Brown Tips on Lisbon Lemon - Knowledgebase Question

Fresno, CA
Avatar for imelda742002
Question by imelda742002
May 5, 2007
I recently fertilized a young, potted Lisbon lemon tree with Miracle-Gro fertilizer for citrus and avocado trees. I noticed that the new leaves started to get brown, curled up ends. Did I overfertilize?

Answer from NGA
May 5, 2007
It does sound like overfertilization. Plants in containers, with their contained root systems, are quite susceptible to salt burn. The best way to ferilize containerized plants is to use a half-strength dilution of liquid fertilizer every 3=4 weeks. (Shultz's, Miracle-Gro, Peter's, etc.) This method of feeding will assure the roots have a steady supply of nutrients, but not so much the roots are burned. You can flush excess salts out of the potting soil by flooding it 2-3 times and allowing excess water to drain between each saturation.

Best wishes with your citrus tree!

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