Planting notes. Rock cotoneaster is commonly used for many reasons, but its adaptability and easy-grow nature allow it to stick around. Faring best in well-drained, dry soil, it is a moderate grower, prefering full sun and moderate to light water. It is heat tolerant, thriving in dry summers and wet winters.
Rock cotoneaster self-sows, so remove seedlings that you don’t want to grow larger. You can trim back dead or disfigured branches, but plants looks best if allowed to mature to their full form.
It's an effective weed suppresser when used as a ground cover. During the time it takes for the plants to fill out, use mulch to control weeds.