What do NPK numbers mean on fertilizer bags?

NPK stands for Nitrogen (N), Phosphorus (P), and Potassium (K). The numbers represent the percentage of each nutrient by weight. For example, 10-10-10 means 10% nitrogen, 10% phosphorus, and 10% potassium.

How often should I fertilize my lawn?

Frequency depends on your grass type and season. Cool-season grasses typically need 3-4 applications per year (spring and fall), while warm-season grasses may need 4-5 applications during their growing season (spring through fall).

When is the best time to fertilize?

For cool-season grasses, apply in early spring and fall. For warm-season grasses, apply in late spring through early fall. Avoid fertilizing during extreme heat or drought conditions.

What's the difference between organic and synthetic fertilizers?

Organic fertilizers are derived from natural sources and release nutrients slowly over time. They improve soil health but may take longer to show results. Synthetic fertilizers provide quick results but don't improve soil structure.

Can I over-fertilize my lawn?

Yes, over-fertilization can burn your lawn, cause excessive growth, and contribute to environmental pollution. Always follow recommended application rates and avoid applying fertilizer to wet grass or before heavy rain.