Gibberellins is a plant hormone produced mostly in developing seeds. Some of the major functions of gibberellins is to start the development of pollen, stem elongation, growing of fruit, and seed development. In the picture there is a bag of grapes; grapes are one of the plants that produces gibberellins. Gibberellins are produced in the fruit production and growth of grapes. Gibberellin hormones allows each grape to grow larger and for the elongation of the internodes.