The question:
It’s all about books, of course, but suddenly.
I watched Anime ten years ago, I only remember the passages. The main character, a young, naive girl, works in a hospital as a nurse during the war. She was originally from a wealthy family. And some association with roses (whether she loved them, or whether they grew in her house).
I've been looking for two years, but with such a description that the needle in the seed stack.

The answer:
"Candy-Candy" (anime of 1976, 114 series) There is on Zoomby > Kids > Anime
Help, please, bring to man is a very good series about human values.