The Quiet Pattern
A Historical Garden Path to DNA
“Adopt the pace of nature; her secret is patience.”
Ralph Waldo Emerson
Picture a flower beginning to open – not all at once, but slowly, with purpose. Behind that single bloom is a long line of choices: someone planted it, tended it, noticed what made it different. Over time, patterns emerged. Curiosity turned to practice, and practice to understanding. In this chapter, we follow that thread, the way people have looked closely at flowers, and what those flowers have shown us in return.
Thich Nhat Hanh used to say that a flower doesn’t strive to compete with the one next to it, it simply blooms. He said this gently, often with a smile and folded hands, his voice soft enough to get lost in wind. He believed that stillness and flowers belonged to the same order of things. In the quiet spaces of his Plum Village garden, he walked as though each step were a note in a longer song, mindful, deliberate, present. When war exiled him from Vietnam, it was the plants that stayed. He found peace not in resolution but in tending. The beans still needed stringing. The roses still opened. The miracle, he said, is not to walk on water, but to walk on the Earth.
Long before Thich Nhat Hanh taught us to breathe with the flowers, Hildegard of Bingen listened to them. The 12th-century abbess, mystic, and naturalist, moved through the damp German hills, gathering herbs and visions in equal measure. She spoke of viriditas, the greening power, the pulse of divine energy in all living things. To Hildegard, a flower was not just pretty or medicinal; it was a sermon in bloom. Her monasteries planted gardens not only for sustenance, but for sanctity. Every calendula, every rue, every fennel sprig was part of a spiritual alphabet, speaking health and holiness in the same breath.
Not all seekers of floral wisdom wore habits. Claude Monet, decades later, created his own cathedral in Giverny. His sanctuary wasn’t stone, it was lily pads and iris beds and shifting afternoon light. He planted and painted until his eyesight blurred, capturing time as it passed through petals. He woke early, brush in hand, watching how morning mist altered the palette of his garden. Where others saw ornament, Monet saw relationship, how light adored color, how water held memory. His late works weren’t still lifes, they were meditations. Paintings as petals. Gardens as prayers.
Even in the mountains of 12th-century China, Sun Bu’er, a Taoist nun and poet, saw in flowers the path to the eternal. She had once been wealthy, with children and reputation, but chose instead the hermit’s cave and the discipline of the Way. Her writings speak of plum blossoms in snow, of the jade-colored mind opening under moonlight. For her, the garden wasn’t a place, but a state. She burned her vanity and surrendered her beauty, believing real transformation came not in the mirror but in stillness. And in stillness, she bloomed.
On the other side of the world, and long before her time, indigenous women and tribal elders also bent close to flowers, not to paint them or philosophize, but to speak with them. In Hupa tradition, the Flower Dance marked a girl’s passage into womanhood, petals falling in rhythm with ancestral drums. Among many plains tribes of North America, the coneflower is medicine, its bloom a whisper from the spirit world. In ceremony, flowers are not symbols. They are participants, helpers, healers, kin. Sweetgrass braided into wreaths. Lavender burned in bundles. A floral language far older than ink.
Walk far enough through this garden of history and eventually, at the edge of faith and science, you’ll find a small man in a walled monastery garden in Moravia. Gregor Mendel. He didn’t call himself a scientist. He was a monk. He was quiet, meticulous, and prone to bouts of anxiety. The abbot sent him to study science in Vienna, but he failed his teaching exams. Back in the monastery, he turned inward, toward plants, pollination, and patterns. His garden was small. But his questions were big.
Why did some pea plants always produce tall offspring? Why did others split traits, skipping generations? What rules guided inheritance?
He grew over 28,000 pea plants. Year after year, he crossed them by hand, tracked their flowers and pods and heights, and wrote everything down in ledgers. What he discovered, though he wouldn’t live to see it recognized, were the basic principles of heredity. The foundation of what we now call genetics.
Mendel never used the word “gene.” He didn’t know about DNA, or chromosomes, or molecular biology. But he saw the outlines. He saw that traits passed from parent to offspring in measurable, predictable ways. He saw that some traits were hidden, only to emerge later. He saw, in peas, the beginning of pattern.
It’s strange, in a way. That the same quiet, contemplative life that led Thich Nhat Hanh to meditate on flowers as pathways to peace also led Gregor Mendel to uncover the mechanics of inheritance. Both were monks. Both loved gardens. One found stillness. The other, structure.
And here, for the gardener, the two come together.
Because when you hold a dahlia tuber in your hand, when you take a cutting, or save a seed, you are participating in both. The gentle reflection of one human’s path toward compassion. And the meticulous logic of another human’s search for biological truth. You are both witness and archivist. A tender of souls, and a keeper of codes.
