Plant disease identifier by photo

Know what is wrong with your plant from one photo.

Photograph the leaf. Plant Sickness Identifier names the plant, spots the disease, pest or nutrient problem, rates how serious it is, and hands you a treatment plan you can start today.

Free to download. Houseplants, vegetables, fruit trees, roses and lawns.

A hazel leaf with small brown spots ringed by yellow halos, photographed for diagnosis in Plant Sickness Identifier
Diagnosis Moderate severity

Hazel

Leaf spot

Category
Fungal infection
Match
85%
Treatment plan
4 steps

Start from what you can see

Which of these does your plant look like?

Most plant problems announce themselves on the leaves. Pick the closest match to read what usually causes it, what to check first, and when a scan settles it.

How it works

One photo, a diagnosis, a plan

  1. Plant Sickness Identifier home screen with the Scan Plant button, recent scans and the common threats library

    Photograph the leaf

    Open the camera and frame the part of the plant that looks wrong: a leaf, a stem, the soil. Good light and a close, steady shot are all it needs.

  2. Result screen diagnosing a hazel leaf with leaf spot, a fungal infection of moderate severity, with key symptoms listed

    Read the diagnosis

    The app names the plant, the likely problem and its category, rates the severity, and lists the symptoms it read from your photo so you can check its reasoning.

  3. Scan history listing a healthy Madagascar periwinkle, healthy lettuce and a hazel with leaf spot

    Follow the plan, keep the record

    Every diagnosis comes with treatment steps and prevention tips. Scans stay in your history with their match confidence, so a recovering plant is one tap from its last check-up.

What a scan gives you

Everything a worried plant owner asks, answered in one card

The result reads like a plant clinic's notes: what it is, how bad it is, what to do first, and how to stop it coming back.

Plant and problem

Names the plant, then what is wrong with it

Common name and Latin name, then the diagnosis: a disease, a pest or a nutrient issue, with the category spelled out so you know what kind of problem you are treating.

Severity and match

Tells you how serious, and how sure

A severity rating sets the urgency. A match score shows how cleanly your photo read, so a blurry shot of a distant leaf never masquerades as a confident answer.

Treatment plan

Step-by-step treatment, least drastic first

Prune this, change that, then reach for a spray only if the gentler steps fail. Prevention tips follow so the same problem does not come back next season.

Care basics

Water, light, soil and humidity for that plant

Because half of all sick plants are simply being watered wrong. Each result carries the plant's own care requirements next to the diagnosis.

Ask a follow-up

Ask what the diagnosis did not cover

Is it safe for the cat? Can the cutting still be saved? A chat sits beside every scan for the questions a result card cannot answer.

Threat library

Thirty common threats you can browse before they strike

From aphids and spider mites to root rot and verticillium wilt, each with a picture, a risk level and its season, so you recognize a problem the day it appears.

The Common Threats section of the app showing aphids, powdery mildew and root rot with risk levels

Plant problems, A to Z

Thirty threats in the app. Fifteen guides here, to begin with.

Each guide covers the signs, the lookalikes, the plants it hits, a treatment plan and how to keep it away, sourced from university extension services and the RHS.

Browse every plant problem guide

Questions

Before you scan

How does Plant Sickness Identifier diagnose a plant?

You photograph the affected part of the plant. The app identifies the plant, reads the visible symptoms, matches them against known diseases, pests and nutrient problems, and returns the most likely cause with a severity rating, the symptoms it found, a treatment plan and prevention tips.

Which plants does it work on?

Houseplants, vegetables, fruit, herbs, shrubs, roses and trees. The plant is identified first, so the care advice and the treatment plan fit that plant rather than a generic one.

Does it detect pests as well as diseases?

Yes. Aphids, spider mites, mealybugs, scale, thrips, whiteflies, fungus gnats, leaf miners, slugs and more sit in the same library as the fungal, bacterial and viral diseases, alongside nutrient deficiencies and watering problems.

How accurate is it?

Each result shows a match score, so you can see how confidently the photo read. Treat it as a fast, careful first diagnosis: it tells you the most likely cause and what to do first, and your local extension service or a plant clinic has the final word on anything that needs a chemical treatment.

Is the app free?

It is free to download, and a subscription unlocks the premium features. There is no separate charge per scan.

Plant Sickness Identifier app icon

Your plant is telling you something. Find out what.

Free to download on iPhone. Scan a leaf, read the diagnosis, start the plan.

Free to download