
Week 42: First Frost (William Cullen Bryant, Hannah Arendt, Homer C. Sampson, Thomas Hardy)
NOVEMBER 1ST, 2026

Fig. 1. [Frost] (circa 1910). Wilson Alwyn Bentley. The Metropolitan Museum of Art.
Last Quarter Moon; November Cross-Quarter Day
Headnote
We interrupt this fall’s journey through the northeast woodlands with a reflection on the threshold that is the first frost (prima pruina, if it were a Latin binomial).
Is it death or birth that defines the earthly conditions of the human? Hannah Arendt famously argued that, while the biggest questions of philosophy tend to be oriented around the fact of our mortality, it is in fact natality—biologically, the birth of new people; and politically, the possibility of new beginnings—that grounds and enables our individual and collective life. As she writes in her book, The Human Condition, “Only the full experience of this capacity [i.e., natality] can bestow upon human affairs faith and hope” (247). In a looser sense, natality is a feature of the natural and plant worlds as well as human life and history. We can see it even in the first frost, whether the slow dying of a gentle freeze or the harsh punctuation of necrosis.
Yes, the first frost (prima pruina) marks a turning point, for many plants, between anthesis and senescence—that is, between the developmental phase in which a flower is fully open, functional, and capable of pollination; and the protective process through which plants dismantle themselves in order to preserve their vital nutrients and core architecture. But it’s more of a gradient than a line: a dip in temperatures may blacken tender basil leaves or dahlias, but hardy kale and asters will persist for a while longer. Here in the Boston area, first frost typically falls sometime in the days after Halloween—a few weeks later than in surrounding areas of New England, due to the combined influences of coastal climate moderation and urban heat islands. Yet the changes introduced by the first frost involve life and nuance as much as sharp loss.
Let me count some of the ways:
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Samuel Taylor Coleridge was only half correct when he observed that “The Frost performs its secret ministry, / Unhelped by any wind.” For the frost does accept the help of a bacterium, Pseudomonas syringae, which lives on leaf surfaces and “seeds” ice a few degrees below freezing, when plain water would stay liquid. Some frost damage, in other words, is partly microbial: a living thing is part of the freeze.
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Frost is also a sweetener. Hardy crops such as kale and parsnips convert stored starch to sugar as temperatures fall, lowering the freezing point of their sap and protecting their cells, so that the plant’s defense becomes our flavor. Likewise, fruits such as persimmon and medlar benefit from some degree of bletting, as they linger in that amorphous transition between ripening and decay.
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As the nights cool, the decay of a leaf reveals some of its true colors. The yellows and oranges of autumn foliage, at least, are carotenoids present all summer, unmasked as the chlorophyll disintegrates and its nutrients are reclaimed by the tree (the red anthocyanins, however, are made fresh in the fall).
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Some plants make frost of their own. This is not merely the bloom of powdery pruina you may have noticed on grapes or blueberries (or other living things), itself named after the frost. Instead, various species commonly called “frostweed” draw water up through their stems, which split in the cold and release the water as curling ribbons of ice. Neither frost nor flower, these “freak[y]” blooms are the plants’ own sap, produced as they shut down for winter.
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As a necessary phase in the life cycle of some plants, winter also can serve as an instruction. Milkweed and several native coneflowers cannot germinate until they undergo what gardeners call cold stratification: weeks in cold, moist conditions, which reset the chemical and hormonal clocks for germination. For such seeds, natality requires the cold.
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Some plants simply decline to stop. Several native and immigrant species bloom in autumn or winter; for example, witch hazel’s ribbon-like petals curl in the cold and unroll when it warms, while hellebores and snowdrops open in late winter, sometimes through snow. For them, anthesis is not interrupted by the cold but persists through it.
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In the concept of “frostmas,” which has spread on social media over the past few years, primarily among small-scale flower growers and farmers, the death of the plants can bring a rush of beauty and much-needed rest—and new economic questions and challenges, as sources of income necessarily shift.
Fig. 2. “1 to 10 Maple. 11 to 18 Spindle Tree.” From Francis George Heath, Autumnal Leaves. 1881. Third Edition. London: Kegan Paul, Trench, and Co., 1885.
Readings
- The wind-flower and the violet, they perished long ago,
And the brier-rose and the orchids died amid the summer glow;
But on the hills the golden-rod, and the aster in the wood,
And the yellow sun-flower by the brook in autumn beauty stood,
Till fell the frost from the clear cold heaven, as falls the plague on men,
And the brightness of their smile was gone, from upland, glade, and glen.
William Cullen Bryant. “The Death of the Flowers.” New York Review and Athenaeum Magazine (November 1825). Rpt. An Autumn Pastoral: The Death of the Flowers. Illus. C. E. Phillips. Troy, New York: Nims and Knight, 1888. n.p.
