Sow
0.23 inches (0.6 cm) deep with a guideline distance of
0.39 inches (1.0 cm). Soil temperature should be kept higher than
16°C / 61°F to ensure good germination.
By our calculations, you should look at sowing Nantes 2 about 14 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Nantes 2 is a very hardy plant.