When the guide gets it wrong

Rosa setigera is a native climbing rose whose simple flowers allow bees to easily collect pollen.
Dee Salomon
Rosa setigera is a native climbing rose whose simple flowers allow bees to easily collect pollen.
After moving to West Cornwall in 2012, we were given a thoughtful housewarming gift: the 1997 edition of “Dirr’s Hardy Trees and Shrubs.” We were told the encyclopedic volume was the definitive gardener’s reference guide — a fact I already knew, having purchased one several months earlier at the recommendation of a gardener I admire.
At the time, we were in the thick of winter invasive removal, and I enjoyed reading and dreaming about the trees and shrubs I could plant to fill in the bare spots where the bittersweet, barberry, multiflora rose and other invasive plants had been.Years later, I purchased the 2011 edition, updated and inclusive of plants for warm climates.
On the cover of the new edition, a quote from Adrian Higgins of The Washington Post boasts, “Michael Dirr is the oracle of ornamental horticulture. I trust his judgements implicitly.”I heartily disagree with Mr. Higgins:I blame this book — and my poor use of it — for some of my worst tree and shrub choices.
I realize some readers might find this declaration inflammatory. The book still occupies a place of high regard among experienced and novice gardeners alike, so please allow me to explain.
In addition to giving the reader his opinion on the aesthetic worthiness of the woody plants included in the book, Mr. Dirr makes good on the book’s title with a review of each species’ hardiness. What makes a tree hardy?It thrives in its intended site, resisting disease with leaves and bark not readily eaten by insects and other critters.
Non-native plants make up the majority of the recommended hardy plants in the book.And here is why:Native trees and shrubs are, by evolution’s design, food source and host to our native fauna — critters large and small. There is no substitute equal to the fauna’s co-evolved flora.A native caterpillar cannot eat a kousa dogwood leaf, as it has not evolved to digest it.Non-native plants seemingly have the advantage if the lens we look through values pristine, uneaten leaves.
In the days when there were sufficient thriving ecosystems to maintain local habitats, a non-native specimen tree here and there was just fine.But where we live in Northwest Connecticut, our woods, meadows, marshes and other natural areas have, for a couple of decades, been severely compromised by invasives that have almost entirely removed the food sources for native insects. It is up to us — now — to plant native plants to save the food chain.Without insects, not only will native animals die, but human food sources will also be at risk.
The security of our food pipeline seems a worthy exchange for some caterpillar-eaten leaves — and to be clear, we’re not talking about non-native infestations such as spongy moth, but rather native caterpillars, which are the singular food source for nesting birds.
My issue is that, in being a trusted source for plant selection, Dirr’s book should give equal — if not prioritized — space to information on ecological impact.For example, it would be good to know when selecting a tree, that a native oak provides food and other ecosystem services to more than 400 native animal species, while a native tulip poplar supports fewer than 30 — though that includes the Eastern tiger swallowtail. Including information on the birds and insects attracted to a given plant would enable reader to weigh these factors in choosing what to grow.But this information is not mentioned at all.
Dirr makes no mention of the role some of these plants have played in the degradation of our natural areas — an omission that is highly relevant, as many of the plants featured in his book are, in fact, invasive culprits. Plants like barberry, porcelain berry and tree of heaven are showcased for consideration alongside native plants without recognition of the devastating infestations they can manifest. Tree of Heaven is now responsible for hosting the spotted lanternfly, which is devastating crops.
Similarly Euonymous alatus (winged euonymous) and Actinidia arguta (hardy kiwi) — two highly invasive plants touted in the book — have been banned or are close to being banned for sale from nurseries in the state of Massachusetts. To his credit, Dirr does point out the invasive nature of Ligustrum sinense (Chinese privet), calling it “a terrible and devastating escapee that terrorizes floodplains, fencerows and even open fields, reducing native vegetation to rubble.” Yet Japanese honeysuckle gets an understated warning, with Dirr describing this massively invasive shrub as “bullying their way into understory and open areas.”
The latest edition of Dirr’s book devotes seven pages of copy and photos to various Berberis species, about which Dirr waxes poetic. He notes the addition of “30 new cultivars” in the latest revision and complains that “this species is under assault for its aggressive invasive nature.” He refers to Berberis thunbergii — Japanese barberry, the most invasive of them all — as “the species of major importance in garden commerce.” This plant has already been outlawed for sale in New York, Pennsylvania, New Hamphsire and Maine.A few weeks ago, a bill was passed in Connecticut recognizing the harm of a broad group of invasive plants. Under this new legislation, barberry will be phased out from sale or transport by October 2028.
In understating the invasive nature of many non-natives and de-prioritizing the importance of native species, Dirr’s widely used reference may be partly responsible for many a devastated woodland, forest, meadow and marsh in New England — if not across the U.S.Certainly, the evolution of species, and scientific knowledge about the environment, is changing faster than new editions of books can be printed. I can only hope that if a new edition of Mr. Dirr’s reference book is in the works that it will account for this criteria we now know to be vital in plant selection.
Which brings me back to that quote on the cover from The Washington Post and the larger issue it suggests:Should “ornamental horticulture” get a pass when it comes to ecological survival?I think we can agree — it should not.The consequences are simply too destructive.
Dee Salomon ‘ungardens’ in Litchfield County.
On Saturday, Sept. 6, from 12 to 5 p.m., Rock Steady Farm in Millerton opens its fields once again for the third annual Farm Fall Block Party, a vibrant, heart-forward gathering of queer and BIPOC farmers, neighbors, families, artists, and allies from across the Hudson Valley and beyond.
