Start with high-confidence all about trees books, then narrow by subgenre or adjacent topics.
How a Seed Grows
Helene J. Jordan
The Shaman's Apprentice
Mark J. Plotkin
The Seasons of Arnold's Apple Tree
Gail Gibbons
Where Is the Amazon?
Sarah Fabiny
Hello, World! How Do Apples Grow?
Jill McDonald
Baby 101: Botany for Babies
Jonathan Litton
The Secret World of Plants
Ben Hoare
Botanicum
Kathy Willis
Poetrees
Douglas Florian
Little Observers: Go Camping
Clare Beaton
Rainforests (national Geographic Kids Readers, Level 2)
Andrea Silen
Because of an Acorn
Lola M. Schaefer, Adam Schaefer
The Magic and Mystery of Trees
Jen Green
Look What I Found in the Woods
Moira Butterfield
Arboretum
Tony Kirkham
Julia Rothman's Nature Anatomy Activity Book
Julia Rothman
We Can Hear Without Ears
Lisa Westberg Peters
Under the Canopy
Iris Volant
The Peace Tree From Hiroshima
Sandra Moore
