The Karvi, Strobilanthes caliosa takes eight long years to bloom. During this period, the plant has a withered look, except during the monsoons, when the dry stems and leaves take on a brilliant green hue. Then in the eighth year, tiny buds appear and as they blossom, the Karvi gets transformed into a riotous mass of purplish blue flowers.
The Karvi grows wild in various parts of Maharashtra, Gujarat and Madhya Pradesh. Its leaves have medicinal value. Their juice is said to be effective in curing stomach ailments.