Sow at a depth of approx.
0.25 inches (0.64 cm) and aim for a distance of at least
3.96 feet (1.22 metres) between Rose plants.
By our calculations, you should look at sowing Königin von Dänemark about 35 days before your last frost date.
Königin von Dänemark is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.