Seed is sterile or does not come true to plant.
Start seeds indoors six weeks before last frost date.
By our calculations, you should look at sowing Tropical Ruby about 42 days before your last frost date.
Transplant out when around 15cm (6 inches) high.
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 Tropical Ruby is a tender plant.