Keep in mind when planting that Driemaal wit is thought of as hardy, so this plant will survive close to or on freezing temperatures.
Try to aim for a seed spacing of at least
9.75 inches (25.0 cm) and sow at a depth of around
1.95 inches (5.0 cm).
By our calculations, you should look at sowing Driemaal wit about 1 days after your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Driemaal wit is a hardy plant.