Ensure a distance of
0.39 inches (1.0 cm) between seeds when sowing - look to sow at a depth of approximately
0.23 inches (0.6 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 champion scarlet horns 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 champion scarlet horns is a very hardy plant.