Christian writes about the hidden structures of the natural world: spirals, symmetries, adaptations, and the oddities that make plants fascinating. His interests include carnivorous plants, mathematical patterns in nature, and the science behind everyday garden life.
On the last day of the year, a garden can look as if it has been reduced to essentials. Soil, bark, seed heads, paths, the quiet architecture of shrubs. Then a stand of red-twig dogwood catches the low light and refuses to behave like background. The stems are leafless, but they are not dull. They burn red against snow, frost,…
By late December, a houseplant can look both present and paused. The pothos is still green. The snake plant still stands like a row of quiet blades. The fern still catches light with all its small hands. Nothing has died, exactly, but the room has changed around them. The window is colder. The sun leaves early. The heater dries the…
By mid-December, a garden can vanish in the night. Paths soften, beds lose their edges, and the seed heads that looked architectural in November become little dark punctuation marks above a white page. Snow seems to simplify everything. It hides the unfinished jobs, the uncut stems, the fallen leaves that escaped the rake, and the soil you meant to mulch…
In December, a garden becomes very honest. The flowers have stopped covering weak structure. Herbaceous stems have collapsed or turned to seed. Deciduous trees have taken their color down to bark, bud, and branch. Then the evergreens begin to look almost improbable: pine, spruce, yew, holly, boxwood, rhododendron, juniper. They stand in the cold with leaves still attached, as if…
A late-autumn garden in a cold-winter climate can look settled after the first hard frosts. The stems have gone quiet. Leaves are pressed flat by rain. The soil darkens, firms, and seems to have closed the season. Then, one morning, a perennial appears to be sitting too high, its crown pushed above the bed as if the ground has exhaled…
By November, most deciduous trees have become honest silhouettes. The maple has emptied itself. The serviceberry is bare. The birch has given its leaves to the path. Then, at the woodland edge or in a young hedge, a beech or oak still stands with dry copper leaves clinging to every twig, rattling softly whenever the wind moves through. It can…
A black walnut makes itself known in October. The leaves yellow and fall in long, feathery pieces. The nuts drop with a weight you can feel through the soles of your shoes. Their green husks darken, bruise, and stain almost anything that touches them. Under the tree, the ground becomes a small map of influence: shade, roots, shells, leaflets, squirrels,…
By late October, the garden begins to receive its own mail. Leaves arrive one by one, then by the basketful, sliding from maples, oaks, birches, cherries, serviceberries, and every tree that has decided the season is finished. They collect in corners, gather under shrubs, drift across paths, and make the lawn look as if it has been quietly written over.…
Kale looks almost theatrical after the first real frost. The leaves are darker than they were in September, their ruffled edges traced with white, their surfaces stiffened just enough to catch the low morning light. A gardener who does not know the plant might think the crop has been damaged. A gardener who has eaten from the bed before and…
By late September, the garden begins to keep two calendars at once. Tomatoes may still be ripening. Dahlias may still be loud. But above them, a serviceberry starts to ember at the edges, a dogwood darkens toward wine, and a maple holds green, yellow, and red on the same branch as if it has not yet decided what season it…