- The miracle that saves the world, the realm of human affairs, from its normal, “natural” ruin is ultimately the fact of natality, in which the faculty of action is ontologically rooted. It is, in other words, the birth of new men and the new beginning, the action they are capable of by virtue of being born. Only the full experience of this capacity can bestow upon human affairs faith and hope, those two essential characteristics of human existence which Greek antiquity ignored altogether, discounting the keeping of faith as a very uncommon and not too important virtue and counting hope among the evils of illusion in Pandora’s box. It is this faith in and hope for the world that found perhaps its most glorious and most succinct expression in the few words with which the Gospels announced their “glad tidings”: “A child has been born unto us.”
Hannah Arendt. The Human Condition. 1958. Second Edition. Chicago: University of Chicago Press, 1998. 247.
- VON MOHL (13) in 1860 was the first to announce that previous to the fall of the leaf there is formed near the base of the petiole a definite separation layer in which abscission always occurs by the separation of the cells from each other with their walls still intact. The xylem tubes not being included in this separation layer are finally ruptured mechanically, and the leaf falls. He also called attention to the fact that abscission and the formation of a protective tissue are two very distinct processes, and that the latter process might either precede or follow the former. […] The external factors capable of accelerating leaf-fall are extremely diversified. These have been summarized in the main by LLOYD (8). The more important are high and low light intensity, high and low water supply, high temperatures and frost, low concentrations of anesthetics, toxic concentrations of acids and salts, and wounding of the blade. On the other hand, low concentrations of oxygen and high concentrations of anesthetics retard leaf-fall, a state of rigor being produced by the latter.
Homer C. Sampson. “Chemical Changes Accompanying Abscission in Coleus Blumei.” Botanical Gazette 66.1 (July 1918: 32-53). 32, 33.
- I leant upon a coppice gate
When Frost was spectre-grey,
And Winter’s dregs made desolate
The weakening eye of day.
The tangled bine-stems scored the sky
Like strings of broken lyres,
And all mankind that haunted nigh
Had sought their household fires.
The land’s sharp features seemed to be
The Century’s corpse outleant,
His crypt the cloudy canopy,
The wind his death-lament.
The ancient pulse of germ and birth
Was shrunken hard and dry,
And every spirit upon earth
Seemed fervourless as I.
At once a voice arose among
The bleak twigs overhead
In a full-hearted evensong
Of joy illimited;
An aged thrush, frail, gaunt, and small,
In blast-beruffled plume,
Had chosen thus to fling his soul
Upon the growing gloom.
So little cause for carolings
Of such ecstatic sound
Was written on terrestrial things
Afar or nigh around,
That I could think there trembled through
His happy good-night air
Some blessed Hope, whereof he knew
And I was unaware.
Thomas Hardy. “The Darkling Thrush.” The Graphic (December 29, 1900). Rpt. Poems of the Past and the Present. Second Edition. New York and London: Harper & Brothers, 1902. 169-171.
Supplementum
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National Centers for Environmental Information. “When to Expect the First Fall Freeze.” National Oceanic and Atmospheric Association (October 23, 2023).
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Keith C. Heidorn. “The Snowflake Man of Vermont.” The Public Domain Review (February 14, 2011).
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Wilson A. Bentley. “Jack Frost Designs Jewels of His Own: A Consummate Winter Artist, He Exhibits His Crystal Treasures on Snow Bank and Window Pane.” The New York Times (February 19, 1928).
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Cynthia D. Kelly, Thomas J. Fellers and Michael W. Davidson. “Parenchyma Abscission Layer.” Tallahassee, Florida: The Florida State University National High Magnetic Field Laboratory, 2015.
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Fanny Söderbäck. “Natality or Birth? Arendt and Cavarero on the Human Condition of Being Born.” Hypatia 33.2 (Spring 2018): 273–88.
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Moreno Nourizadeh. “To Begin Anew: Natality, Forgetting, and the Politics of Beginning.” Version 1.0 (Preprint). Zenodo (November 7, 2025).
Fig. 3. “Photographs of two plates of drawings from Prillieux (1869) of transverse sections of frost-frozen petioles of Chelidonium quercifolium(upper drawing) and Symphytum tauricum (lower drawing).” Fig. 1 from M. E. McCully, et al. “The management of extracellular ice by petioles of frost-resistant herbaceous plants.” Annals of Botany 94.5 (2004): 665-74.
✦ From The Earthly Book of Hours ✦
- In addition to several visual refinements across the site, I added a tool for visitors to hold onto specific pages and links. Look for the “keep this page” button near the bottoms of readings, which will (1) generate an image and a URL based on the displayed content and (2) give you options for sharing, saving, printing, or copying them. You can keep items from across the hours, the seasons, and the weather.









