Sow at a depth of approx.
0.58 inches (1.5 cm) and aim for a distance of at least
9.91 inches (25.4 cm) between Kohl rabi plants.
By our calculations, you should look at sowing Early Purple Vienna about 35 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Early Purple Vienna is a very hardy plant.