Sanguinaria canadensis f. multiplex 'Plena' (d)

RHS Plant Profile

double Canada puccoon 'Plena'

Synonyms

Sanguinaria canadensis 'Flore Pleno'
Sanguinaria canadensis 'Plena'

Herbaceous Perennial

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A rhizomatous perennial to 20cm in height, with grey-green, kidney-shaped leaves enlarging to 15cm in width after flowering. Flowers solitary, 7cm in width, white, fully double

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing or East–facing
Exposure: Exposed
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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Papaveraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
Genus: Sanguinaria are rhizomatous herbaceous perennials with kidney-shaped, lobed blue-green leaves and cup-shaped white flowers opening with the leaves in spring
Name Status: Accepted

How to Grow

Cultivation

Grow in a moderately fertile, moist but well-drained soil that does not dry out; best in full sun or partial shade. Usually needs support and the rhizomes can spread and become invasive so site with care

Propagation

Propagate by division in spring or autumn

Suggested planting locations and garden types

Cottage and informal garden
Rock garden
Underplanting of roses and shrubs
Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to slugs

Diseases

Generally disease-free