1. It contains the genetic material of a single parent and thus can maintain all the desired qualities of the parent plant as it will remain as its clone.
2. Since the new plants are of a single parent, this will eliminate the processes like pollination, etc. Also, plants tend to reach the mature phase much before than a plant grown from a seed, which helps to save a lot of time for the commercial producers.
3. Crops like banana, sugarcane, etc which don't produce viable seeds can be raised using vegetative propagation.