Answer: Dull, curling leaves usually indicates water stress and the need for more frequent fertilization. Citrus trees like moist but not overly wet soils and they are heavy feeders. Since your tree is probably in a container, I'd recommend feeding it continuously with a half-strength dilution of liquid fertilizer, applied every 2-3 weeks. Feeding this way will reduce the risk of over-fertilization and root burn. Best wishes with your lemon tree!
Q&A Library Searching Tips