Vegetative propagation is an asexual plant reproduction method where plant parts like leaves, roots, and stems are used to generate new plants. There are two types of vegetative propagation: natural propagation which occurs without human interference, and artificial propagation which is carried out by humans through methods like cuttings, grafting, layering, and tissue culture to produce new plants. Cuttings involve taking stem or leaf cuttings and planting them to develop adventitious roots and form new plants.