• 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

Passiflora × violacea

violet passion flower

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
violet passion flower

© RHS 1999

  • Other common names violet passion flower

  • Family Passifloraceae

  • Genus Passiflora are mostly tender tendril-climbing shrubs, with simple or palmately-lobed, generally evergreen leaves and showy flowers of distinctive structure with often colourful coronal filaments, followed by conspicuous fruits, edible in some species

  • Details P. x violacea is an evergreen climber to 6m, with 5-lobed leaves and bowl-shaped, deep reddish-purple flowers to 12cm across, coronal filaments deep violet with white tips; fruits ovoid, green, often sterile

Characteristics

  • Foliage Evergreen

  • Habit Climbing

  • 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

Sunlight

  • Full Sun

  • Partial Shade

  • Aspect South-facing or East-facing

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • Sand

    Sand

  • MoistureMoist but well-drained

  • SoilLoam, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Under glass grow in loam-based potting compost such as John Innes No. 3 in full light with shade from hot sun. Water freely when in growth and sparingly in winter. Well suited for a conservatory. May be grown outdoors in most fertile, moist but well-drained soils in mild areas. Hardy to about -1°C, an excellent drainage is essential, but best grown under cover. Provide support for climbing stems and shelter from cold, drying winds

Propagation Propagate by seed sown at 13 to 18 °C in spring or root semi-hardwood cuttings in summer. Layering can be carried out in spring or autumn

Suggested planting locations and garden types Wall-side Borders Patio & Container Plants

How to care

Pruning Pruning group 11 or pruning group 12 in early spring

Pests Glasshouse red spider mite, scale insects and glasshouse whitefly may be a problem under glass

Diseases Generally disease free

Advertise here

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.