Diagnosing Plant Problems
Long-form guides on common plant ailments, yellow leaves, mildew, nutrient deficiencies, wilting, and more. Written so you can act with confidence.
Yellow leaves on plants: 7 causes and how to tell them apart
Yellow leaves usually mean one of seven things. Here's how to identify the cause, overwatering, nitrogen deficiency, root rot, light burn, and four more, and exactly what to do next.
Powdery mildew: identification, treatment, and prevention
Powdery mildew looks like flour dusted on your leaves. It's one of the most common fungal infections and one of the most beatable, if you catch it early. Here's how to identify it, kill it, and stop it coming back.
How to spot nutrient deficiencies from leaf symptoms
A field guide to reading nutrient deficiencies from leaf color, pattern, and location. Covers nitrogen, phosphorus, potassium, calcium, magnesium, iron, and the rest, and how to fix each one.
Why is my plant wilting? A diagnostic checklist
Wilting has 6 main causes, and 4 of them aren't lack of water. Walk through this checklist to figure out which one you're dealing with and what to do today.
How to take great plant photos for AI diagnosis
The accuracy of an AI plant diagnosis is downstream of your photo quality. Six rules that make every scan more confident, and how to compose photos for the model's strengths.
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