Sunlight – Double Knockout Roses require between 5 and 6 hours of sunshine daily. Plant in full sun.
Soil – Prefers well-drained, acidic, moist soil that is not overly wet. Shallow roots also mean mulch is needed around the base of the tree to improve drainage and water absorption.
Water – Water 2 to 3 times a week for the first year of growth. Water more frequently in summer, ensuring at least 1 inch of water reaches the plant weekly.
Pruning – Moderate pruning may be required throughout the lifespan of the Double Knockout Rose, though much less than is required of the regular rose.