noun
bloom of youth; prime of girlhood
Refers to the period when a young woman is at her most beautiful and vibrant, typically late teens to early twenties. Often used in literary or nostalgic contexts.
彼女は今が娘盛りだ。
She is now in the bloom of her youth.
娘盛りの写真を見ると、若い頃を思
Looking at photos from her prime of girlhood reminds me of her younger days.