Trees dominate the world's oldest living organisms. Since the dawn of our species, they have been our silent companions, permeating our most enduring tales and never ceasing to inspire fantastical cosmogonies. Hermann Hesse called them "the most penetrating of preachers." A forgotten seventeenth-century English gardener wrote of how they "speak to the mind, and tell us many things, and teach us many good lessons."
But trees might be among our lushest metaphors and sense making frameworks for knowledge precisely because the richness of what they say is more than metaphorical - they speak a sophisticated silent language, communicating complex information via smell, taste, and electrical impulses. This fascinating secret world of signals is what German forester Peter Wohlleben explores in The Hidden Life of Trees: What They Feel, How They Communicate (public library).
Comment: A forest is much more than what you see: Trees talk to each other & recognize their offspring