Quick Answer
The Hidden Life of Trees is Peter Wohlleben's 2015 account of forests as communicating communities, built on real mycorrhizal science and narrated in the language of families and friendship. The underlying findings are remarkable. The narration goes past what they support.
Key Takeaways
- The biology is real: mycorrhizal networks connect roots, resource transfer happens, and damaged trees emit chemical signals that neighbours respond to. None of that is in dispute.
- The framing is contested: more than 4,500 German forest scientists signed a petition about anthropomorphism, and a review in the Bulletin of the Ecological Society of America found claims sourced to corporate websites rather than research.
- The move to watch is the register shift: Wohlleben slides from testable statements about chemistry to untestable statements about feeling without marking the change.
- Goethe would have objected: his method requires suspending your concepts so the phenomenon can speak. Importing human family categories is the error it exists to prevent.
- Rudolf Steiner connection: the Goethean tradition offers a disciplined way to approach nature as living without projecting onto it, which is precisely the discipline this book lacks and its readers most need.
🕑 15 min read
What the Book Claims
Peter Wohlleben spent decades in forestry, first for the German state administration and then managing a municipal forest at Hümmel, where he moved the operation away from industrial methods. The Hidden Life of Trees came out in 2015 and sold in numbers no forestry book has any business selling.
His argument is that a forest is a community rather than a collection of competitors. Trees, in his account, communicate with each other, share food, support their own offspring, keep injured neighbours alive, and maintain relationships that persist over decades. The mechanism he returns to is the network of mycorrhizal fungi that links root systems underground, which he and others call the wood wide web.
The book is warm, readable and full of first hand observation from a man who has genuinely spent his working life among the trees he is describing. That last point matters and should not be lost in the argument that follows.
Why this book matters to spiritual readers
It arrived as apparent scientific confirmation of something many people already believed: that the natural world is animate, relational and aware in ways the modern account denies. That is precisely why it deserves careful reading rather than grateful acceptance. A book that tells you what you already hoped is the one you are least equipped to assess, and the cost of being wrong about it is higher than the cost of being wrong about a book you disagree with.
What Is Actually Established
Take the disputed framing away and what remains is still extraordinary.
Mycorrhizal fungi form genuine physical connections between the root systems of different trees, including trees of different species. This is well documented and not controversial. Through those connections, carbon and nutrients move between plants, which has been measured. Suzanne Simard at the University of British Columbia did much of the foundational work on this, and her research is the load-bearing science under Wohlleben's case. She wrote an appreciative afterword to the English edition.
Separately, trees release volatile chemical compounds when damaged, and neighbouring trees exposed to those compounds alter their own chemistry in response, typically increasing defensive substances. This is also documented and also not controversial.
So: organisms with no nervous system, no brain and no capacity for intention influence each other's physiology across distance, through the air and through a fungal intermediary that belongs to neither of them. That is a genuinely strange set of facts and it does not need improving.
Where He Goes Past It
The scientific objection to the book is specific and it is not a complaint about tone.
Sharon Kingsland reviewed it for the Bulletin of the Ecological Society of America under the title Facts or Fairy Tales? Her finding was that Wohlleben repeatedly uses the scientific literature as a springboard toward conclusions the literature does not reach, and that some claims are supported by citations to corporate websites and seminar material rather than peer reviewed research. That is a sourcing problem rather than a stylistic one.
More than 4,500 German forest scientists signed a petition expressing concern about anthropomorphism in popular writing about trees. That is not a handful of irritated specialists. It is a professional community registering that a popular account had drifted far enough from the evidence to cause them a problem.
The strong version of the wood wide web has also weakened rather than strengthened since 2015. The networks exist; how extensive they are in real forests, how much material actually moves through them, and whether the movement is in any sense directed are all live questions with less settled answers than the book implies.
What this does and does not mean
None of the above means trees are inert or that forests are simple. It means one popular book overstated a real and interesting body of work. Those are very different claims, and conflating them is how people end up either dismissing forest ecology entirely or defending every sentence Wohlleben wrote. Neither position survives contact with the actual literature.
