Keep in mind when planting that Penny Orchid Frost is thought of as half hardy, so it will need protecting in periods of cold weather.
Aim to sow
0.0 inches (0.0 cm) deep and try to ensure a gap of at least
8.97 inches (23.0 cm). Soil temperature should be kept higher than
18°C / 64°F to ensure good germination.
By our calculations, you should look at sowing Penny Orchid Frost about 90 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Penny Orchid Frost is a half hardy plant.