Start seeds indoors six weeks before last frost date.
Sow 0.78 inches (2.0 cm) deep with a guideline distance of 0.78 inches (2.0 cm). Soil temperature should be kept higher than 12°C / 54°F to ensure good germination.By our calculations, you should look at sowing Heidi about 42 days before your last frost date.
Plant to the first set of true leaves to promote strong root growth.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Heidi is a tender plant.This variety supposedly originally comes from Camaroon, Africa. It was given to Carolyn Male via one of her students who was originally from the country.