The East Indian Gazetteer, p. 382
Walter Hamilton (M.R.A.S.)
Those who extract essences have several flower gardens at Patna and Bar. At the former two or three persons have rose-gardens, containing from one-fifth to one-third of an acre. The rose which is cultivated in these gardens is said to have originally come from Bussorah, and at Patna is called by that name; but in Bengal it is called the Patna rose. It is propagated by cuttings in the rainy season, and flowers from the middle of February to the middle of May, and during the dry season must be watered. The flowers, which are rather smaller than those of Europe, sell to the distilleries at from 1,000 to 4,000 per rupee, and are allowed to expand fully before they are sold.