• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Jovellana violacea

AGM plants

AGM plants have been through a rigorous trial and assessment programme. They are:

  • Excellent for ordinary use in appropriate conditions
  • Available to buy
  • Of good constitution
  • Essentially stable in form & colour
  • Reasonably resistant to pests & diseases

© RHS

  • Synonyms Calceolaria violacea

  • Family Calceolariaceae

  • Genus Jovellana are herbaceous perennials or semi-evergreen sub-shrubs. They have toothed or lobed leaves in opposite pairs and showy, two-lipped flowers

  • Details J. violacea is an upright, suckering, sub-shrub with oval, lobed leaves carried on dark red stems. Sprays of nodding, bell-shaped flowers appear in summer - they are pale purple with a yellow throat marked with small, dark purple spots

  • Plant range Chile

Characteristics

  • Foliage Semi-evergreen

  • Habit Bushy

  • 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)

    H3

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 1.5-2.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Needs a fertile, well-drained soil or compost in a sunny position. May survive outdoors in mild areas in a sheltered position protected with a dry winter mulch. Otherwise overwinter in a cool greenhouse. Can also be grown as a conservatory or cool-greenhouse plant, with good ventilation and shade from the hottest sun

Propagation Propagate by semi-ripe heel cuttings of side shoots in late summer

Suggested planting locations and garden types Flower borders and beds Wall-side Borders Cottage & Informal Garden Patio & Container Plants Mediterranean Climate Plants

How to care

Pruning Pruning group 10, in early to mid-spring

Pests Generally trouble free

Diseases Generally trouble free

Did you find the information you were looking for?

RHS members can get exclusive individual advice from the RHS Gardening Advice team.

Join the RHS now

Get involved

We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.