Your cart

Your cart is empty

Strong, stout stems bear a profusion of pretty white flowers with a pale pink blush. It has a "Sea Shells" type flower form (sometimes bearing singles and doubles on the same plant) and makes an enchanting cut flower. Height 60-90cm (24-36"). HHA - Half hardy annual.

Growing Information

Sow February-March under glass for flowers July-September, or March-May outdoors for late summer flowering.

Sowing Information

Sow in a propagator on a windowsill or in a greenhouse at approx. 18-21°C (65-70°F) using a good quality moist compost. Cover the seeds with 6mm (1?4") sieved compost. Germination 5-10 days. Transplant seedlings into trays 5cm (2") apart and grow on. Acclimatise plants gradually before planting out 40cm (16") apart in an open sunny position. Alternatively sow direct into garden soil from March-May for late summer flowering.

NEW 2025

Suttons Seeds - Cosmos 'White Knight'

Regular price $5.99
Unit price
per 
 More payment options
100% Secure payments

Your details are protected and safe with us.

American Express
Apple Pay
Diners Club
Discover
Google Pay
Mastercard
PayPal
Shop Pay
Visa

Strong, stout stems bear a profusion of pretty white flowers with a pale pink blush. It has a "Sea Shells" type flower form (sometimes bearing singles and doubles on the same plant) and makes an enchanting cut flower. Height 60-90cm (24-36"). HHA - Half hardy annual.

Growing Information

Sow February-March under glass for flowers July-September, or March-May outdoors for late summer flowering.

Sowing Information

Sow in a propagator on a windowsill or in a greenhouse at approx. 18-21°C (65-70°F) using a good quality moist compost. Cover the seeds with 6mm (1?4") sieved compost. Germination 5-10 days. Transplant seedlings into trays 5cm (2") apart and grow on. Acclimatise plants gradually before planting out 40cm (16") apart in an open sunny position. Alternatively sow direct into garden soil from March-May for late summer flowering.