow full drying between waterings, provide sharp drainage
- Watering
- Full sun · Partial shade
- Sunlight
- Information to be completed
- Ideal temperature
Watering
Allow full drying between waterings, provide sharp drainage
Fertilizing
FertilizingLight diluted fertilizer once monthly through spring and summer
Pruning
PruningDeadhead after flowering to maintain vigour. Then cut back to base in early spring
Propagation
PropagationPropagate by seed
Growing
GrowingGrow in poor to moderately fertile, very gritty, well-drained soil in full sun. The plant illustrated here is the cultivar 'Diamond Lake'
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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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