I don't have the Beautiful Town ordinance in play, but I do have a lot of flowers. It started with the obligatory rose garden that I've planted next to my house since CF, but suddenly a wild patch of pansies I let be turned into a gigantic field sitting in front of my station.
I'm in the middle of landscaping right now, and lemme tell you something. If you don't want to be even more overwhelmed, don't even look at bamboo. I chopped down all the trees on the north side of my town (except for those on a little peninsula where my campground is to give it a foresty feel) and replaced them with bamboo, and now there are new ones threatening to grow everywhere in the morning.
Putting down paths around gardens seems to help keep my flowers in check, though I constantly have to confiscate the flowers that my villagers plant.