Streptocarpus 'Pink Leyla'

RHS Plant Profile

Cape primrose 'Pink Leyla'

John Fielding

Houseplants Conservatory Greenhouse

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A large-flowered cultivar forming a loose clump of strap-shaped leaves. Upright stems bear bicoloured flowers; the upper petals white and the lowers petals heavily suffused and veined with pink.

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Clay Sand

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H1C

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Gesneriaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Clump forming
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 or leaf cuttings in spring or summer

Suggested planting locations and garden types

Houseplants
Conservatory and greenhouse

Pruning

Cut off spent flower stalks

Pests

May be susceptible to glasshouse leaf hoppers, mealy bug, thrips, vine weevil, greenfly and tarsonemid mite

Diseases

May be susceptible to grey moulds (botrytis) and powdery mildew