Key Fertilizer Recommendations

• Buy phosphorus-free: Look for a zero in the middle of the N-P-K nutrient analysis on the fertilizer bag, such as 20-0-10. The middle number represents the phosphorus content.
• Choose slow-release nitrogen: Opt for fertilizers with at least 25% slow-release nitrogen. This allows your lawn to absorb nutrients over time, reducing the risk of runoff.
• Use organic fertilizers: Organic fertilizers, like worm castings, release nutrients slowly and improve soil health without introducing harmful synthetic chemicals. They are less likely to contaminate groundwater.
• Create a buffer zone: Do not apply any fertilizer within a 10 to 30-foot buffer zone adjacent to the lake or other waterways. Planting native, deep-rooted vegetation in this area will help filter runoff.
• Mind your application: Use a drop spreader instead of a rotary spreader near the water to prevent granules from scattering directly into the lake. 
• Clean up: Sweep up fertilizer released onto a hard surface, such as a sidewalk or driveway promptly.
• Timing is key: Do not apply fertilizer before a heavy rainfall or on frozen ground, as this significantly increases runoff.
• Don't use "weed-and-feed": These products contain unnecessary pesticides and are often applied where they aren't needed, causing further harm to the water.