Aim to sow
0.58 inches (1.5 cm) deep and try to ensure a gap of at least
3.12 inches (8.0 cm). For optimal germination, soil temperature should be a minimum of
24°C / 75°F.
By our calculations, you should look at sowing White Phoenix F1 about 14 days before your last frost date.
White Phoenix F1 is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.