Who said "Groot knows the forest's secrets"?

This quote is attributed to Groot.

Groot knows the forest's secrets - Groot

"Groot knows the forest's secrets"

Groot Nature

"I am Groot."

"We are Groot."

"I am Groot."

"Groot, groot, groot."

"Nature teaches us about beauty."

"Nature teaches us patience and wisdom"

"Sometimes it snows in April."

"Every town has a soul, and Twin Peaks has a troubled one."