Aim to sow
0.06 inches (0.15 cm) deep and try to ensure a gap of at least
11.7 inches (30.0 cm). Soil temperature should be kept higher than
24°C / 75°F to ensure good germination.
By our calculations, you should look at sowing Showstopper Deep Orange about 56 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Showstopper Deep Orange is a tender plant.