The lower part of the potted plant has begun to become lignified in four years. You can twist it at the bottom first and then let it grow. It may be better to plant it on the ground earlier. The original poster can bend it to 1 cm. It mainly depends on the technical level. Trees with a horizontal height of seven to eight centimeters can be bent, but they are not as natural as those that have been bent since childhood. You can use tools for bending and cutting. Various techniques.