Don’t Be Too Quick to Decide What Is Dead

GARDENING FOR TOMORROW

Marcus Bergin

8/21/20268 min read

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Don't Be Too Quick to Decide What Is Dead

After a prolonged spell of heat and drought, the first proper look round a garden can be rather sobering.

Brown leaves, crispy ferns, hydrangeas that look like somebody's taken a blowtorch to them. Perennials stopped flowering weeks ago, trees are dropping leaves far earlier than they should, and the pots hold the remains of things we thought we were keeping alive. It's easy to look at all that and reach one simple conclusion.

It's dead.

Sometimes we'll be right. No garden gets through a difficult season without losses, especially where newly planted specimens, container plants and anything shallow-rooted have faced conditions well beyond what they can take. But we shouldn't be too quick to decide.

A plant can look dreadful above ground and still be very much alive underneath. Scorched foliage tells us the foliage has been damaged. It doesn't necessarily tell us what's happening at the crown, along the stems, or among the roots. Plants have been surviving difficult conditions for a great deal longer than gardeners have been worrying about how they look. When resources get scarce, a plant may stop flowering, drop leaves, retreat below ground — from our side of things that looks like failure. From the plant's side, it may be doing exactly what it needs to do to stay alive.

A heuchera with scorched leaves can start putting out fresh growth once it's out of the worst of the heat. A geum that seems to have vanished entirely can return after rain. A rose reduced to bare stems might still show a few tiny shoots once conditions ease off. None of those plants looked promising while the damage was at its worst.

Gardening pushes us towards action. We're used to seeing a problem and doing something about it — watering, feeding, pruning, moving, replacing. There's comfort in intervening; it feels like helping. After a stressful summer, though, the most useful thing we can do is often wait.

That's not the same as walking away and not looking. Patience shouldn't be confused with inattention — it means examining the plant properly before deciding what it needs.

Woody plants can be checked by scratching away a tiny bit of outer bark with a fingernail. Green or moist tissue underneath suggests the stem's still alive. If the tip of a branch is brown and dry, check further down rather than writing off the whole plant. Look for buds along the stems and near the base. Bend a small twig gently — living wood usually has some give, dead material tends to be dry and snap cleanly. No single test is perfect, especially on a dormant or badly stressed plant, but together they tell you more than the colour of the leaves alone.

With herbaceous perennials, it's the crown that matters, not the vanished top growth. If it's still firm and healthy, there's every reason to leave the plant where it is. Softness, an unpleasant smell or obvious rot is less encouraging — but a quiet crown under dry stems may simply be waiting its turn.

Bulbs, tubers and rhizomes are harder still to judge, because their survival happens almost entirely out of sight. A plant that made no appearance all summer may still be holding enough stored energy to come back next season. This is where gardeners have to get comfortable with not knowing straight away.

We won't always get the answer within a fortnight. Trees and shrubs badly hit by drought may not show the full extent of their recovery until the following spring. A perennial might put out a few tentative leaves in autumn, or stay invisible until growth normally resumes. There's no harm in marking the spot and leaving the final decision until the plant's had a fair chance to respond.

What I'd avoid is clearing the whole garden simply because it looks untidy. Some leaves really are finished and can come off; broken, diseased or rotting material may need attention too. But not every scorched plant benefits from being cut straight to the ground. Leaves that are still partly green may be contributing something. Stems can shade the crown and offer a bit of protection. Strip off all the damaged growth and you can push a plant into a soft flush of new growth at exactly the moment it should be conserving what it's got.

There are exceptions — some perennials respond well to a sensible cutback and put out fresh foliage the moment moisture returns. Dahlias, hardy geraniums and other vigorous plants can surprise you with how fast they regrow. The point isn't that cutting back is always wrong, only that it should be a decision made about the plant in front of you, not a tidying reflex applied across the whole garden. A scorched hydrangea, an exhausted fern and a dormant perennial don't necessarily need the same response.

Watering needs the same kind of judgement. After weeks of dry weather, a shower transforms the surface of a garden — leaves wet, soil darkened, everything smelling revived. Tempting to assume the drought's over. Push a trowel into the ground and the story can be quite different: the rain may have only reached the top inch, especially where the soil's compacted or badly dried out, and underneath, the roots can still be sitting in bone-dry ground.

The opposite mistake is watering a recovering plant simply because it looked close to death. Roots need air as well as moisture. Permanently sodden compost or soil can damage an already stressed root system, particularly in a pot. Give it a thorough watering where it's needed, then check again before doing it a second time — water according to what the soil actually needs, not how anxious the plant makes you feel.

Feeding wants the same caution. A stressed plant doesn't necessarily need fertiliser. If it isn't actively growing, or the roots are damaged, extra nutrients won't force it back into health — strong feeding can push soft new growth the plant isn't ready to support. Water, the right conditions and time are usually more useful than another product off the shelf.

