Your plant is telling you something.
Upload a photo of the affected area. Identify the species and get care tips to help your plant recover.
Upload a photo of the affected leaves, stem, or whole plant
JPG, PNG or WebP · Max 4 MB · 1 free identification per day
- Focus on leaves or flowers — avoid blurry or backlit shots
- One plant per photo works best
- Natural light gives the most accurate results
Common plant symptoms and what they mean
Most plant problems have a clear cause. Start by identifying the symptom, then identify the plant — the right fix depends on both.
Overwatering, nutrient deficiency, or lack of light.
Root rot from overwatering or root-bound soil.
Low humidity, tap water minerals, or irregular watering.
Powdery mildew — a fungal disease that spreads quickly.
Temperature shock, overwatering, or repotting stress.
Scale insects or aphids — pest infestation.
Fungal infection, bacterial disease, or sun scorch.
Low light, depleted soil, root-bound pot, or dormancy.
Underwatering, heat stress, or pest damage (thrips).
Botrytis (gray mold) — needs immediate treatment.
How to diagnose a plant problem
Identify the plant
Upload a photo to get the species name. Knowing what plant you have is step one — care needs differ widely between species.
Match the symptom
Compare what you see against common symptoms for that species. Yellow leaves on a cactus mean something different than on a fern.
Get the full diagnosis in Olmi
Download the Olmi app for AI-powered diagnosis, treatment steps, watering reminders, and care history for every plant you own.
Know your plant. Know what's wrong. Fix it.
The web tool identifies the species. The Olmi app goes further — disease diagnosis, pest identification, treatment steps, watering reminders, and care history for every plant you own.
Download Olmi Free
Frequently Asked Questions
How do I identify a plant disease from a photo?
Upload a clear photo of the affected leaves, stems, or roots. The tool identifies the plant species and shows basic care information. For a full disease diagnosis with treatment steps, download the Olmi app.
Why are my plant's leaves turning yellow?
Yellow leaves are usually caused by overwatering, underwatering, lack of light, or nutrient deficiency. Upload a photo of your plant to identify the species, then use the Olmi app for a full diagnosis and personalized care plan.
What do white spots on plant leaves mean?
White spots can indicate powdery mildew, pests like spider mites or mealybugs, or mineral deposits from tap water. Identifying the exact cause requires a photo of the affected area.
Can this tool identify plant pests?
The free web tool identifies the plant species from a photo. For pest identification and treatment recommendations, download the Olmi app which includes AI-powered diagnosis.
Is the plant disease identifier free?
Yes, the free web tool allows 1 plant identification per day. For unlimited identifications, disease diagnosis, and full care history, download the Olmi app.
My plant is wilting — what should I do?
Wilting is most commonly caused by underwatering or root rot from overwatering. Upload a photo to identify your plant first, then adjust watering based on the species' needs.