Try to aim for a seed spacing of at least
7.8 inches (20.0 cm) and sow at a depth of around
0.25 inches (0.64 cm). Soil temperature should be kept higher than
10°C / 50°F to ensure good germination.
By our calculations, you should look at sowing Comune 2 about 35 days before your last frost date.
As Comune 2 is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.