Sow
0.47 inches (1.2 cm) deep with a guideline distance of
0.98 inches (2.5 cm). For optimal germination, soil temperature should be a minimum of
16°C / 61°F.
By our calculations, you should look at sowing White Gem about 15 days after your last frost date.
White Gem is half hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.