Soak seeds overnight or for at least 4 hours before planting.
Try to aim for a seed spacing of at least 1.95 inches (5.0 cm) and sow at a depth of around 0.5 inches (1.27 cm). Soil temperature should be kept higher than 18°C / 64°F to ensure good germination.By our calculations, you should look at sowing Spitfire about 14 days before your last frost date.
Can be started in 2 1/2 in. containers and transplanted when they are about two inches tall. In Florida my nasturtiums prefer partial sun especially when days are long.
Ensure that temperatures are mild (minimum night temperatures should be around 18°C / 64°F) and all chance of frost has passed before planting out, as Spitfire is a tender plant.Harvest the leaves and flowers when the supply is plenty.