Cosmos ‘Purity’ towers over the garden giving armloads of pure white single flowers.
Taller and with more flowers than any other variety I have grown.
Invaluable for weddings as well as being a handsome garden plant. Blooms dance in the breeze attracting bees and butterflies.
How to Grow:
One of the easiest annuals to start from seed and not too cold sensitive. Cosmos like moist but well drained conditions.
Sow one seed per cell in early Spring, into a 40 cell tray or sow 5 seeds to a 9cm pot. Cosmos are tolerant of ‘pricking out’.
Seeds will benefit from ‘a bit of warmth’ to germinate.
Plant 30cm apart after the last frost.
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Variety: Cosmos bipinnatus
Type: Half Hardy Annual
Position: Plants require full sun
Spacing: 30cm apart
Height: 90-110 cm
Harvest: June onwards
Seeds per packet: 50
Cutting /Vase Life:
Pick as soon as flowers open but before pollinators reach them for the longest vase life. A true ‘cut and come again flower. Deadhead regularly to maintain flowering. We rest our stems for a few hours in water, this is called conditioning. Cosmos will continue to open and grow in the vase giving arrangements a magical feel.