Baby C's Mom explains how they're using play to learn about trees.  While researching ETK (Early Transitional Kindergarten aka Public Preschool) options, Baby C's Mom gets inspired to talk to Baby C about trees.  She starts by learning songs.

These are the websites she mentions:

https://rachelmcclary.com/

https://rachelmcclary.com/2021/03/08/preschool-songs-about-trees/

https://www.youtube.com/watch?v=FJqy967xs1c