Cardamom essential oil is a perennial, reed-like herb, growing wild and is cultivated in India and Sri Lanka. It grows up to 4 meters (13 feet) and has long, green silky blades, small yellowy flowers, with a violet tip and a large fleshy rhizome, similar to ginger. Oblong gray fruits follow the flowers, each containing many seeds. Cardamom oil is particularly helpful for the digestive system. It works as a laxative and soothes colic, wind, dyspepsia and nausea - even nausea in pregnancy. It warms the stomach and helps with heartburn.