Can You Spot the Deficiency?

Ten leaves, each with a most-likely problem. It's pattern practice, not a diagnostic tool: sharpen your eye, then verify on your own plants.

• Ten random rounds, four choices each
• See the most likely cause + what to check first after every answer
• Best score saves locally and challenges you next time

Real leaves rarely show one clean problem. Deficiencies overlap, and pH lockout, overwatering, light stress, and normal late-flower fade all mimic nutrient deficiencies. Treat a photo as a starting point, not a diagnosis: check root-zone pH, watering, and environment before adding anything.