Sow
0.39 inches (1.0 cm) deep with a guideline distance of
11.7 inches (30.0 cm). For optimal germination, soil temperature should be a minimum of
20°C / 68°F.
By our calculations, you should look at sowing Dinnerplate about 60 days before your last frost date.
Dinnerplate is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.