Aim to sow 0.2 inches
(0.5 cm) deep and try to ensure a gap of at least 7.8 inches
(20.0 cm). For optimal germination, soil temperature should be a minimum of 10°C / 50°F
By our calculations, you should look at sowing Orange Button about 35 days before your last frost date.
Orange Button is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.