Name that book about snow, trees, and a woman

Hello! Please help me name a book I read as a high school student.

Themes: young girl/woman, snow, winter, trees, talking to the trees, magic, love story, tragic (not a thriller)

Book publishing date: Older than 10 years

Book location: high school library

Writhing style: beautiful, but difficult for young me. Reminds me of Patricia A McKillip

Cover: snow, trees, woman

There's Eowyn Ivey's The Snow Child, but that's from 2012, meaning the timing is really borderline.

Cover description made me think of The Winter Oak by James A. Hetley, but I'm not sure it totally matches the other clues.

This *is* by Patricia McKillip: Winter Rose?