New Plant Budding Mechanic! (I wrote right?)

[ALEXZANDER YT]

In our life plants multiply not bad - Why not to add this feature in game? Instead of waiting the world respawning plants taking long time why not to add plant budding mechanic? for example tress will drop seeds nearby them (spring and autumn) to spread them selves in constant (for example trees will have their own one seed they will drop after some time being in third stage before going back to 1 stage? so do grass, twigs and bushes will have same mechanic or maybe will regrow faster after one of the player burnt down lots of trees? + add option in world setting wich player could chosse wich kind of plant will appear in world generation will regrow or will not grow ? If i made mistake somewhere or wrote something nor correctly - wright about it! 

PS. Would be logic if Trees will stay in 3rd stage after reaching it