What Is 13-13-13 Fertilizer Used For?
13-13-13 is a balanced granular fertilizer nearly identical in use to 10-10-10 but slightly more concentrated. Common in the southern United States for general garden, lawn, and landscape use. Apply at 7.7 lbs per 1,000 sq ft to deliver 1 lb each of N, P, and K. It's interchangeable with 10-10-10 and 15-15-15, just adjust the application rate proportionally to the concentration.
What You Need to Know
13-13-13 is a balanced granular fertilizer nearly identical in use to 10-10-10 but slightly more concentrated. Common in the southern United States for general garden, lawn, and landscape use. Apply at 7.7 lbs per 1,000 sq ft to deliver 1 lb each of N, P, and K
It's interchangeable with 10-10-10 and 15-15-15, just adjust the application rate proportionally to the concentration.
For personalized recommendations based on your specific garden size and fertilizer, use our fertilizer calculator.
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