The wild Nicotiana rustica used by North American Indians for thousands of years and it is still in use in native ceremonies. It is grown for smoking in some parts of Asia. More potent than cultivated tobaccos, with more nicotine content, it is a source of nicotine sulphate, an insecticide for the control of aphids, thrips, whiteflies and mites. Grows to 1.5 meters tall, greenish yellow flowers produced from July to September, plant out after last frosts 30-90cm apart. Annual 1m Ornamental flower. Nicotiana rustica