Potassium & Phosphorus:

The Unsung Heroes of Lawn Health

When most people think about lawn care, nitrogen is the first thing that comes to mind. It’s the most potent nutrient that delivers that lush, green color everyone loves. However, nitrogen doesn’t work alone. To build a lawn that’s not only beautiful but also resilient, two other nutrients play a starring role: phosphorus and potassium.

Why Phosphorus Matters

Phosphorus is all about roots; without it, grass struggles to establish or recover from stress.

• Stronger, deeper root systems.

• Better access to water and nutrients.

• Quicker recovery after damage or heavy use.

Phosphorus is what makes a lawn sustainable.

Why Potassium Matters

Potassium doesn’t push growth; it protects what’s already been built.

• More tolerant to heat, cold, and drought.

• Naturally resistant to disease.

• Stronger under foot traffic and everyday stress.

• Better at using water efficiently.

Think of potassium as quietly working in the background to keep your grass strong, healthy, and resilient, ready for whatever comes its way.

Why Soil pH Matters

Here’s the catch: phosphorus and potassium can only do their job if the soil is in balance. When soil becomes too acidic (pH below 6.0), these nutrients become “locked up.” They’re still in the soil, but your grass can’t access them—like having money in a safe you can’t open.

That’s why the ideal pH range for turfgrass is between 6.3 and 6.7 (we aim for 6.5). In that sweet spot, nitrogen, phosphorus, and potassium are all available and working together.

👉 Bottom line: Nitrogen makes your lawn green, but phosphorus and potassium make it strong. With the right pH balance, all three nutrients work in harmony to deliver a lawn that looks premium, performs at its best, and lasts season after season.