ichidan verb
be overgrown; grow too much
Describes plants, hair, or other living things that have grown beyond a desired or normal size. Often carries a nuance of neglect or lack of trimming.
庭の雑草が育ちすぎて手がつけられない。
The weeds in the garden have become overgrown and are unmanageable.
髪が育ちすぎたので、美容院
My hair has grown too long, so I have to go to the salon.