Cosmos - Psyche
This cosmos features distinct and charming semi-double and single, large, waved, upright blooms. It is 80% true from seed as they can make fine cut flowers and can also be used as summer flowering pot plants for the cold greenhouse. It flowers from summer to autumn. Height: 90cm.
Sow 3mm deep in spring at 21-24C in a good seed compost. Keep soil damp but not wet, sealing in a polythene bag after sowing is helpful. Germination usually takes 5-10 days. When seedlings are large enough to handle, transplant and grow on in cooler conditions. Gradually acclimatise to outdoor conditions for 1-15 days before planting out after all risk of frost, 6cm apart. Plant in a sunny spot on light well drained soil. For pot plants, transplant the seedlings into 7.5cm pots, grow cool, well ventilated and give plenty of light, but shade from direct sun.