When Planting your Rose Bush, add:
25 Lbs. of Composted Cow Manure
1 cup Bone Meal
1/2 cup Epsom Salts (Magnesium Sulfate)
Rose Fertilizer (Follow directions on fertilizer)
Mix with backfill and water plant thoroughly.
Repeat as a top dressing in the Spring and Fall.
Water thoroughly on a daily basis for the first three to four weeks and taper off as necesarry.