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 Silver Wedding Celebration about 35 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Silver Wedding Celebration is a hardy plant.