Aim to sow
0.47 inches (1.2 cm) deep and try to ensure a gap of at least
0.98 inches (2.5 cm). Soil temperature should be kept higher than
13°C / 55°F to ensure good germination.
By our calculations, you should look at sowing Saxa 3 about 28 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Saxa 3 is a tender plant.