Aim to sow
0.5 inches (1.27 cm) deep and try to ensure a gap of at least
1.95 inches (5.0 cm).
By our calculations, you should look at sowing Double Dwarf Jewel Mix about 14 days before your last frost date.
Double Dwarf Jewel Mix is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.