• 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

Asclepias curassavica

bloodflower

bloodflower

© RHS 2002

  • Other common names bloodflower
    bastard ipecacuanha

    bastard pecacuanha
    blood flower
    Indian root
    matac
    matal
    red head
    swallow wort
    wild ipecacuanha

    see more
  • Family Apocynaceae

  • Genus Asclepias can be evergreen or deciduous perennials or subshrubs, with simple, entire leaves and umbel-like clusters of small, distinctively shaped flowers followed by paired fruits containing seeds embedded in silky fibres

  • Details A. curassavica is an upright evergreen sub-shrub with lance-shaped leaves and umbel-like terminal clusters of orange-red flowers 2cm across, in summer and autumn, sometimes followed by erect, ovoid fruit 6-8cm in length

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • Toxicity All parts, particularly the roots, may cause mild stomach upset if ingested

  • 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

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • Sand

    Sand

  • MoistureWell-drained

  • SoilLoam, Sand

  • pHAcid, Neutral

Size

  • Ultimate height 0.5-1 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow outdoors in fertile well-drained loamy soil in full sun in frost-free area. Under glass grow in loam-based compost. Reduce watering after flowering and keep almost dry in the winter

Propagation Propagate by seed, division or basal cuttings

Suggested planting locations and garden types Sub-tropical Patio & Container Plants

How to care

Pruning No pruning required

Pests Can get glasshouse whitefly under glass

Diseases Generally disease free

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