Our recommendation for growing outstanding roses is to dig a big hole (2 feet deep and 2 feet wide). Fill the bottom 6 inches with aged cow or horse manure. Save ½ of the soil that came from the hole and mix it 50/50 with a good mulch or peat moss. Refill the hole then plant the rose in the center of a 2- to 3-inch mound to compensate for the soil settling later. Water well.
Plant your roses anytime from spring to early fall depending on the weather in your area. Roses need to be in the ground at least 6 weeks before your first frost in the fall to allow the roots time to establish before the weather changes and the plant goes dormant, or they can be planted after the last frost in the spring with the ground has warmed up to wnsure the rose will establish quickly.