Plant problem guides
Common houseplant problems
A visible symptom can have more than one cause. Start with a careful check, then take the smallest useful action.
Houseplant problem diagnosis guides
Find likely causes and practical next steps for yellow leaves, brown tips, curling, drooping, pests, root rot, and slow growth.

Plant diagnosis
Brown Roots and Green Leaves: What to Check
Brown roots do not always mean rot. Learn how to check root texture, smell, soil, symptoms, drainage, and when repotting is justified.
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Plant diagnosis
Houseplant Edema: Why Leaves Blister and What to Do
Houseplant edema causes water-soaked blisters and corky spots. Learn what it is, what to change, and how to judge recovery by new growth.
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Disease guide
Powdery Mildew on Houseplants: Causes and Next Steps
Identify powdery mildew on houseplants, separate it from look-alikes, remove affected foliage, improve airflow, and choose label-safe treatment.
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Pest guide
Aphids on Houseplants: What to Check and How to Respond
Learn how to identify aphids on houseplants, inspect new growth, clean honeydew, choose label-safe control, and stop them spreading.
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Pest guide
Whiteflies on Houseplants: Identification and Control
Learn how to identify whiteflies on houseplants, find hidden nymphs, isolate the plant, use traps and label-safe treatment, and prevent spread.
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Pest guide
Why Do Houseplant Pests Keep Coming Back?
Houseplant pests return when hidden stages, nearby plants, new arrivals, or favorable conditions escape treatment. Use a repeatable check to break the cycle.
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Plant diagnosis
Why Are My Houseplant Stems Turning Soft?
Soft stems can mean rot, wet roots, cold damage, low light, or simple flopping. Check the base, roots, and tissue before cutting.
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Plant diagnosis
Houseplant Leaf Spots: Damage, Disease, or Pests?
Separate houseplant leaf spots from pests, disease, sun, cold, and root stress, then choose the safest first response.
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Plant diagnosis
Houseplant Leaf Scorch: Causes and What to Do
Learn how to identify houseplant leaf scorch, separate sun, heat, salt, water, and root stress, and stop new damage without cutting healthy growth.
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Plant diagnosis
Why Is My Houseplant Wilting When the Soil Is Wet?
A wet-soil wilt is not a signal to add water. Check drainage, roots, heat, pests, and dry pockets, then choose the safest recovery step.
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Diagnosis
English Ivy Leaves Turning Yellow: Causes and Fixes
Diagnose yellow English ivy leaves by checking leaf age, wet or dry soil, roots, light, pests, leaf spots, nutrients, and recent changes.
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Diagnosis
Why Are My Philodendron Leaves Turning Yellow?
Diagnose yellow Philodendron leaves by checking leaf age, wet or dry soil, roots, light, pests, nutrients, and recent changes.
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Diagnosis
Why Houseplant Leaves Droop: A Practical Check
A practical diagnosis for drooping houseplant leaves, from dry soil and wet roots to heat, cold, light, pests, repotting stress, and normal daily movement.
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Diagnosis
Why Houseplant Leaves Turn Black
A practical diagnosis for black houseplant leaves, from mushy rot and leaf spots to dry tips, sooty mold, pest frass, cold damage, and recovery steps.
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Diagnosis
Why Houseplant Leaves Look Pale or Washed Out
Diagnose pale or washed-out houseplant leaves by checking normal growth, variegation, light, roots, water stress, fertilizer salts, and pests.
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Diagnosis
Why Your Houseplant Is Not Growing
Diagnose slow houseplant growth by checking season, light, roots, watering, pot size, soil, fertilizer, pests, and realistic plant speed.
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Diagnosis
Why Houseplant Leaves Turn Yellow After Repotting
Diagnose yellow houseplant leaves after repotting by checking settling stress, roots, wet mix, dry pockets, pot size, light, and fertilizer timing.
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Comparison
Overwatered vs Underwatered Plants: Key Signs
Tell overwatered and underwatered houseplants apart by checking soil depth, pot weight, roots, leaf texture, drainage, and recovery signs.
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Diagnosis
White Mold on Houseplant Soil: What It Means and When to Act
A practical diagnosis guide for white growth on houseplant soil, from surface fungi and salt crust to wet mix, fungus gnats, drainage, and root rot warnings.
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Pest guide
Thrips on Houseplants: Damage Signs and What to Do
A practical pest guide for spotting thrips on houseplants, reading silvery scars and black specks, isolating plants, and preventing spread.
Read guideLeaf changes
Yellowing, browning, curling, and leaf drop.
02Water and roots
Overwatering, underwatering, and root health.
03Pests
Find likely culprits before treatment.
04Growth and stress
Light, soil, nutrients, and adjustment stress.
Leaf changes
Leaf color, edges, texture, and where the change begins can provide useful clues. Diagnosis guides separate natural ageing from a care or environment issue.
- Yellow leaves
- Brown tips
- Leaf curling
- Leaf drop
Water and roots
Watering problems are often made worse by guessing. Start with the soil, drainage, roots, pot size, and changes in the growing environment.
- Root rot signs
- Overwatered vs underwatered
- Soil staying wet
- Repotting stress
Pests
Common indoor pests can look similar at first. Guides focus on safe identification, plant condition, and prevention rather than one-size-fits-all treatment.
- Fungus gnats
- Mealybugs
- Spider mites
- Scale insects
Slow growth and pale leaves
Plants can slow down because of seasonal light, low energy, compacted soil, roots, or acclimation. Identify the limiting condition before adding fertilizer.
- Plants not growing
- Pale foliage
- Low-light stress
- Root-bound plants
Find the condition behind the symptom
A diagnosis is more useful when it connects to the plant's normal care and the growing conditions around it.