Why do plants flower at different times of the year?
Flowers appear at the times that are most suited to the production of seed for the continuation of the species. Before seed can develop, the flower must be pollinated. This means that the dust-like pollen produced by the stamen of the flower must be transferred to the stigma of the ovary. Pollination may be brought about by several means. Most plants are pollinated by insects and therefore flower at a time when the insects are active. Pollination by birds is widespread throughout the tropics. Wind-pollinated plants include all grasses, rushes, forest trees etc.