The Move to Watch For
Read the book with one thing in mind and its structure becomes visible.
Wohlleben alternates between two kinds of statement. The first kind is testable: this species releases this compound, this measurement showed carbon moving in this direction, these root systems are connected. The second kind is interior: the tree is anxious, the mother is caring for her children, the old one is being kept alive by friends.
He moves between them without signalling the change, and the first kind lends its credibility to the second. A reader finishes a paragraph that began with measured chemistry and ends with maternal devotion, and carries away the impression that both were established the same way.
This is the whole of the scientific objection, stated plainly. Not that the emotional language is unpleasant, but that it is doing epistemic work it has not earned. Once you notice the seam you can read the book profitably, because you can see which sentences are reports and which are interpretations.
What Goethe Actually Required
Here is where a spiritual readership usually assumes the book has an ally, and does not.
Goethe's approach to nature, developed in his botanical work and later formalised by Rudolf Steiner, is often summarised as seeing nature poetically or participating rather than dissecting. That summary has produced a great deal of confusion, because Goethe's actual method is more demanding than ordinary science rather than more relaxed.
The discipline requires you to hold a phenomenon in sustained attention while deliberately suspending the concepts you already have about it. You do not decide what a plant is doing. You watch it through its transformations until the pattern that organises those transformations becomes apparent on its own terms. Goethe worked this way with plants for decades and produced a morphology out of it. The entire point of the exercise is to prevent your existing categories from arriving first and dressing themselves up as observation.
Wohlleben does the opposite. He arrives with the richest and most familiar category set available, human family life, and applies it to forest processes. Mothers, children, friendship, nursing the sick. Those concepts are not emerging from the trees. They are being brought to the trees from a domain where they were formed, which is exactly the operation Goethean method is constructed to block.
The distinction worth holding
There is a real difference between approaching the living world as animate and projecting your own social forms onto it, and the difference is discipline rather than belief. Both look like reverence from outside. One of them requires you to be changed by what you observe, and the other requires the observed thing to be changed into something you already understand. In our reading, the Goethean tradition offers spiritual readers what this book cannot: a way of taking nature seriously as living that does not depend on making it a version of us. That is harder and considerably more interesting, and it is the reason we would send a reader who loved this book to Goethe's plant work next rather than to a sequel.
The method itself is covered in our article on Goethean science and Steiner's approach to observing nature, and its application to colour in Goethe's colour theory.
How to Read It Well
The book is worth your time. It needs a particular kind of attention.
Practice: mark the seam
Read one chapter with a pencil. Put a line beside every sentence that states something measurable, and a circle beside every sentence that attributes an inner state. Do not judge either category, just separate them. By the end of the chapter you will have a clear picture of the book's actual ratio, and the exercise transfers to everything else you read about nature, consciousness and animal minds. Most readers are surprised by how often the two are interleaved within a single paragraph.
Practice: the tree that is not a person
Spend twenty minutes with a single tree, and each time you catch yourself narrating it in human terms, set the description down and return to what is actually visible. The bark, the angle of the branches, the way the light moves, what grows at the base, what has damaged it. This is harder than it sounds and the difficulty is the point. Notice what you have to give up to stay with the thing itself, and notice what appears once you have stopped supplying the story.
That second exercise is the entry point to the wider practice of attention described in forest bathing, and it pairs with the research surveyed in plant consciousness, which handles the same evidence with more caution than Wohlleben does.
Why the Distinction Is Not Pedantry
A reasonable objection at this point: if the book gets people to love forests, does the precision matter? Two reasons it does.
The first is that overstatement has a shelf life. Claims presented as established science and later walked back do not leave the audience where they started. They leave it more sceptical than before, because people remember being told something confidently that turned out to be shakier than advertised. The strong version of the wood wide web is being revised right now, and every reader who took the book as a science briefing will experience that revision as having been misled. That damage falls on forest ecology generally, not on Wohlleben.
