Citric Acid for Plants: When It Helps and When to Avoid It

Citric acid can lower pH, but it is not a general fertilizer, pest control, root-rot cure, or leaf wash for plants. Its useful roles are narrow: adjusting a measured pH-related problem or supporting a specifically directed application. For tomatoes, houseplants, and most vegetable beds, a soil test, sound fertility plan, and proper watering are safer…