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). Soil temperature should be kept higher than
20°C / 68°F to ensure good germination.
By our calculations, you should look at sowing Hypnotica Bronze bi-color about 60 days before your last frost date.
As Hypnotica Bronze bi-color is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.