Here's why:

* Flowers are the reproductive organs of plants. They contain the structures necessary for sexual reproduction, which leads to seed production.

* Inside the flower, the ovary contains ovules. These ovules are the precursors to seeds.

* Pollen, produced by the male part of the flower (the stamen), fertilizes the ovules. This fertilization triggers the ovule to develop into a seed.

So, while the seed itself is the result of a complex process, it all starts within the flower!