Start seeds indoors six weeks before last frost date.
Try to aim for a seed spacing of at least 0.78 inches (2.0 cm) and sow at a depth of around 0.39 inches (1.0 cm). For optimal germination, soil temperature should be a minimum of 12°C / 54°F.By our calculations, you should look at sowing Yellow banana about 42 days before your last frost date.