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.
For more detailed growing instructions join our ‘Grow-A-Long’ and for busy gardeners you can now plan ahead with our Spring Grow-A-Long Handbook.
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.