Ensure a seed sowing distance of
7.02 inches (18.0 cm). Soil temperature should be kept higher than
19°C / 66°F to ensure good germination.
By our calculations, you should look at sowing Blanjou about 56 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Blanjou is a hardy plant.