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Annual Biennial

Cosmos bipinnatus 'Apollo White' (Apollo Series)
  • RHS AGM
  • RHS Plants for pollinators

cosmea 'Apollo White'

A half-hardy annual, to 65cm in height, with finely-divided green leaves and, from summer into autumn, white daisy-like flowers, to 10cm in diameter, with prominent yellow centres

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
1 year
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Yellow Green
Autumn White Yellow Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Asteraceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus

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

Name status

Unresolved

How to grow

Cultivation

Grow in moist, but well-drained soil in full sun. Suited to annual or cut-flower borders or as a summer infill

Propagation

See sowing seeds indoors

Suggested planting locations and garden types
  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
  • Cut flowers
  • Flower borders and beds
Pruning

Deadhead to prolong the flowering season

Pests

May be susceptible to aphids and slugs

Diseases

May be susceptible to grey moulds

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