The Botanical Garden at DIPSAR is used by M. Pharm and Ph.D. students working on herbal projects for growing plants for use in their experiments and collection. Here herbs are cultivated according to their season to get maximum yield of useful component of herbal drug. At present one herb is used to get constant yield on mass scale, its sowing is done in April and is harvested in August. This helps in obtaining constant and good quality of active principles. It also helps in training PG students about collection and cultivation of natural products.