Converting biomes

An interesting fact about Minecraft has lead me to this Idea. There have been similar ideas posted about this topic, but I think what I have to present is diversified enough to be considered its own idea. This all started when I had learned that Cherry Groves spawn where Meadows would usually spawn. As I was playing on a server with a friend, we had come across a very small Cherry Grove surrounded with the Meadow biome, so as a project we landscaped the area and filled the entire Meadows with cherry trees and pink petals. The only problem is that in F3 it still shows as a meadow biome, making the whole ordeal seem very pointless. I think there should be a way to change similar biomes into other similar biomes, ( ex- Meadow to Cherry Grove, Birch forest to Oak, Oak to Dark Oak ect. ), allowing the grass to change to its' respective color in a certain radius once a certain amount of trees/plants from that biome have been planted.