Plant Intelligence

For thousands of years, Man considered himself the only sentient being in the universe, the only one capable of higher thought, understanding, and language and communication.

We now know that isn’t true. Higher primates, such as gorillas and chimps, are certainly capable of learning not only their own forms of communication, but American Sign Language as well. Dogs, it turns out, are capable of understanding human language at the level of a three year old human child, with some breeds (like German Shepherds) able to differentiate up to a thousand different words. We know that octopi can perform complex tasks (of their own planning, nonetheless), recognize people, and have a functional IQ of about 40. Dolphins and whales have complex languages and not only communicate, but show empathy.

Hence, many people choose not to eat animals, and dine only on plants.

But what about plants? What about their feelings?

Plants? What does a plant know? Corn has ears, but that doesn’t mean it’s listening.

Turns out, plants know more than you think. Plants have been caught communicating in numerous ways, understand when danger is near, and sympathize with other plants.

Yes, really.

This communication is known as phytosemiotics. One way is through chemical signals. A wounded plant will give off a volatile chemical compound (something you can smell) that other plants can sense. The receiving plant can then roll up its leaves or lean away. That wonderful fresh-cut grass smell we love in the summer? Yeah, that’s a hundred thousand blades of grass screaming in agony and warning other plants to beware that something is damaging them. Plants also communicate through ultrasonics – noises above our hearing range but which can be detected and recorded on audio equipment (ultrasonic vibration of 20–105 kHz). Some of this may be due to tiny air bubbles being released due to chemicals triggered during stress. Trees, it turns out, communicate under the soil as well, using certain types of fungi in the dirt to communicate through their roots. Are they discussing algebra? No. But they can tell each other about dangers, or fresh rain, or the pain of bark beetles, and other plants can ‘arm’ themselves accordingly. Just the sound of insects chewing can cause plants to release chemicals that deter insects (caffeine, by the way, exists in plants as a natural insect repellent).

Perhaps the Druids were on to something, thanking plants for sacrificing their leaves.

If that’s not weird enough, plants – even those without ears – apparently respond to music. Sure, houseplant lovers will tell you they’ve always known this, but numerous studies have turned up actual results. As early as 1962, studies showed that plants exposed to classical music had a 20% growth increase and a 72% increase in biomass over controls. Violins gave the best result. This was repeated by a Canadian researcher, with 66% increase in wheat yields using Bach’s violin sonatas. Duckweed, a water plant, exposed to Bandri’s Purple Butterfly, five hours a day for seven days at 60-70 decibels, showed a 10% increase in leaf growth and a slightly higher protein content compared to silent plants. Roses love violin music. Heavy metal tends to induce stress. Devendra Varol of the Institute of Integrated Study in India found that plants can not only distinguish between genres of music, but also nature sounds and traffic noises.

Oh, those poor weeds on the highway!

And while you laugh and scoff, know that in 2004 the TV show MythBusters attempted similar experiments in seven greenhouses. In their experience, Death Metal produced the best growth, second was classical, and third was positive spoken words. The silent greenhouse had the worst growth.

How can this possibly be?

The best theory is that the vibration of music may aid plants in transporting their nutrients more efficiently, shaking things through faster. 

Next time you pull a carrot, remember those mandrakes in Harry Potter shrieking piteously when pulled from the pot.

In the meantime, check out these books on the wisdom of plants, and be kind to your root-footed friends!

Finding the Mother Tree by Suzanne Simard

The Serviceberry by Robin Wall Kimmerer

Listen to the Language of Trees by Tera Kelley

Aromatherapy Garden by Kathi Keville

Secret Wisdom of Nature by Peter Wohlleben

Flora by Helen Fewster

The Light Eaters by Zoe Schlanger

I Heard There Was a Secret Chord: Music as Medicine by Daniel Levitin

Healing at the Speed of Sound by Don Campbell

How Shostakovich changed my mind by Stephen Johnson

Violin Music:

Shatter Me by Lindsey Stirling

David Garrett by David Garret

Vivaldi for Dummies

The Ultimate Most Relaxing Mozart in the Universe

10 Recent Favorites From Our Staff

What was the best book you read in 2022? I recently asked staff members this question and have compiled their answers here. Interestingly, there were no duplications, everyone had a different favorite. Some books were published in 2022, some were many years older, some were fiction, some were nonfiction. Without further ado, here’s a selection of 10 recent favorites from our library staff.

Lessons in Chemistry by Bonnie Garmus. In the early 1960s, chemist and single mother Elizabeth Zott, the reluctant star of America’s most beloved cooking show due to her revolutionary skills in the kitchen, uses this opportunity to dare women to change the status quo.

Neopolitan series by Elena Ferrante. Beginning in the 1950s in a poor but vibrant neighborhood on the outskirts of Naples, Ferrante’s four-volume story spans almost sixty years, as its protagonists, Lila and Elena, become women, wives, mothers, and leaders, all the while maintaining a complex and at times conflictual friendship.

