Chamomile’s flowers resemble tiny daisies, but one sniff will have you thinking of apples instead. The herb has long been grown for its healing properties. Its smell was thought to relieve depression and to encourage relaxation. Medieval monks planted raised garden beds of chamomile, and those who were sad or depressed lay on them as therapy. Chamomile also was once a strewing herb, spread on bare floors so that the scent was released when people walked on it.