Yellow leaves
Overwatering, underwatering, low light, nitrogen deficiency, root rot, natural senescence.
Plant doctor · Free
Diagnose plant problems from a photo. Free.
Tazart's free plant doctor diagnoses plant problems from a photo on iPhone. Photograph the affected leaf, soil, or whole plant and the AI identifies the cause — overwatering, underwatering, root rot, low light, nutrient deficiency, spider mites, mealybugs, scale, fungus gnats, leaf spot, or powdery mildew — then walks you through a day-by-day treatment plan. Diagnosis is free with no daily cap. Tazart's Overwater Detective also disambiguates overwatering from rot, pests, and low light when symptoms overlap. Second Opinion lets you verify a diagnosis from another app.
10 common symptoms
What Tazart can diagnose.
Brown leaf tips
Tap-water fluoride/chloride, low humidity, fertilizer salt buildup, underwatering.
Drooping leaves
Underwatering, overwatering (root damage), heat stress, transplant shock.
Soft mushy stems
Stem rot from overwatering, bacterial soft rot, cold damage.
Webbing under leaves
Spider mites — treat with neem oil and a humidity boost.
White cotton clusters
Mealybugs — isolate the plant and treat with isopropyl alcohol.
Sticky residue
Scale insects or mealybugs excreting honeydew.
Tiny flies in soil
Fungus gnats — let soil dry, top with sand, treat with BTI.
White powdery coating
Powdery mildew — improve airflow, reduce humidity, treat with potassium bicarbonate.
Black or brown leaf spots
Bacterial or fungal leaf spot — remove affected leaves, increase airflow.
Questions, answered
Plant doctor FAQ.
How does free plant diagnosis from a photo work?
Open Tazart, tap Diagnose, photograph the affected leaf or plant, and tap analyze. The AI compares the photo to a database of common plant problems and returns the most likely cause with a confidence score, plus a treatment plan you can follow day by day.
Is the plant doctor really free?
Yes. Diagnosis and the resulting treatment plan are part of the free tier with no daily cap. Treatment reminders and progress tracking are also free.
Can it tell overwatering from underwatering?
Yes. Tazart's Overwater Detective specifically disambiguates overwatering from underwatering, root rot, pests, and low light — the four conditions that produce nearly identical yellowing symptoms. The diagnosis includes a soil-moisture check prompt to confirm.
What's a Second Opinion?
If another app (PictureThis, PlantIn, etc.) diagnosed your plant and you want to verify, paste their diagnosis into Tazart's Second Opinion flow. Tazart cross-checks the symptoms against its own analysis and tells you whether to trust the first diagnosis or treat for something different.
Does it work for outdoor plants too?
Yes. The plant doctor handles houseplants, container plants, vegetable garden plants, ornamentals, fruit trees, and lawn problems. Outdoor diagnoses include weather and soil considerations.
What if I'm not sure which leaf to photograph?
Photograph the most affected leaf with a clear, well-lit shot. If the problem looks like multiple issues, take a second photo of the soil surface and a third of the whole plant — the AI uses all three to narrow the cause.
Will the treatment plan tell me which products to buy?
Tazart suggests the active ingredient (neem oil, BTI, isopropyl alcohol, potassium bicarbonate, balanced fertilizer) and lets you tap through to optional Amazon affiliate links if you want to buy. You can also follow the plan with products you already own.
How fast does diagnosis run?
Typically 2–4 seconds on a normal Wi-Fi connection. The AI runs server-side; the photo never trains a public model and is not retained after the diagnosis.