Echinacea purpurea 'White Swan'

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RHS Plant Profile

purple coneflower 'White Swan'

Synonyms

Rudbeckia 'White Swan'

Herbaceous Perennial

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Clump-forming, perennial coneflower to 70cm tall, producing bold, white daisy-like flowers with a prominent central orange to ginger-green cone, flowering from midsummer to autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2鈥�5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Loam Sand

Moisture: 奥别濒濒鈥揹谤补颈苍别诲
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South鈥揻acing or West鈥揻acing or East鈥揻acing
Exposure: Exposed or Sheltered
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: Asteraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
Genus: Echinacea are erect, clump-forming rhizomatous perennials with simple or pinnately lobed leaves and solitary, long-stalked daisies with prominent conical central disks and often drooping ray florets; attractive to butterflies
Name Status: Accepted

How to Grow

Cultivation

Grow in well-drained, humus-rich soil ideally in full sun with protection from excessive winter wet. See echinacea cultivation

Propagation

Propagate by division in spring or autumn although they resent a lot of disturbance. Propagate by root cuttings from late autumn to early winter.

Suggested planting locations and garden types

Prairie planting
Wildlife gardens
Wildflower meadow
Cottage and informal garden
Patio and container plants
City and courtyard gardens
Cut flowers
Flower borders and beds

Pruning

Cutting back stems as the blooms fade may encourage further flowering; or seedheads may be kept on the plant for winter interest

Pests

Generally pest-free but young growth may be susceptible to slugs

Diseases

Generally disease-free