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Cosmos bipinnatus 'Sensation Pinkie'

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© RHS 1999

Characteristics

Plant type

Annual/Biennial

Habit

Columnar/Upright

Resilience

Hardiness

H3 (half hardy - unheated greenhouse/mild winter)

Colour

Flower

Pink and Pale Purple in Summer

Foliage

Green in Spring and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

1-2 years


Preferred common name

cosmea 'Sensation Pinkie'

Family

Asteraceae


Cosmos can be annuals or perennials with simple or pinnately divided leaves and large, long-stalked daisy-like flowers in summer

'Sensation Pinkie' is an erect, bushy annual with finely dissected leaves and single, purplish-pink flowers

Synonym(s)

  • Cosmos 'Sensation Pinkie'

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Sheltered or Exposed

Cultivation

Grow in a moderately fertile, moist but well-drained soil in full sun

Soil

  • Moist but well-drained
  • Neutral, Acid or Alkaline
  • Loam, Chalk or Sand

Propagation

Propagate by seed sown in-situ in late spring

Suggested planting locations and garden types

City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds or Cut Flowers


How to care

Pruning

Deadhead to prolong flowering

Pests

Generally pest free

Diseases

May suffer from foot rot and grey moulds