Are We Becoming Too Obsessed with the Gardening Calendar?
REFLECTIONS FROM THE GARDEN
Marcus Bergin
8/28/20267 min read
Are We Becoming Too Obsessed with the Gardening Calendar?
Open almost any gardening magazine as one month draws to a close and you can be fairly certain what's coming next. Jobs for September. Jobs for October. Ten things you must do before winter. What to sow, what to prune, what to lift, what to divide, what absolutely has to be finished before another page comes off the calendar.
I've used gardening calendars my whole working life. After more than twenty-five years doing this professionally, I still find them useful — there are jobs that naturally belong to particular parts of the year, and understanding the broad rhythm of growth, flowering and dormancy is part of knowing how to garden at all. Even so, I think we may have let a useful guide become something a good deal more rigid than it was ever meant to be.
The monthly gardening calendar is hardly a modern invention. John Evelyn's Kalendarium Hortense, published in 1664, gave gardeners month-by-month instructions for the orchard, kitchen garden and flower garden — direct, practical, matching the work to each part of the year. Almanacs, gardening books, newspapers and eventually magazines carried the tradition on, organising a complicated subject into twelve manageable chapters. You can see why the idea lasted. A calendar gives order to a garden that can otherwise feel overwhelming — a reminder to order seeds, protect tender plants, prune at the right moment, prepare for the season ahead. Reassuring, being told this is the month for something, particularly while you're still learning.
The trouble starts when "this is usually a suitable time" quietly turns into "this must be done now."
A garden doesn't know a new month has begun. It responds to temperature, moisture, day length and whatever's happening immediately around it — whether its roots are sitting in workable soil or something resembling concrete, how it's responding to frost, rainfall, wind, the warmth stored in a wall or trapped in a sheltered corner. None of that has ever been identical across the country. A gardener in the far north of Scotland has never shared quite the same gardening year as somebody in Cornwall. Autumn can already be firmly established in the Highlands while a sheltered garden in the South West is still carrying flowers, soft growth, and plants showing almost no interest in going dormant. The same calendar can't describe both gardens without a fair bit of interpretation on top.
Location is only the start of it. Two gardens a few miles apart can get very different rainfall. Heavy clay and free-draining sand won't become workable at the same time, or stay workable for the same length of time. A south-facing wall creates one set of conditions, an exposed hillside another entirely. Even within a single garden, spring can arrive in stages as the sun reaches different borders at different points in the day.
The gardening calendar has always had to simplify these differences, because a book can't observe the soil outside your back door — it can only describe what generally happens in a broadly typical year. I'm no longer sure we get many broadly typical years.
Prolonged heat and drought can bring growth almost to a halt in the middle of summer. Lawns turn brown, perennials stop flowering, trees start shedding leaves long before autumn should have arrived. Fruit ripens early or falls off altogether. Plants conserve whatever water they've got, sacrificing flowers, fruit and foliage just to stay alive. Then rain arrives while the soil's still warm, and parts of the garden start moving again — fresh leaves on plants that seemed finished for the year, spring-flowering plants occasionally producing a few confused flowers out of season, bulbs pushing through earlier than expected while something that should still be performing has already retreated below ground. The garden can end up looking like late summer, autumn and a faint imitation of spring, all at once.
What's the monthly calendar supposed to say to that?
If it says cut a plant back in September, but the plant's only just started growing again, do you follow the instruction or respond to what's actually in front of you? If it says autumn's a good planting season, but the soil's still bone dry several inches down, are you planting in autumnal conditions, or simply during a month that traditionally belongs to autumn?
This is where experience starts to earn its keep — not because experienced gardeners have memorised more dates, but because they've become more willing to look before acting. Ornamental grasses are a good example. They're often assigned a particular cutting-back window, but the more useful signal is the first new growth appearing at the base — that tells you the plant's starting its next cycle, and that the old stems should come off before the fresh shoots grow up through them. The date gives you a rough idea of when to start looking. The plant tells you when the moment's actually arrived.
Pruning spring-flowering shrubs after they flower works the same way. "After flowering" is an observation, not a date — in one garden that point arrives considerably earlier than in another. A cold spring delays it, a warm sheltered spot brings it forward. The garden's always offered these signals. We probably just stopped looking for them once the calendar seemed to offer a simpler answer.
There's an important limit to all this, though. It would be easy to say the calendar no longer matters and we should only follow the weather. That would be just as misleading.
