well randy, YEC don't engage in science no? Therefore you wouldn't expect experiments from their side.
Also after the flood the soil would be so waterlogged very few species could actually germinate or grow. Not to mention that many hardwood tries require that their seeds be exposed to fire before they can germinate. Not really happening with the flood.
I don't even think it would be possible to reestablish pollinators. Bees require pollen to produce honey and 'jelly.' The plants that reseeded the world would have taken months to flower. How would the bees have survived such a significent length of time with no food source?
Plus I don't understand how species such as lady bugs could have survived when their primary food source requires a plant that couldn't reproduce in sufficent numbers in sufficent time.