The second reason is closer to home. Spiritual and ecological writing has a standing credibility problem, and it is not primarily caused by the ideas being strange. It is caused by the habit of reaching for scientific authority when convenient and dropping it when inconvenient. A book that cites peer reviewed research for the parts that suit it and a seminar website for the parts that do not is modelling exactly the behaviour that gets an entire field dismissed.
The stronger position is the more careful one
Anyone who believes the natural world is more alive and more interconnected than the mechanical account allows has an interest in that case being made carefully, because a carelessly made case is worse than none. The findings here are genuinely difficult for a purely mechanical picture: organisms without nervous systems coordinating through intermediaries that belong to neither of them. That is strange enough to be worth defending properly, and it can only be defended properly by people who did not overstate it first.
The Argument Underneath
There is a second argument in this book that Wohlleben rarely states directly.
Industrial forestry treats trees as interchangeable units of timber, harvested on a schedule, planted in monocultures, valued by volume. If a forest is a community of interdependent organisms with long relationships, that practice is not merely inefficient but a kind of vandalism. The book's framing does real political work, and reviewers across the spectrum have noticed it.
Taking that argument seriously does not require accepting the anthropomorphism. The case against industrial monoculture stands on soil health, disease resistance, biodiversity and long term yield, none of which need trees to have feelings. But it does raise a question a careful reader should hold: when a book's science and its politics point the same direction, the science deserves a second look, the politics may well be right, and motivated selection stays invisible from inside either way.
Who Should Read It
Read it if you want to walk differently in woodland. It succeeds at that better than any recent book, and the change in attention is worth having whatever you conclude about the mechanisms.
Read it if you are willing to check things. The book is a fine starting point and a poor stopping point, and the interesting work begins when you follow a claim back to what it rests on.
Be careful with it if you are inclined to cite it. It circulates as settled science in a great many spiritual and environmental discussions, and using it that way will eventually put you in front of someone who has read Kingsland.
Our position: a genuinely valuable book carrying a real risk. The forest Wohlleben describes is astonishing, and the actual forest, the one with fungal networks and chemical signalling and no intentions anywhere, is astonishing too, and more durable. Take the wonder and check the sentences.
Readers following this thread should also see Rachel Carson's Silent Spring, which demonstrates what happens when reverence for the living world is carried by evidence that holds, and nature spirits and elementals for the older tradition of treating the natural world as populated, held as tradition rather than smuggled in as biology. The wider question of the earth as a living system is covered in Gaia and earth consciousness.
Worth reading, worth checking.
Affiliate disclosure: Thalira earns a small commission on purchases made through the link above, at no additional cost to you. We recommend books we have read and think are worth your time, and we say plainly when we think parts of them are weak.
Frequently Asked Questions
What is The Hidden Life of Trees about?
Peter Wohlleben's 2015 book, written from decades managing a forest in Germany, arguing that trees communicate, share resources, support their offspring and function as communities rather than as individuals competing for light. The mechanism he leans on most is the network of mycorrhizal fungi linking root systems, popularly called the wood wide web.
Is the wood wide web real?
The underlying biology is real and the popular version is contested. Mycorrhizal fungi genuinely connect tree roots, resource transfer between trees through fungal networks has been documented, and trees do release chemical signals that other trees respond to. What is disputed is how extensive, how directed and how significant these networks are in real forests, and doubts about the strong version have grown rather than shrunk since the book appeared.
Do scientists criticise The Hidden Life of Trees?
Substantially. More than 4,500 German forest scientists signed a petition raising concern about anthropomorphism in popular writing about trees. Sharon Kingsland's review in the Bulletin of the Ecological Society of America, titled Facts or Fairy Tales, found that Wohlleben repeatedly uses real literature as a springboard to conclusions the literature does not support, and that some claims are sourced to corporate websites and seminars rather than peer reviewed work.
Who is Suzanne Simard and what did she actually find?
A forest ecologist at the University of British Columbia whose research on carbon transfer between trees via mycorrhizal networks underpins much of Wohlleben's case. She wrote an appreciative afterword to the English edition. Her published work documents that transfer occurs; the more expansive claims about mother trees deliberately nurturing kin are where her interpretation, and Wohlleben's amplification of it, become contested among ecologists.