Daylight keeps changing predictably. Whatever's happening with temperature and rainfall, the days shorten as the year moves towards winter and lengthen again heading back to spring, and plants respond to those changing light levels as much as to warmth and water. A spell of autumn rain can encourage fresh growth from a stressed plant, but that growth isn't starting under the conditions it would have had in May — less light available, less time for soft new tissue to mature before the cold arrives. Warmth and rain can give a plant genuinely mixed instructions: the soil says grow, the shortening day says the season's closing.
Which makes our own judgement matter more, not less. A stressed plant putting out fresh shoots after rain doesn't necessarily need feeding to push out even more growth — it may be better left to recover gently. Tender new foliage forced late in the year can get caught by the first frost, leaving the plant to spend precious reserves on growth it was never going to keep. The gardening calendar still earns its place here, reminding us which direction the season's actually travelling in, even when the weather's briefly suggesting otherwise.
There are other jobs where timing can't be reduced purely to what the plant happens to be doing on a particular morning. We protect tender plants because we know colder weather's coming, not because the first frost has already caught them. We collect seed when it's ripe, harvest crops before they spoil, manage plants prone to bleeding or disease within sensible seasonal windows. Some pruning dates are about protecting a plant's future health rather than its present appearance. Wildlife adds another layer on top — nesting birds, hibernating creatures, insects using hollow stems, all with their own cycles that ought to shape when and how we work.
The answer isn't to throw out the gardening year. It's to stop treating every line in it as a command.
The most sensible calendar would be written in pencil. Beside each job there'd be room for a few extra words: if the ground is workable; once flowering has finished; when new growth appears; before hard frost; after a spell of rain; if the plant is dormant; provided birds aren't nesting. And somewhere across every page, a rather large "it depends."
That can sound unhelpful to a new gardener. People quite reasonably want to know when to do something, and "it depends" can feel like an expert dodging the question. It's often the most honest place to start, though — the useful part comes right after: what does it depend on, and what should you actually look for? A calendar says autumn's a good time to move plants. Observation adds that the soil needs to be moist enough to dig without becoming waterlogged, the plant shouldn't be under severe stress, and there needs to be enough suitable weather ahead for the roots to start settling in. The date narrows things down. The conditions make the actual decision.
That way of working also lets us garden our own piece of land, rather than an imaginary average one. A gardener on exposed ground may need to cut tall perennials down earlier, because winter winds will rock them loose at the crown. Somewhere else, those same stems can stand until spring, holding seed for birds and sheltering insects through the cold. Neither's more correct than the other — each is simply a response to its own place. In a very mild garden, dormancy can be hard to spot at all, and some plants keep going well past the period described in a traditional book. In a northern or exposed garden, tender herbs may need lifting and protecting while the same plant's still thriving hundreds of miles further south. On wet ground, Mediterranean plants may need protecting from winter rain as much as from cold. In a dry year, fruiting trees might drop much of their crop early, while established hedgerow plants carry on regardless, drawing on their own deeper reserves.
No single monthly list was ever going to hold all of that.
The gardeners who know their own land best often seem to be doing less, simply because much of their work has shifted from action to watching. They know which part of the garden dries out first, where the frost settles, which border stays cold long after everywhere else has started growing. They notice the buds swelling, the soil changing, the first new shoots pushing up inside last year's stems. None of that can be handed over as a calendar, because it belongs to that particular garden. It only builds up through seasons spent paying attention.
There's another benefit to loosening the calendar's grip, too. Gardening stops feeling like an endless run of missed deadlines. Monthly job lists can leave us feeling permanently behind — before August's even finished, September arrives with a fresh set of urgent tasks. Something always needs pruning, sowing, lifting, feeding or tidying, and the garden starts to resemble a slightly unreasonable employer with no respect for weekends.
Most gardens are a good deal more forgiving than the lists suggest. Missing an arbitrary Tuesday won't usually bring the border down. A job can slip past its ideal moment, and ideal was never the same thing as possible. Sometimes doing the work a bit later is perfectly fine. Occasionally leaving it undone altogether reveals that it wasn't particularly necessary in the first place. That's not an argument for neglect. It's an argument for using your own judgement.
The calendar should help us notice what might need attention. It shouldn't stop us seeing what's actually happening in front of us. Its real value is in teaching the broad sequence of the gardening year, not in convincing us that every garden reaches every stage at exactly the same moment.
After all these years, I still look at what the month suggests. Then I look at the weather, the soil and the plant. If the two disagree, I'm increasingly inclined to believe the garden.
The calendar tells me which way the year is moving. The garden tells me how far it's actually got.
Happy Gardening.
Marcus
