Aim to sow
0.39 inches (1.0 cm) deep and try to ensure a gap of at least
11.7 inches (30.0 cm). For optimal germination, soil temperature should be a minimum of
20°C / 68°F.
By our calculations, you should look at sowing Babylon about 60 days before your last frost date.
Babylon is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.