Sow at a depth of approx.
0.04 inches (0.1 cm) and aim for a distance of at least
11.7 inches (30.0 cm) between Cape daisy plants. For optimal germination, soil temperature should be a minimum of
18°C / 64°F.
By our calculations, you should look at sowing Sunny Sonja about 56 days before your last frost date.
Sunny Sonja is half hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.