Space plants 20-30 cm (10-12″) apart. Grows to 20-30 cm tall.
3 mm (1/8″)
Full sunlight. Good drainage. Soil pH 6 to 7. Average soil. Can survive in dry soils.
Seeds should sprout in 14-21 days.
Aphids, slugs, snails
Sow every three weeks from just before the last frost until the start of summer. Or start indoors, 4 or 6 weeks in advance. Transplant after last frost.
Regular feed. Regular watering during prolonged dry periods.
To capture the seeds, cut stems when the seed pods start to dry out a bit and hang upside down in a brown paper bag. As the seeds dry, they drop into the bottom of the bag. Collect the seed and store in an airtight container in a cool, dark place.