I think that flowers should get a decrease from the server store. They are currently too expensive, and are hard to come by in the wild or from other players, and even then, it will likely not be a lot. Some people NEED lots of flowers, like i did when i was making a pathway in my town, and i needed decor. Im not sure what price they should be, but maybe 25-50 cents each.
bonemeal can get you flowers, the prices are that low because with a large amount of bonemeal you can get a lot of flowers.
Still, if you can get large amounts of flowers from bonemeal, (like dirt) then why would the price be so high?