Why do flower seeds take so much longer to germinate than vegetable seeds ? And they are so little !?

Many flower seeds are designed to travel through a bird's intestines first, and/or pass through a very cold winter spell. See why size matters?

Most of the food seeds we currently use are hybrids, the results of dozens of years of fooling with. One desirable trait is fast germination.

Also most beans can be dried, then boosted with things like innoculants to germinate faster.