Sow at a depth of approx.
0.58 inches (1.5 cm) and aim for a distance of at least
3.12 inches (8.0 cm) between Cauliflower plants. Soil temperature should be kept higher than
24°C / 75°F to ensure good germination.
By our calculations, you should look at sowing Nessie F1 about 14 days before your last frost date.
As Nessie F1 is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.