Is it wrong to describe trees as having feelings?
It depends on whether the description is doing observational work or emotional work. Saying a tree responds to damage by altering its chemistry is a claim you can test. Saying a tree is frightened imports an inner state nobody has evidence for and quietly changes what the reader thinks has been established. Wohlleben moves between the two registers without marking the transition, which is the substance of the scientific objection.
Would Goethe have approved of this book?
Probably not, which surprises people who assume Goethean science means seeing nature poetically. Goethe's method requires suspending your existing concepts and staying with the phenomenon until its own order becomes visible. Wohlleben does the reverse: he brings human social categories, mothers, friendship, nursing the sick, and applies them to forest processes. That is importing a concept rather than letting one emerge, and it is the specific error the method was built to prevent.
Should I still read The Hidden Life of Trees?
Yes, with the reading calibrated. It is a genuinely enjoyable book by a man who has spent decades in a forest paying attention, and it will change how you walk through woodland. Read it as an experienced forester's interpretation rather than as a science briefing, keep the questions about sourcing in mind, and follow up the claims that matter to you.
What is Wohlleben's background?
He trained in forestry and worked for the state forestry administration in Germany before taking over management of a municipal forest in Hümmel, where he moved the operation away from industrial methods. He is a practitioner rather than a research scientist, which explains both the book's strength, sustained first hand observation, and its weakness, an uneven relationship with the published literature.
Does the book have a political argument?
An implicit one. By presenting the forest as a cooperative community rather than a stand of competing individuals, Wohlleben undercuts the logic of industrial forestry, which treats trees as interchangeable units of timber. Reviewers on both sides have noticed this. The argument is worth taking seriously and it is also a reason to check whether the science is being selected to fit it.
What should I read alongside it?
Suzanne Simard's own writing for the primary research rather than the retelling. Sharon Kingsland's review in the Bulletin of the Ecological Society of America for the ecologist's objection stated clearly. Goethe's Metamorphosis of Plants for what disciplined participatory observation of plants actually looks like when the observer is not importing categories.
How do trees actually communicate?
Through chemistry and through fungal connections, neither of which requires intention. Damaged trees release volatile compounds into the air, and nearby trees exposed to those compounds change their own chemical defences. Root systems joined by mycorrhizal fungi can exchange carbon, nutrients and signalling molecules. Both are well documented. The dispute is entirely about what to call it, not about whether it happens.
Does criticising the book mean forests are not remarkable?
No, and this is the important point. Every disputed claim in the book sits on top of established findings that are extraordinary on their own terms: chemical signalling between organisms with no nervous system, resource sharing across species through fungal intermediaries, coordination without any coordinator. The forest does not need to be a family to be astonishing, and insisting that it is a family makes the real findings harder to defend.
Stay with the thing itself
The forest is stranger than the story told about it, and the story is only there because staying with strangeness is difficult. Go and stand with one tree for twenty minutes without narrating it. Whatever is left after the story runs out is the part worth having.
Sources & References
- Wohlleben, P. (2015). The Hidden Life of Trees: What They Feel, How They Communicate. Greystone Books.
- Kingsland, S. (2018). Facts or Fairy Tales? Peter Wohlleben and the Hidden Life of Trees. Bulletin of the Ecological Society of America, 99(4).
- Simard, S. Afterword to the English edition of The Hidden Life of Trees, and published research on mycorrhizal carbon transfer, University of British Columbia.
- Goethe, J. W. von. (1790). The Metamorphosis of Plants.
- Steiner, R. Goethean Science (GA 1), introductions to Goethe's scientific writings. Rudolf Steiner Press.
- Canadian Science Publishing. The Hidden Life of Trees, by Peter Wohlleben. blog.cdnsciencepub.com.
- Law and Liberty. The Hidden Anti-Capitalism of The Hidden Life of Trees. lawliberty.org.
- Carson, R. (1962). Silent Spring. Houghton Mifflin.