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Troubleshooting

Step-by-step diagnostic guides that help you identify what's wrong with your plant and exactly what to do next, written for quick scanning.

Plants don't fail suddenly — they tell you through color, texture, and posture what's wrong, usually days or weeks before the damage is serious. The challenge is that the same symptom can have several causes: yellow leaves can mean overwatering, underwatering, nutrient deficiency, or simply old age, and the fix for each is different.

Every guide in this topic walks the same diagnostic flow: symptom description, most-to-least likely causes, a short list of tests to narrow it down, and the specific action for each cause. If you're not sure where to start, begin with the symptom that's most visually obvious and work downward from there.

Guides in troubleshooting

44 articles
Hand holding a yellowing houseplant leaf for inspectionTroubleshooting

Why Are My Plant's Leaves Turning Yellow? A Complete Diagnosis Guide

14 min
Close-up of leaf spot disease — grey necrotic patches on a green leaf, one of the classic fungal causes of brown spotsTroubleshooting

Brown Spots on Houseplant Leaves: A Complete Diagnosis Guide

14 min
Potted plant with wilting, limp leaves drooping over the rim of the potTroubleshooting

Why Is My Plant Drooping? A Quick Diagnostic Guide

12 min
Dense tangle of exposed plant roots — the kind of root mass you uncover when lifting a plant to check for rotTroubleshooting

Root Rot in Houseplants: How to Identify, Save, and Prevent It

13 min
Rows of potted plants lined up inside a commercial greenhouse — the kind of environment supermarket and IKEA plants are grown and shipped fromTroubleshooting

How to Save a Supermarket or IKEA Plant in Its First Month

12 min
Potted houseplant shedding dry, wilting leaves — the classic picture of a plant struggling to acclimate to a new homeTroubleshooting

Why Is My New Plant Dropping Leaves? A Diagnostic Guide

10 min
Houseplant with brown, dried-out leaves — the characteristic look of tip-burn spreading inwardTroubleshooting

Why Are My Plant's Leaf Tips Turning Brown? Diagnosis Guide

11 min
Potted houseplant sitting under a dedicated grow light — the supplementary lighting most Nordic apartments need in winterTroubleshooting

Winter Houseplant Care: The Nordic Apartment Guide

14 min
White panel radiator beneath a wooden window — the classic plant-killing spot in a heated apartmentTroubleshooting

Houseplants Near Radiators: What Goes Wrong, and How to Fix It

9 min
Cool-mist humidifier on a shelf emitting a plume of water vapourTroubleshooting

Indoor Humidity for Houseplants in Winter: What Actually Works

10 min
Hanging indoor plant silhouetted against a bright window with its trailing stems pulled toward the lightTroubleshooting

Why Is My Plant Leggy? Causes of Stretching and How to Fix It

11 min
Close-up of a potted calathea houseplant with patterned leaves folding and lifting upwardTroubleshooting

Why Are My Plant's Leaves Curling? A Complete Diagnosis Guide

12 min
Black and white cat perched on a terracotta plant pot among green foliageTroubleshooting

My Cat or Dog Just Ate a Houseplant — What to Do Right Now

10 min
Close-up of a Calathea lancifolia with lance-shaped leaves — calatheas are the houseplant most prone to inward edge curl from low humidityTroubleshooting

Why Are My Plant's Leaves Curling? A Complete Diagnostic Guide

13 min
Calathea orbifolia leaves with crisp leaf edges — a typical high-humidity-loving houseplant from the Marantaceae familyTroubleshooting

Humidity for Houseplants: What Actually Matters (and What Doesn't)

13 min
Hand holding a yellowing lower leaf on a houseplant by a bright spring window, with green new growth visible aboveTroubleshooting

Why Are My Houseplant Leaves Turning Yellow In Spring?

