Aim to sow
0.47 inches (1.2 cm) deep and try to ensure a gap of at least
3.12 inches (8.0 cm). Soil temperature should be kept higher than
4°C / 39°F to ensure good germination.
By our calculations, you should look at sowing Savoy Melissa about 45 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Savoy Melissa is a hardy plant.