Botanical Symptom Triage Protocol
Yellow Leaves & Root Rot Diagnoser
Diagnose yellowing foliage, soft stems, crispy margins, or root rot with evidence-backed remedies.
Symptom Checklist
Diagnostic Protocol
What this tool is doing
Yellow is a symptom, not a diagnosis. This page walks wet vs dry, old leaf vs new leaf, and sends you to rot triage when the mix has been wet too long. It is a decision tree. It is not a lab.
One lowest leaf going yellow on an otherwise firm plant is often age. A flush of yellow on new growth plus a heavy pot is not age. Still stuck: Plant Doctor or send Nick a photo from the end of that page.
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Ask Nick About Your Plant
Send Nick a quick note through our contact form and he will reply by email. If a photo would help, he will ask for one in his reply.
Include in your message:
- Plant name if you know it
- Window direction (N/E/S/W)
- When it was last watered
- One sentence describing the issue