Symptom Library

Why Are My Plant Leaves Turning Brown?

Brown leaves can follow several different problems. Check whether the damage begins at the tips or margins, forms separate spots, or affects whole leaves, and compare old and new growth before deciding what the pattern means.

8 plant-specific answers connected to this symptom

What this symptom means

Brown tissue is an outcome, not a cause. Dry margins, distinct lesions, soft tissue, and whole-leaf decline point toward different diagnostic checks, so color alone is not enough to choose a treatment.

What to notice first

Crispy tips or margins versus separate spots or larger blotches
Older leaves, newer leaves, or one side of the plant affected first
Whether the pattern repeats on several leaves or remains isolated
Recent heat, cold, strong sun, dry or wet root-zone conditions, pests, or spreading lesions

GardenSolved checkpoint

Do not do this yet

Do not add water automatically; check the root zone first.
Do not fertilize or spray from brown color alone.
Do not remove large amounts of foliage before checking whether fresh damage is still spreading.

Choose the plant-specific owner

Start with the closest match.

Primary matches own this visible symptom. Related-clue matches mention it as part of a broader diagnostic pattern, so use them only when the page title and plant fit what you are seeing.

Vegetables · Broad Beans

Will broad beans recover after frost?

Give plants time to thaw and check them again before deciding whether to replace them. Damage on exposed leaves or tips after a frost is compatible with recovery if lower stems remain firm and healthy growth resumes. If whole plants collapse or lesions keep spreading after the weather improves, investigate other causes as well.

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Containers · Container gardening

Can a Frost-Damaged Potted Plant Recover?

Distinguish injured foliage from uncertain crown or root survival before pruning or feeding.

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Plants · Houseplants

Why are my houseplant leaves turning brown?

Separate dry, crispy damage from wet-root stress, pests, or leaf spots.

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Flowers · Hydrangeas

Why are my hydrangea leaves turning brown?

Read where the browning starts before treating hydrangea leaves.

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Plants · Poinsettia

Why Are My Poinsettia Leaves Turning Black?

Darkened poinsettia leaves or bracts after cold transport may be cold-injured, but colour alone cannot confirm that. Check whether the dark area is damaged tissue or a surface coating, whether the stem base is firm, and whether the root ball stays wet. Stabilise the conditions while you investigate. Tissue that has died will not become green again.

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Fruit · Strawberries