Cosmos bipinnatus 'Purity' / Seeds

(Code: B&T_039)

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Cosmos bipinnatus 'Purity' / Seeds

This is one of the best garden annuals.  Cosmos ‘Purity’ has large pure white flowers with yellow centres, coming out from June/July all the way to October.  The flowers grow to a good height of 90-120cm, and are surrounded by attractive feathery leaves.  Flowering continues to the first frosts with dead heading.  These make good cut flowers.

Cosmos ‘Purity’grows best in full sun and moist well drained soil. Plants are attractive to pollinators.
 

Pack of approx 150 seeds.  Sow indoors from March to May, or directly in the ground once all risk of frost has passed (May to June depending on where you are in the UK).  Sowing instructions are printed on the packet.


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Hardiness Half-hardy annual (RHS Hardiness H3)
Height 90 - 120cm
Spread 40 - 50cm
Conditions  Full sun and moist well-drained soil.
Sow

Sow indoors from February to April 10mm deep in moist seed compost.   Keep at 20-25°C and seeds germinate in 1-2 weeks.  Pot on young seedlings and harden off before planting out after the last frost. Or sow directly in the ground May to June in cultivated soil.  Rake over and seedlings emerge in 1-3 weeks depending on the temperature.  

Grow Grow in full sun and moist well drained soil.  Pinch out tips of seedlings to encourage bushy plants.  Provide support in exposed sites.  Deadhead during the summer to prolong flowering. Remove the plants in the early autumn once they have finished flowering.