• 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

Sanguinaria canadensis

Canada puccoon

  • Other common names Canada puccoon

    red puccoon
    Indian paint
    Red Indian paint
    sweet slumber

    see more
  • Family Papaveraceae

  • Genus Sanguinaria are rhizomatous herbaceous perennials with kidney-shaped, lobed blue-green leaves and cup-shaped white flowers opening with the leaves in spring

  • Details S. canadensis is a rhizomatous perennial with fleshy underground stems that exude red sap when cut. As the blue-grey leaves unfurl in spring, it bears white-petalled flowers with yellow anthers. Petals are sometimes pink or grey-flushed on the reverse. Leaves are rounded with scalloped edges

  • Plant range E.N America


  • Foliage Deciduous

  • Habit Mat forming

  • 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)




  • Partial Shade

  • Full Sun

  • Aspect West-facing or East-facing or South-facing

  • Exposure Sheltered


  • Clay


  • Loam


  • MoistureMoist but well-drained

  • SoilClay, Loam

  • pHAcid, Alkaline, Neutral


  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in sun or semi-shade in humus-rich, well-drained soil, such as a woodland garden

Propagation Propagate by division in autumn or spring or by propagate by seed in autumn; germination can be erratic over the following 2 years

Suggested planting locations and garden types Cottage & Informal Garden

How to care

Pests Generally trouble-free

Diseases Generally trouble-free

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