Boneshaker by Cherie Priest. Commissioned to build a machine that will promote gold-rush land-breaking efforts between Civil War-era Seattle and Alaska, inventor Leviticus Blue inadvertently triggers the release of a deadly gas that transforms people into the living dead, a situation that prompts his teenage son to restore the family reputation years later.

Summer Sons by Lee Mandelo. When his best friend dies of an apparent suicide, Andrew uncovers lies and secrets left behind by the person he trusted most, discovering a family history soaked in blood and death.

What We Wish Were True by Tallu Schuyler Quinn. A non-profit leader, humanitarian and minister, after being diagnosed with an aggressive form of terminal brain cancer, pens profound essays on what it means to live with a terminal diagnoses and still find meaning and how to discover beauty in life’s ordinary moments.

Foundryside by Robert Jackson Bennett. A thief in a city controlled by industrialized magic joins forces with a rare honest police officer to stop an ancient evil ritual that endangers thousands of lives.

Piranesi by Susanna Clarke. Living in a labyrinthine house of endless corridors, flooded staircases and thousands of statues, Piranesi assists the dreamlike dwelling’s only other resident throughout a mysterious research project before evidence emerges of an astonishing alternate world

The Book Woman of Troublesome Creek by Kim Michele Richardson. During Kentucky’s Great Depression, Pack Horse Library Project member Cussy Mary Carter, a young outcast, delivers books to the hillfolk of Troublesome Creek, hoping to spread learning in these desperate times, but not everyone is keen on her or the Library Project.

Tomorrow and Tomorrow and Tomorrow by Gabrielle Zevin. A modern love story about two childhood friends, Sam, raised by an actress mother in LA’s Koreatown, and Sadie, from the wealthy Jewish enclave of Beverly Hills, who reunite as adults to create video games, finding an intimacy in digital worlds that eludes them in their real lives.

Finding the Mother Tree by Suzanne Simard. The world’s leading forest ecologist, in her first book, draws us into the intimate world of trees where she brilliantly illuminates the fascinating and vital truth — that trees are a complex, interdependent circle of life.

Twisting Tornadoes

Our first exposure to tornadoes is often watching The Wizard of Oz as a child, though no one but Dorothy has ever reported being transported to a magical land beyond the rainbow. I was 9 when I read the Reader’s Digest account of the April 3-4, 1974 Night of 100 tornadoes, a horrific Super Outbreak of 148 confirmed tornadoes in 24 hours – more than 30 F4/F5’s – which devastated the town of Xenia, Ohio, among others. That kind of thing leaves an impression, even in a magazine.

April is in the middle of tornado “season,” which runs from March to June, when the biggest outbreaks of tornadoes are likely to occur. The United States has more tornadoes, and more violent tornadoes, than any other place in the world – killing an average of eighty people a year, despite our best efforts at early warning. Can they occur in other months? Of course they can. It all depends on the weather, and the weather, as we are aware, has been kind of wacky lately, from extreme drought in California to paralyzing snow and ice in Texas.

Why the US?  When we talk of “tornado alley,” we usually mean a massive stretch of flat land in the center of the country, from Colorado to Pennsylvania, and from Texas to the Canadian border. This is where the majority of tornadoes are born. Can they occur anywhere? Of course they can – CT has had memorable destructive tornadoes (such as the EF1 that wiped out Sleeping Giant in 2018) as well as Florida, Nevada, and Portland, Oregon. Pennsylvania holds the record for the only F-5 tornado east of the Appalachians – that’s winds of 300 mph.

Why do tornadoes form? Thunderstorms form when warm, moist air (such as from the Gulf) collides with cool dry air (such as comes down from Canada). When the two fronts meet, warm air rises up through the cold, creating storms. If the winds start to rotate in the process, a tornado is formed. Spring is when the warm air starts coming north from the Gulf of Mexico, colliding with the cold Canadian fronts, setting up a highway for storms until summer’s heat chases the cold air back north.

In modern times, with doppler radar, we know when a storm is likely to be powerful enough to cause a tornado (the Wallingford tornado of 1898 killed 34 people, but they had no warning system). If you’re faced with a severe storm, or a tornado warning, if the sky gets that sickly green, get to shelter. Go to a basement if you can, away from windows, under a staircase is a bonus. If you have no basement, go to a place away from windows – a large closet, or a bathroom – many people have survived in bathtubs. If you can, take shelter under a table or something sturdy. Cover yourself with a blanket, to avoid debris or flying glass. If you’re in a car, stop and get to shelter as fast as possible – don’t try to outrun a tornado; you can’t.  And no, hiding under a bridge isn’t safe – those 200 mph winds will blow you right out from under there. Please don’t leave your animals chained outside. They’re scared, too.

Whether you’re an armchair weather-watcher, or like reading about disasters, here’s a number of tornado-related stories and films you might enjoy – with one eye out the window (No, there has never been an actual Sharknado. Frogs and fish, but no sharks. Sorry).

Books:

Videos: