Di-erna is generally regarded as a tender plant, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.
Growing Di-erna from seed
By our calculations, you should look at sowing Di-erna about 91 days before your last frost date.
Transplanting Di-erna
Di-erna is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.