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Bishy Barnabees Cottage Garden

Cosmos Purity

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Cosmos Purity is incredibly simple but absolutely stunning for it. Pure white.  A classic if ever there was one. Its unadorned beauty is the perfect way to express your refined sense of expression. Cosmos Purity can stand out and make a statement.

Cosmos cannot cope with even the slightest smidgeon of frost so make sure you sow these undercover in April/May and acclimatise over a week or so before planting out when all risk of frost has passed. 

Seed Quantity 100 Seeds

Type Annual

Genus Cosmos bipinnatus

Sow Seeds Sow undercover from mid April or direct from the end of May.  Pinch out when plants are 15-20cm tall.

Plant Out Plant out when all risk of frost has passed.  

Will require support.  

Keep cutting or deadheading to encourage more flowers

Flowers July-October

Height & Spread 90cm high x 30cm spread

Cosmos Purity

RHS Plants for Pollinators.

The RHS Plants for Pollinators mark is only given to plants that support pollinating insects.

Find out more at

    Single white Cosmos Purity flower amidst greenery
    Cluster of white Cosmos Purity flowers in natural light
    Honeybee collecting nectar from Cosmos Purity bloom
    Cosmos Purity plants swaying in the garden breeze
    Cosmos Purity flowers attracting pollinators
    Arrangement of Cosmos Purity flowers in a vase
    Close-up of white Cosmos Purity blossoms
    Macro shot of a bee on a Cosmos Purity flower
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