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Cosmos 'Cupcakes'

Growing guide

Cosmos 'Cupcakes'

RHS Plants for Pollinators

A delicate free-flowering Cosmos with “cupcake” flowers in shades of pink and white. Will flower from early Summer, and can continue flowering until the first frosts in Autumn.

Plant type
Half-Hardy Annual
Position
Full Sun
Height
90cm
Spread
60cm

Growing calendar

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Sow indoors
Sow outdoors
Flowering

Sowing & growing

Sow inside Feb-May into good quality seed compost and lightly cover with a thin layer. Keep at 21°C until germination. Prick out the seedlings when they are big enough to handle. Grow on in cool and light conditions and plant out after the risk of frosts have passed. Alternatively sow directly where they are to flower in May-Jun. Pinch out tips of younger plants to encourage bushier growth with more flowers.

Aftercare

Keep well watered until established and deadhead regularly to encourage continued flowering.

Ref. SEC107