Plant in a location that enjoys full sun and remember to water often. Keep in mind when planting that Double Rose is thought of as very hardy, so this plant will tend to survive through freezing conditions.
Growing Double Rose from seed
By our calculations, you should look at sowing Double Rose about 49 days before your last frost date.
Transplanting Double Rose
As Double Rose is very hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.