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Annual Biennial

Cosmos 'Sensation Purity'

cosmos 'Sensation Purity'

An upright, bushy, half-hardy annual to 90cm tall, with finely-divided foliage. In summer and autumn, branching stems bear saucer-shaped flowers in pure white with a yellow eye

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Green
Autumn White Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Asteraceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
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 moderately fertile, moist but well-drained soil in full sun

Propagation

See sowing seeds indoors

Suggested planting locations and garden types
  • Cottage and informal garden
  • Cut flowers
  • Flower borders and beds
Pruning

Deadhead regularly to prolong the flowering season

Pests

May be susceptible to aphids and slugs

Diseases

May be susceptible to grey moulds

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