October 10, 2026 — Sweet Botanicals, Granby, Massachusetts
By October, the garden in Western Massachusetts looks very different from the one we knew in July. The perilla leaves that flourished in summer are finishing their season. The tomato vines are tired, the raspberry canes are changing color, and the fruit trees are preparing to surrender their leaves.
To a casual observer, the garden might appear to be shutting down.
But something much more interesting is happening. Plants are responding to shorter days, colder nights, and a changing supply of sunlight. Some are storing energy underground. Others are preparing their seeds for winter. Trees are withdrawing valuable nutrients from their leaves, while soil organisms continue working long after the last vegetables have been harvested.
The garden isn't simply dying. It's preparing for what comes next.
How Plants Know Winter Is Coming
One of the remarkable things about plants is their ability to measure time without a clock.
Many species respond to changes in day length through a process called photoperiodism. Specialized light-sensitive proteins help plants detect changes in their environment, triggering seasonal responses such as flowering, dormancy, and the development of cold tolerance.
Temperature also plays an important role, but day length provides a particularly reliable seasonal signal. A warm October afternoon might resemble a day in May, but the hours of daylight tell a different story.
Our Korean sesame leaves, known as kkaennip or perilla (Perilla frutescens), offer an interesting example.
Perilla is generally a short-day plant, meaning that flowering is promoted when nights become sufficiently long. During summer, the plants devote much of their energy to producing the aromatic leaves we harvest. As the days shorten, they begin shifting toward flowering and seed production.
For gardeners growing perilla primarily for its leaves, this transition marks the natural conclusion of the harvesting season.
For the plant, however, it's the beginning of its reproductive finale.
The Secret Work of Autumn Leaves
Every autumn, New England puts on one of the world's great botanical performances.
The forests turn brilliant shades of yellow, orange, and red. Visitors travel hundreds of miles to photograph landscapes that residents sometimes take for granted.
But the colors aren't simply decorative.
During the growing season, chlorophyll gives most leaves their familiar green appearance while allowing them to capture sunlight for photosynthesis. As autumn approaches, many deciduous trees begin dismantling their photosynthetic machinery and recovering nutrients, including nitrogen, before shedding their leaves.
As chlorophyll breaks down, yellow and orange carotenoid pigments become more visible. In some species, red anthocyanin pigments are produced during autumn, contributing to the spectacular colors of maples and other trees.
The exact display depends on species, weather, sunlight, and the physiological condition of the tree.
What looks like a celebration of color is also a carefully regulated process of conservation.
The tree is reclaiming what it can before winter arrives.
Beneath the Soil, Life Continues
One of the most persistent misconceptions about gardens is that biological activity stops when the growing season ends.
It doesn't.
Soil contains an astonishing community of bacteria, fungi, protozoa, nematodes, arthropods, earthworms, and other organisms. Together, they participate in the decomposition of organic material, the cycling of nutrients, and the formation and maintenance of soil structure.
As fallen leaves and dead plant material accumulate, decomposers begin breaking them down.
The rate of decomposition slows as temperatures fall, but activity can continue whenever moisture and temperature conditions permit.
Fungi are particularly important in this process. Their networks of microscopic filaments, called hyphae, can penetrate organic material and help break down complex compounds that many other organisms cannot readily digest.
Some fungi also form mycorrhizal partnerships with living plant roots, exchanging nutrients and water for sugars produced through photosynthesis.
These relationships are part of the hidden economy of a healthy garden.
When we look across an apparently empty garden in November, we're seeing only the surface of a much more complicated biological system.
Why I Don't Believe in a Perfectly Clean Garden
For generations, autumn gardening advice often emphasized removing every fallen leaf, cutting every dead stem, and leaving the landscape looking tidy before winter.
There are good reasons to remove diseased plants, manage invasive species, and prevent certain pests from overwintering in garden debris.
But excessive cleanup can also remove valuable habitat.
Many native insects spend part of their lives in fallen leaves, hollow stems, soil, or other sheltered places. Some butterflies and moths overwinter as eggs, caterpillars, pupae, or adults, depending on the species.
A layer of leaves beneath trees and shrubs can help moderate soil temperatures, retain moisture, and provide shelter for small organisms.
Standing plant stems may also offer nesting opportunities for certain native bees during the following growing season.
This doesn't mean every garden should be abandoned to disorder. It means that ecological health and visual tidiness aren't always the same thing.
Sometimes leaving a little mess is one of the most useful things a gardener can do.
Perennials Are Playing the Long Game
Annual vegetables complete their life cycle within a growing season, but perennial plants operate on a different schedule.
Raspberries, blueberries, fruit trees, and many perennial herbs must survive repeated winters.
As autumn progresses, these plants undergo physiological changes that improve their ability to withstand cold temperatures.
Growth slows, tissues mature, and carbohydrates and other compounds accumulate in various parts of the plant. Depending on the species, these changes help protect cells against freezing damage and provide stored energy for spring growth.
In deciduous fruit trees, the buds that will produce next year's leaves and flowers are already present before winter begins.
In other words, part of next year's orchard is already waiting inside this year's branches.
I find that remarkable.
The apparent inactivity of winter conceals an enormous amount of preparation.
The Garden as a Living Record
One of the pleasures of maintaining a garden over many years is watching how it changes.
Some plants thrive in locations where others struggle. Soil improves or deteriorates depending on how it's managed. Trees gradually reshape the distribution of sunlight. Wildlife discovers new sources of food and shelter.
A garden becomes a record of decisions, accidents, experiments, and natural processes.
At Sweet Botanicals, we've grown vegetables, herbs, berries, fruit trees, and Korean perilla in a landscape that also supports an extraordinary variety of wild plants and animals.
The surrounding environment is never separate from the garden. Birds carry seeds. Pollinators move between cultivated plants and wildflowers. Fungi and microorganisms participate in processes that extend well beyond the boundaries of any particular garden bed.
Even the changing seasons are part of a larger ecological conversation.
Autumn Is Not an Ending
There's something reassuring about the seasonal rhythm of a garden.
Spring is full of anticipation. Summer is a period of extraordinary growth. Autumn brings harvest, change, and preparation. Winter offers a quieter landscape in which much of the important activity becomes invisible.
Each season makes the next possible.
The leaves that fall in October may eventually contribute nutrients and organic matter to the soil. Seeds wait for favorable conditions. Perennial roots and woody plants carry stored reserves through the cold months.
And somewhere beneath the surface, countless organisms continue the work of maintaining the living systems on which next year's garden will depend.
So when I look across the garden in October, I don't see a place that's finished.
I see a place that's getting ready.
And I find that every bit as interesting as watching it grow.
Sweet Botanicals — Gardening, plants, nature, and the living landscape of Western Massachusetts.





