Posted: 10/07/2017 at 18:58
yes it would make a difference Firefly but if you read much on this forum you find many people are busy using insecticides to keep their plants pest free. They want the flower display.
If you get species plants, including those you mention, they will produce pollen, Pollen is the male part of plant reproductive process. Species would have died out if they didn't have any.
Plants have been hybridised and selected to produce bigger, 'better' flowers. They flower longer if they don''t make seed, double flowers last longer than single ones