Calceolaria Calynopsis Bicolour ('Klech10008'PBR)

RHS Plant Profile
slipper flower [Calynopsis Bicolour]

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Synonyms

Calceolaria 'Klech10008'PBR

Bedding Conservatory Greenhouse

A half-hardy perennial grown for its unusal, inflated, bright scarlet and yellow flowers. These are produced in clusters above the foliage in late spring and early summer. Although often grown as an annual bedding plant, it can be overwintered in frost-free conditions

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1–2 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–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)
H2

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Calceolariaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Calceolaria can be annuals, biennials, perennials or shrubs, with opposite leaves or basal rosettes, and solitary or clustered, slipper-like yellow, red or purple flowers
Name Status
Trade

How to Grow

Cultivation

Outdoors, grow in light, moderately fertile, acidic soil in sun or partial shade. Flowering is best in cool, moist conditions. Water freely and apply a balanced liquid fertiliser every 2 weeks. To overwinter plants, lift them before the first frosts and put them in pots in a frost-free greenhouse

Propagation

Propagate by seed sown under glass in early spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Hanging Basket
  • Houseplants
  • Patio and container plants
  • Bedding
  • Conservatory and greenhouse
  • Flower borders and beds
  • Garden edging

Pruning

Deadhead to prolong flowering

Pests

May be susceptible to slugs, snails and aphids

Diseases

May be susceptible to grey moulds