Gardener Help

Plant problem guides

Plain-language background on common symptoms — what they usually mean and what to check before you act.

Each guide explains one specific symptom: what it looks like, what usually causes it and what to check before you act.

Brown Spots on Tomato Leaves

Brown spots on tomato leaves can mean early or late blight, septoria leaf spot, or sun scorch. Upload a photo for an evidence-based analysis, not a guess.

Tomato Leaves Turning Yellow

Tomato leaves turning yellow at the bottom, or all over? The likely cause depends on exactly where and how it shows up. Upload a photo for a real analysis.

Aphids on Roses — How to Recognize Them and What to Check

Aphids on roses are usually easy to spot — small insects clustered on shoot tips — but not always. See the signs to check before assuming, and confirm with a photo.

Cucumber Plant Wilting

Cucumber plants often wilt in afternoon heat and recover by evening — that's usually normal. Constant wilting is a different story. See what to check.

Powdery Mildew on Roses — How to Recognize It

A white, powdery coating on rose leaves and buds is usually powdery mildew — a fungal disease that spreads fast in warm, humid weather. See what to check before treating.

Spider Mites on Cucumbers

Fine webbing and pale speckling on cucumber leaves usually point to spider mites — common in hot, dry weather. See what to check before you treat.

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