WHEN TO SOW
April to May
WHERE TO SOW
Sow seed thinly, 12mm (1/2") deep in drills 45cm (18") apart in well cultivated soil raked to a fine tilth. Germination usually takes 15-21 days.
WHAT TO DO NEXT
When large enough to handle, thin to 45cm (18") apart.
FOR EARLIER SOWINGS
Sow indoors individually in 7.5cm (3") pots at 20-25°C (68-77°F). When well grown, gradually acclimatise to outdoor conditions before planting out after risk of frost in a well-drained soil in full sun.
July to September
Plants may need staking in exposed areas. When flowers have faded, hang flower heads by strings to feed the birds.