A tree trimming method that is related to a convex method of pre-determined angular trimming of deciduous trees. The methodology uses pre-determined angle cuts for deciduous vegetation to re-orient new growth and shape shade trees, shrubs and ornamental trees. This pre-determined “convex cut” makes the curved cuts reorient the tree limbs to a pre-desired radial shape and encourages the tree limbs to re-orient and grow. This results in the deciduous tree canopy that is round or radial in shape. The pre-determined angle cutting proves useful for either on the outside perimeter or for clearing inside the tree canopy for power lines. Essentially any pre-determined angle of clearing or directional shaping to re-orient new growth can be done with this cutting method.