DNA is not separate from the garden. It is the garden, buried in every cell, spiraling silently, waiting to be read by sun and soil and season.
And it, too, is not a thing. It is a process. A living script, unfolding through time.
Many Paths, One Crown
With dahlias, you’ve got options. You can divide tubers, take cuttings, collect seed, even multiply them through tissue culture. Each method carries the plant forward, but each tells a different story.
Saving the tuber is like making a photocopy. It’s clonal, genetically identical, more or less. The bloom, form, and growth habit will match the parent, though the plant will still respond to the environment in all kinds of subtle ways.
Most people assume the tuber is the plant. But a tuber’s job isn’t to grow, it’s to store. It holds the energy from the previous season – growth begins only in a specific part of the tuber: the crown.
A dahlia tuber is made up of three parts, the body, the neck, and the crown. The body is the swollen storage root, full of starch. The neck connects it to the crown, the part where the plant’s eyes form. Those eyes, tiny buds at the top of the neck, are the only place new growth can emerge. Without them, the tuber won’t sprout.
People often ask if a small tuber will still grow, or if one that looks a little shriveled is still good. And the answer is usually yes, as long as the crown is intact and there’s a visible eye or the potential for one to form. Size doesn’t matter nearly as much as that little spark of life. A firm, small tuber with an eye will outgrow a giant one with no growing point every time. Even a little dryness is normal after storage. What matters is whether it remembers how to grow.
Then there are cuttings, the simplest, cleanest way to carry a plant forward without digging. I propagate thousands each year, both for sale and for selection. Each one is genetically identical to the stock plant, but that doesn’t make it any less satisfying. There’s something deeply joyful about it, seeing a new plant stand on its own, knowing it’s going to carry a trait forward. Especially in early spring, when the trays start to fill in, it feels like momentum after months of dormancy. A good rooted cutting lifts the whole mood of the grow room.
I’ve also done grafting experiments, partly out of curiosity, partly as a nod to small-space gardening. I’ve grafted multiple dahlia varieties onto a single rootstock, just to see what’s possible. It’s not a common practice, but it works better than you’d think. I started gardening on a balcony, just a few pots and a window box, and I still think that way sometimes. What could this plant become if I just bent the rules a bit?
Then there’s micropropagation, the sterile lab work of dividing meristem cells into hundreds of plantlets. That’s how we clean viruses. It’s how I scale new varieties. It’s not romantic work, but it’s honest. And it’s opened the door for clearer understanding, healthier plants, cleaner lines, and fewer variables to get in the way when studying how traits are passed on.
And then we come to seed.
Blueprints in Chaos
When you grow from seed, you see the full range of the dahlia’s potential, and its unpredictability. But I’ve noticed something over the years: seeds from larger, more robust parent plants tend to grow into larger, stronger plants themselves. And sometimes, the seed size alone gives you a hint. It’s not a strict rule, but it’s frequent enough to feel worth trusting. The seed is often about the same size as the cotyledon, the first leaf it produces, like the plant is foreshadowing what’s to come.
It also turns out that dahlias aren’t octoploids, as we long believed, but tetraploids. Four sets of chromosomes instead of eight. That reclassification, first suggested in 2023 through the sequencing of ‘Edna C’, was backed up in 2025 by a high-quality, full genome assembly. The project was a collaboration between HudsonAlpha and Dr. Josh Clevenger’s lab, with the genome assembled by Zach Harkess as a major milestone in his PhD research. His work confirmed that dahlias have 64 chromosomes, grouped into four sets instead of eight. It also helped scientists start to understand how those sets are related, which parts may have come from different ancestral species, and how they’ve interacted and changed over time to shape the dahlias we grow today.
The whole thing made a lot of sense to me. There’s too much pattern in hand-crossing for things to be entirely chaotic. I’ve crossed enough dahlias to see familiar traits return, especially when both parents are strong in form or color. Sometimes I see a new variety from another breeder and find myself wondering about its parentage, playing a kind of guessing game in my head. Maybe this came from a cross between that red formal and a pink ball… I don’t know for sure, and I’m probably wrong more often than right. But the fact that my hunches aren’t completely wild tells me we’re working within some kind of structure. There’s just enough consistency to keep the work grounded, and just enough surprise to keep it interesting.
Of course, like a lot of emerging science, the work is still ongoing. More cultivars need sequencing, and there’s plenty left to understand. But tetraploidy feels like the piece we’ve been missing.
Inside every dahlia is a set of instructions, a genetic blueprint made up of tens of thousands of genes. Some of those genes affect obvious things: bloom color, plant height, petal shape. Others stay quiet, only revealing themselves in the right conditions or combinations. You won’t see them until you cross two parents and something unexpected appears, a color you’ve never seen before, or a form that skips the parent entirely and harks back to something older, wilder...