SOLVED. Children's Fiction- Book in the vein of Amelia Bedelia but for older audiences. [s]

[Clark]

Premise: The book involves preparing for a mayday celebration in a small town and one of the main characters is an adult woman who always takes things literally--for example pruning the trees (puts prunes on trees). I also remember the book following the schoolchildren's lives, for example at one point they boycott something completely mundane (grilled cheese sandwiches or something). The book is multi-media, incorporating lots of drawings as well as fictional letters and newspaper clippings.
Year: 2008-2016
Reading age: Lower-school, middle-school
Cover: It had a large hand-drawn tree on the front cover.

[Tab]

Regarding the Trees: A Splintered Saga Rooted in Secrets

It sounds like a really fun book.
It is part of a series called, "Regarding the..."
https://www.goodreads.com/series/9259...

[Clark]

Tab wrote: "Regarding the Trees: A Splintered Saga Rooted in Secrets

It sounds like a really fun book.
It is part of a s..."

That's it! Solved! Thank you!