To plant a container-grown rose, thoroughly water the rose while it is still in the pot. Dig the planting hole as you would for bare-root roses (see Planting Bare-Root Roses), leaving a small mound in the middle.

Remove the rose from its container. If it is resistant, don't pull on it. Instead, lay the container on its side and roll it gently, or use a sharp knife to cut around the inside edges of the container. Then use your fingers to loosen the soil on the surface of the rootball and to unfold any twisted roots.

Place the rose in the planting hole and spread out its roots. Add soil as needed to adjust the planting height (See Rose-Planting Basics). Fill in the hole with the soil you removed, and water well. If the soil settles, gently pull the plant up and add more soil beneath it, and then water again.

Add mulch around the base of the plant, keeping it away from the trunk of the rose.