Choose a spring or fall month to plant the Oleander. Locate an area away from a place where children, pets, fruit trees or a garden is located because of the poisonous nature of the Oleander. Dig a hole with your shovel as deep as the container holding the Oleander.
Expand the width of the hole to measure two times that depth of your hole. You can measure this width by removing the plant from the container and placing the container on its side on the ground to mark one length. Pick the container up and place it back on the ground at the tip of where you last picked it up from. This measurement is two lengths.
Place the roots of the Oleander in the hole. Cover the roots with soil and fill the hole with more soil.
Water the soil.