12 min
Peace lily in a pot on a windowsill with a snowy winter landscape visible through the glassTroubleshooting

How Cold Can Houseplants Survive? Minimum Temperatures by Species

13 min
Glossy green leaves of golden pothos (Epipremnum aureum) — the finish a city houseplant has after being cleaned, and what most unwashed city plants lose in weeksTroubleshooting

Cleaning Houseplant Leaves in Polluted Cities: Dust, Soot, and Why It Matters

9 min
Etiolated Hedera helix (English ivy) next to a normally-grown section — the same plant in low vs adequate light, showing pale, stretched stems and smaller leavesTroubleshooting

Leggy, Pale New Growth After Winter: What's Happening and How to Fix It

9 min
A Ficus elastica (rubber plant) leaf with pale bleached patches — classic sunburn damage on a houseplantTroubleshooting

Why Are My Houseplant Leaves Bleached or Sunburned?

10 min
Peace lily (Spathiphyllum wallisii) in a pot — the classic plant that wilts dramatically when underwatered and yellows softly when overwateredTroubleshooting

Overwatered or Underwatered? How to Tell Them Apart on Any Houseplant

12 min
Variegated Monstera deliciosa 'Albo-Variegata' showing the cream-white sectors on green leaves typical of unstable chimeric variegationTroubleshooting

Why Is My Variegated Plant Losing Its Variegation?

11 min
Small potted Euphorbia milii (crown of thorns) — example of a hardy plant species that survives mail-order transit better than mostTroubleshooting

Plant Transit Shock: Reviving a Mail-Order Plant

10 min
Cross-section of a stem showing internal blackened, soft necrotic tissue — the visual signature of advanced stem rot, which looks the same in a houseplant cutting as in this field exampleTroubleshooting

Mushy Black Stems on Houseplants: Stem Rot vs Cold Damage vs Sunburn

11 min
A mature Dracaena trifasciata (snake plant) with tall upright leaves — the posture a healthy plant holds when light, watering, and roots are rightTroubleshooting

Why Is My Snake Plant Falling Over? 6 Causes and the Right Fix for Each

10 min
A potted Chlorophytum comosum (spider plant) with long arching variegated leaves — the species most sensitive to fluoride in tap waterTroubleshooting

Spider Plant Brown Tips: Causes and Fixes (the Real Fluoride Story)

9 min
A Spathiphyllum wallisii (peace lily) — the species famous for dramatic wilting that recovers within hours of correct wateringTroubleshooting

Why Is My Peace Lily Drooping? The 5 Causes Ranked by Likelihood

9 min
Clear water droplets along the edges of a crucifer (cabbage-family) leaf — a classic example of guttation, the active xylem-pressure expulsion of waterTroubleshooting

Guttation: Why Your Plant Has Water Droplets on Its Leaves in the Morning

9 min
A Phalaenopsis amabilis orchid in full bloom — the moth orchid that almost every supermarket orchid descends from, photographed showing the white-flowered habit and arching spikeTroubleshooting

Why Won't My Orchid Rebloom? The Cool-Night Trigger Most Houseplants Are Missing

12 min
A crested Echeveria glauca succulent showing the soft translucent leaves and partial collapse that follows overwatering — the classic visual signature of root rot reaching the leavesTroubleshooting

Translucent Succulent Leaves: Rot, Cold Damage, or Just Old Age?

11 min
A Saintpaulia ionantha (African violet) in flower at the Copenhagen Botanical Garden — the velvet leaves and central crown that make this plant a beloved gift and a frequent crown rot casualtyTroubleshooting

African Violet Crown Rot: Why Watering From Above Kills Saintpaulia

11 min
Close-up of a yellowing leaf on a potted rubber tree — visible discoloration and stress on a single leaf, the kind of multi-symptom damage the decoder helps untangleTroubleshooting

Plant Leaf Damage Decoder: A Visual Symptom Guide

14 min
Sweetgum leaf showing classic interveinal chlorosis — yellow tissue between dark green veins, the signature pattern of iron or magnesium deficiencyTroubleshooting

