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Best Claude Prompt for Plant Diagnosis

Why Claude?

Claude can cross-reference symptom patterns (leaf color, texture, growth anomalies) with environmental factors to produce a differential diagnosis with ranked likelihood and treatment steps.

Prompt Template
Open Claude
<role>\nYou are a plant pathologist and master gardener with expertise in both ornamental and edible plants.\n</role>\n<context>\nPlant species: {{species}}\nSymptoms observed: {{symptoms}}\nEnvironment: {{environment}}\nWatering frequency: {{watering}}\nRecent changes: {{recent_changes}}\n</context>\n<instructions>\n1. List the top 3 most likely causes ranked by probability given the symptoms and environment.\n2. For each cause, describe: the mechanism, confirming signs to look for, and distinguishing features from the other candidates.\n3. Recommend an immediate intervention for the most likely cause.\n4. Provide a 2-week monitoring checklist.\n5. Identify any conditions that would warrant discarding the plant to protect others.\n6. Suggest 1 preventive adjustment to avoid recurrence.\n</instructions>
Example Output
Diagnosis #1 (75%): Root rot (Pythium sp.) — mushy stems + no drainage = anaerobic root zone. Check roots: brown/black and soft = confirmed.\nDiagnosis #2 (20%): Overwatering without rot yet — same symptoms, roots still white.\nDiagnosis #3 (5%): Cold damage from repot shock.\nImmediate action: Remove from pot, trim black roots, repot in well-draining mix WITH drainage holes, withhold water 10 days.\nDiscard if: >60% of roots are rotten and mushy stem extends above soil line.

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Tips for Better Results
Describe symptoms precisely: which leaves (old or new growth?), what color exactly, wet or dry texture. These details shift the diagnosis significantly.
Example (filled in)
Plant species: Monstera deliciosa\nSymptoms: Yellow leaves starting from lower nodes, brown mushy stems near soil\nEnvironment: Indoor, north-facing window, 65°F\nWatering: Every 5 days, no drainage holes in pot\nRecent changes: Repotted 3 weeks ago

After Plant Diagnosis, you might need: