Nicotiana Alata or Tobacco Plant, Tobacco Flower , Jasmine Tobacco or Sweet Tobacco is a perennial but grown as hardy annual in colder climates. Nicotiana Alata flowers are fragrant specially at night time. It is moth pollinated and should be planted in well-drained soil in partial shade. It can be grown from seeds. It flowers in summer and fall and grows to about 24″ tall.