This post follows last week’s post: The Forest Has a Heart?
In 2016, Zlinszky (Zlinszky/Molnar/Barfod) and his team released another study demonstrating that birch trees go to sleep at night (now we know that all trees – at least all the trees that have been studied so far – do sleep at night).
Trees follow circadian cycles responding primarily to light and darkness on a daily cycle. The researchers believe the dropping of birch branches before dawn is caused by a decrease in the tree’s internal water pressure while the trees rest. With no photosynthesis at night to drive the conversion of sunlight into simple sugars, trees are conserving energy by relaxing branches that would otherwise be angled towards the sun. Trees increase their transpiration during the morning, decreasing it during the afternoon and into the night. There is a change in the diameter of the trunk or stem that produces a slow pulse. During the evening and the night tree water use is declining, while at the same time, the stem begins to expand again as it refills with water.
When trees drop their branches and leaves its because they’re sleeping. They enter their own type of circadian rhythm known as circadian leaf movement, following their own internal tree clock. Continue reading “Trees Sleep? by Sara Wright”

Scientist Diana Beresford Kroeger proved that the biochemistry of humans and that of plants and trees are the same – i.e. the hormones (including serotonin) that regulate human and plant life are identical. What this means practically is that trees possess all the elements they need to develop a mind and consciousness. If mind and awareness are possibilities/probabilities then my next question isn’t absurd: Do trees have a heartbeat?
Every morning I walk to the river in the velveteen hour between the vanishing blue night and the coming of the first scarlet, pink, lavender, purple or golden ribbons that stretch across the horizon. Sometimes clouds with heavy gray eyelids mute first light. Either way all my senses except that of sight are on high alert; a deep peace embraces me in the dark. My body knows the way. I murmur to the willows as I pass through the veil and under their bowed bridge. Their response is muted, a song beneath words.
I first discovered Rupert Sheldrake’s work by reading his first two books: “A New Science of Life” written in 1981 followed by “The Presence of the Past.” These two books changed my life because they validated my experiential reality and demonstrated that my personal experiences were located in a much larger context. I was not imagining things I felt or dreamed!
Scientist Susan Simard is a professor of forest ecology at the University in Vancouver, British Columbia, who has been studying the below-ground fungal networks that connect trees and facilitate underground inter-tree communication and interaction. Over a period of more than thirty years this field scientist and her students have learned how fungi networks move water, carbon and nutrients such as nitrogen between and among trees as well as across species. Her research has demonstrated that these complex, symbiotic networks in our forests — at the hub of which stand what she calls the “mother trees” — mimic our own neural and social networks. This groundbreaking work on symbiotic plant communication has far-reaching implications that include developing sustainable ways to ‘manage’ forests, and to improve tree and plant resistance to pathogens. Although much of Simard’s research occurs in forests, she has also studied the underground systems of grasslands, wetlands, tundra and alpine ecosystems.
When I walked into the space a bolt of
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