Co-hosted with Catalyst Collaborative Farm, The Watershed Center, WILDSEED Community Farm & Healing Village, and Seasoned Delicious Foods, this year’s party promises its biggest celebration yet. Part harvest festival, part community reunion, the gathering is a reflection of the region’s rich agricultural and cultural ecosystem.
Rooted in justice and joy, the event will feature over 25 local vendors and organizations, live performances, healing workshops, family-friendly activities (yes, there’s a bouncy castle), and abundant local food. And while the festivities are certainly reason enough to show up, organizers remind us the purpose runs deeper.
“This isn’t just a party. It’s a place to build the kind of relationships that keep our food system alive,” said Maggie Cheney, Rock Steady’s co-founder and worker-owner. “We’re creating space where farmers, growers, families, and community organizers can connect, celebrate, and support one another.”
Proceeds from the event support Rock Steady’s POLLINATE program for queer and trans BIPOC beginning farmers, as well as Catalyst Collaborative Farm’s food justice initiatives. With sliding-scale tickets from $5 to $250, the organizers aim to make the event accessible to all, including free entry for children under 12 and volunteer options for those who want to pitch in.
For those who’ve attended before, it’s a welcome return. For newcomers, it may just feel like coming home.
More info and tickets: rocksteadyfarm.com/farm-block-party
Waterlily (8”x12”) made by Marilyn Hock
It takes a lot of courage to share your art for the first time and Marilyn Hock is taking that leap with her debut exhibition at Sharon Town Hall on Sept. 12. A realist painter with a deep love for wildlife, florals, and landscapes, Hock has spent the past few years immersed in watercolor, teaching herself, failing forward, and returning again and again to the page. This 18-piece collection is a testament to courage, practice and a genuine love for the craft.
“I always start with the eyes,” said Hock of her animal portraits. “That’s where the soul lives.” This attentiveness runs through her work, each piece rendered with care, clarity, and a respect for the subtle variations of color and light in the natural world.
After painting in oils earlier in life, Hock returned to art when she retired from working as a paralegal with a goal: to learn watercolor. It wasn’t easy.
“Oils and watercolor are opposites,” she explained. “With oils, you build your darks first. In watercolor, if you do that, you’re in trouble.” She studied online, finding instructors whose approach clicked, and adapted to the delicacy of the medium.
“When I’m working, everything else falls away,” she said. “It doesn’t matter what’s going on in life. While I’m painting, time disappears.”
Her studio, formerly a home office, is now her sanctuary and the pieces in this exhibition are the result of three years of that devoted studio work. While this is her first full public show, Hock previously tested the waters at a small fundraiser at Noble Horizons, where one of her pieces sold. That experience — and the consistent encouragement from her family, especially her husband — pushed her to pursue a full exhibition. With gentle encouragement from her husband and family, Hock reached out to the Town Hall’s curator, Zelina Blagden. “My husband kept saying, ‘You’re as good as all those other people out there, why not show your work?’” And so, here it is.
All paintings in the show are for sale, though Hock admits a few are priced high — not because of their size or complexity — but because she’s not quite ready to let them go. “There are a couple I’ve priced high because I’m not sure I want to part with them. But we’ll see,” she laughed. “It would be nice to support the habit a little bit.”
As for aspiring artists or anyone hesitating to begin something creative, Hock’s advice is simple: “Go for it. If it fails, toss it in the basket and start over.”
The exhibit will be on view at Sharon Town Hall through Oct. 31 with an opening reception on Sept. 12 from 5:30 to 7:30 p.m. Light refreshments will be served.
Carissa Unite, general manager of Oblong Books in Millerton.
Carissa Unite of Millerton, began working at Oblong Books 16 years ago as a high schooler. She recently celebrated her eight-year anniversary as the general manager.
Unite’s journey at Oblong began even before she applied for her first position.An avid reader from a young age, she was a frequent customer at the store. During those years, Unite bonded with a former employee who encouraged her to apply for a position after connecting over their shared love of reading.
As a teenager, Unite enjoyed reading Ellen Hopkins, John Green and Ann Brashares. With the busyness of adulthood, she now favors the convenience of audio books. In the past year, however, she has made it a point to read more physical books.
With a preference for contemporary fiction, she raved about “Atmosphere” by Taylor Jenkins Reid. The story, set in the 1980s, follows two women who become astronauts at a time when women were not widely accepted in the field. A beautiful love story emerges between the two characters. Unite described the writing as sensational and commended Reid’s ability to tackle complex themes without them being muddied.
Unite has developed a deep appreciated for classic literature. Her two favorites are “Giovanni’s Room” by James Baldwin and “The Picture of Dorian Gray” by Oscar Wilde. She was amazed by the philosophical nature of both words and the way their dialogue challenged her perspective.
In an effort to read beyond her preferred genre, she recommends the following:
“Some Desperate Glory,” by Emily Tesh, “Midnight Rooms,” by Donyae Coles and “Clear” by Carys Davies.
For Unite, the beauty of reading lies in its power to develop perspective, empathy, and compassion. Through books, readers learn that everyone is fighting different battles and no two stories are the same. She encourages people to choose kindness because you never know what someone else is facing.
Above all, reading brings Unite peace. If offers transcendence to another world, a pause from outside noise, and for Unite, it is where she feels most at home.
For anyone hesitant to being reading, Unite suggests: just do it! Read 10 pages a day and find the book that speaks to you. Any Oblong staff member would be happy to offer recommendations.
Oblong is located at 26 Main St., in Millerton and 6422 Montgomery St. in Rhinebeck.