Nicotiana rustica is a annual growing to 1.5 m (5ft). It is hardy to zone 8 and is frost tender. It is in flower from Jul to September. The flowers are hermaphrodite (have both male and female organs).
Flower petal is green to brown yellow; leaves are simple (lobed or unlobed but not separated into leaflets) arranged alternatively: there is one leaf per node along the stem. Its leaves are wider and rounder than some of our other tobacco species, and the tubular, yellowish flowers are shorter.