The Sensation strain of Cosmos is an All American Selections award winner. ‘Radiance’ has single deep rose flowers with a dark crimson centre. The flowers are 8 to 10cm across. Height 120cm.
When to sow: September-October-November
Where to sow: In situ or in individual pots
Depth to sow: 1/2 cmAspect: Full sun or as sunny a spot as possible.
Soil: Prepared, well drained, fertilised soil. Add lime if soil is too acid.
Spacing: Between plants: 30-50cm
Directions: Plant seed 1/2 cm deep into their permanent position in the garden when the soil warms up. September in mild districts, November in cold districts. Seed can also be planted individually into a 5cm or 7.5cm pot in early spring and planted out when the weather warms up. A succession of flowers will be produced from January until April. They are a good cut flower as well as a superb garden plant.