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Conservatory GreenhouseHouseplants

Streptocarpus 'Charlotte'
  • RHS AGM

Cape primrose 'Charlotte'

An evergreen, perennial, compact cultivar which has strappy leaves that are softly hairy and wrinkled. Pale blue flowers are borne on short stems over a long season; their throats are pale yellow and marked with purple

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Yellow Purple Green
Summer Blue Yellow Purple Green
Autumn Blue Yellow Purple Green
Winter Green
Position
  • Partial shade
Aspect

East–facing or West–facing

Exposure
Sheltered
Hardiness
H1C
Botanical details
Family
Gesneriaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Genus

Streptocarpus can be annuals, perennials or subshrubs, with usually wrinkled, lance-shaped to rounded leaves and clusters of tubular to trumpet-shaped flowers with 5 spreading lobes, often borne throughout the year

Name status

Accepted

How to grow

Cultivation

Grow as a houseplant in free-draining compost on an east or west-facing windowsill, or grow in a temperate or warm greenhouse in bright filtered light with shade from hot sun. Water sparingly as compost dries in winter and in the growing season water freely allowing compost to dry out between waterings; feed fortnightly with a high-potassium fertiliser. See Streptocarpus cultivation

Propagation

Propagate by division of clumps or by leaf cuttings in spring or summer

Suggested planting locations and garden types
  • Patio and container plants
Pruning

Deadhead regularly and remove damaged leaves

Pests

May be susceptible to glasshouse leafhoppers, mealybugs, thrips, vine weevil and tarsonemid mite

Diseases

May be susceptible to grey moulds (botrytis) or powdery mildews

Get involved

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