Moving a plant can help when the position itself is clearly the problem — a pot shifted out of fierce afternoon sun, a small plant given temporary shelter. Digging up an established plant during or straight after severe stress is a different matter entirely; disturbing the roots just adds a second difficulty on top of the first. Unless a plant's facing an immediate threat where it is, it's usually better to watch now and move it during a more sensible season.

This waiting period tells us far more than an immediate clear-out ever could. Some plants recover so strongly we end up revising our opinion of them — they looked dreadful, but the ability to retreat and return is a form of resilience in itself. Others will survive but make it clear their current spot is asking too much of them. A hydrangea scorched in the same exposed corner every year is alive, sure, but that doesn't make the planting a success. Survival and suitability are two different questions.

Some plants will recover and still not earn their space back. If something collapses every hot spell, needs constant watering and spends most of summer looking miserable, you're entitled to decide it doesn't work there. Patience gives a plant a fair hearing. It doesn't create a lifelong obligation to keep it.

The fairest judgement often takes more than one season. An exceptional summer can knock plants that have otherwise performed beautifully for decades, and one hard year doesn't necessarily justify pulling them out. Repeated failure under conditions that are becoming more common deserves closer attention.

Which is why keeping even rough notes helps. We tend to remember the dramatic losses and forget the details — which plants were newly planted, which had afternoon shade, how often they got watered, how quickly they came back. By the following spring most of that will have slipped from memory. Photographs and a few notes can be the difference between spotting a genuine pattern and mistaking one bad year for it.

The garden's own structure can matter too. Full, densely planted borders often fare better, because foliage shades the soil and plants shelter each other. A newly planted garden with wide gaps leaves more bare ground exposed to heat and moisture loss. That's not an argument for overcrowding everything or ignoring competition for water — just a reminder that resilience partly belongs to the planting as a whole. Mulch, ground cover, shrubs and small trees create conditions where individual plants cope better. A plant that scorched badly on its own might behave completely differently with a bit of protection around it.

Trees deserve particular patience. Early leaf fall during drought can look alarming — mature acers, sorbus, beech or parrotia suddenly taking on the look of autumn in August. That leaf loss can be part of how the tree's protecting itself, cutting down the water lost through the foliage. It's not a guarantee the tree will be fine, and a newly planted or badly damaged specimen may need real attention. But early brown leaves on their own aren't proof a tree has died. The buds, the stems, and next spring will tell you more.

A large tree still needs assessing carefully if there's significant dieback, instability, or any worry about falling branches — patience with a border plant is one thing, but a tree that might come down is a different kind of risk, and a professional inspection makes far more sense than waiting to see. Most of the rest of the garden, though, can be given time.

That's hard when the border looks tired and you just want to restore some order. We're drawn to beginnings — pulling out the old plant and buying a replacement feels a lot more hopeful than staring at bare stems. But pulling something out ends the experiment before you know how it turns out.

A plant returning after looking lost can teach you more than a replacement ever will. It shows you where its reserves were held, how it responds to stress, whether it's capable of starting again. What looked like weakness might turn out to have been a sensible retreat. There can be surprises the other way, too — a plant that stayed green all summer might fail later because the roots were damaged underneath, and something that bursts into fresh autumn growth could exhaust itself before winter arrives. Recovery is a process, not a single new leaf.

Which is why the truest assessment often comes the following year. What returns in spring? What flowers again? Which plants regain their vigour on their own, and which stay diminished? That should shape what we grow next — but we don't have to decide all of it right now.

Most of gardening gets taught through action: sow this, prune that, move this, feed that. Leaving things alone gets a lot less attention, even though it's every bit as much a skill — it just feels passive, even when it's built on observation and experience. Restraint might be one of the hardest kinds of gardening there is.

After a whole summer of watering, shifting pots, rigging up shade and trying to keep everything alive, it can feel strange to step back. The emergency's passed, or at least changed shape. The plant no longer needs us leaping at every brown leaf. It needs an honest look, sensible care, and enough time to show us what's actually left.

Some plants will be dead. Some will come back but need moving. Others will recover and leave us wondering why we ever doubted them.

Before reaching for the spade, look for green under the bark, buds along the stems, life at the crown. Check the soil below the surface. Take out what's genuinely finished, but resist turning the whole garden into a recovery project in a single afternoon.

The garden's spent months responding to conditions well beyond its control. We can give it a little time before delivering the verdict.

Happy Gardening.

Marcus

Close-up of brown, wilted dogwood leaves showing signs of heat stress and leaf scorch on a garden shrub.
Close-up of brown, wilted dogwood leaves showing signs of heat stress and leaf scorch on a garden shrub.

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Marcus Bergin

Thoughts, observations and conversations from a life spent in gardens.