Houseplant Nutrient Deficiency: A Visual Identification Chart

13 min
Macro of a Scindapsus pictus leaf with a brown, crispy necrotic edge — the look of new growth that emerged stuck or scorchedTroubleshooting

My Plant's New Growth Looks Wrong: Diagnosing Pale, Small, or Deformed New Leaves

12 min
Epipremnum aureum 'Marble Queen' pothos showing the heavy white-and-green chimeric variegation that the cultivar is prized for — and that gradually reverts to plain green in low lightTroubleshooting

Why Variegated Plants Revert to Green — and How to Reverse It

9 min
Close-up of a Monstera deliciosa leaf showing the natural curl of a young leaf in the process of unfurling — the same shape that, on a mature leaf, signals thirst or heat stressTroubleshooting

Why Are My Monstera Leaves Curling? A Diagnostic Guide

12 min
Close-up of water droplets clinging to a green leaf — the visible surface moisture that humidity-loving plants like calatheas and ferns evolved forTroubleshooting

How to Raise Humidity for Houseplants Without a Humidifier

10 min
Potted Ficus benjamina with widespread yellowing leaves — the kind of yellowing that signals an underlying cause, not normal leaf turnoverTroubleshooting

Should You Cut Yellow Leaves Off Your Plant? When to Prune and When to Wait

9 min
A wilted potted houseplant on a windowsill — the symptom that can mean either overwatering or underwateringTroubleshooting

Overwatered vs Underwatered Houseplant: How to Tell the Difference

12 min
A potted plant with bare dry stems against a textured wall — apparently dead but possibly dormantTroubleshooting

How to Tell if Your Plant Is Dead or Just Dormant

10 min
A blooming Easter lily (Lilium longiflorum) — among the most dangerous flowers for cats, capable of causing acute kidney failure within 12 hoursTroubleshooting

Lilies and Cats: Which Lilies Are Deadly, and What to Do If Your Cat Ate One

11 min
Snake plant in a small ceramic pot with the soil surface visible — the surface most owners check first when their potting soil smells badTroubleshooting

Why Does My Plant Soil Smell Bad? A Smell-by-Smell Diagnosis

11 min
Broken white eggshell on a flat surface — the most viral DIY plant fertiliser ingredient and one of the least bioavailableTroubleshooting

Are Eggshells, Banana Peels, and Rice Water Good for Houseplants?

10 min
Young child holding an orange watering can while watering tomato plants in a garden — most popular houseplants are safe to share a room with, but a small list contains calcium oxalate crystals that hurt if a toddler chews a leafTroubleshooting

Are Houseplants Safe for Babies and Toddlers? A Parent's Guide

11 min

Frequently asked questions about troubleshooting

What's the most common cause of yellow leaves on houseplants?+

Overwatering, by a wide margin. When roots sit in saturated soil, they can't take up oxygen or nutrients, and lower leaves yellow and drop first. Check soil moisture 5–8 cm down — if it's still wet several days after watering, the root zone is the problem.

How do I tell overwatering from underwatering?+

Both cause wilting, which is confusing. Underwatered leaves are thin, crispy, and curl inward; the pot feels light and soil is bone dry. Overwatered leaves are soft, yellowing, and limp; the pot feels heavy and soil is still damp. When in doubt, check the roots — black and mushy means rot, white and firm means thirst.

Can a plant recover from root rot?+

Often, yes, if caught early. Remove the plant from its pot, cut away all black, mushy roots with sterilised scissors, rinse the remaining white roots, and repot into fresh, well-draining mix in a pot one size smaller. Water sparingly until new growth appears.

Should I mist my houseplants?+

For most houseplants, misting doesn't meaningfully change humidity — the effect lasts minutes. For humidity-loving species (calathea, ferns, anthurium) a humidifier or pebble tray is far more effective. Misting is more useful for discouraging spider mites than for hydration.