Sow under cover in autumn, planting out in spring to flower that year. Or direct sow in spring to flower in later summer. They benefit from darkness, so cover with compost. They like the fluctuating temperatures of autumn to germinate. Chill them in the freezer then give them a little heat from a mat or indoors. Once germination has occurred, let them grow on in cooler temperatures. Plants will overwinter and flower even earlier the following year.
Perennial
Full Sun
Space 30cm / 12 inches apart
120 - 140 days to maturity
Height: 60 cm
Approximately 100 seeds per packet