Sow
0.58 inches (1.5 cm) deep with a guideline distance of
3.12 inches (8.0 cm). For optimal germination, soil temperature should be a minimum of
24°C / 75°F.
By our calculations, you should look at sowing Ruapehu about 14 days before your last frost date.
Ruapehu is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.