Our 10-20-20 Starter/Fall Winterizer Professional Fertilizer is designed to support optimal plant growth during key seasonal transitions. With a balanced ratio of 10% nitrogen, 20% phosphorous, and 20% potassium, this fertilizer provides essential nutrients to strengthen root development and improve plant resilience. The higher phosphorous content encourages root growth, ensuring that your lawn or garden can weather the colder months. Perfect for fall and winter application, it helps your plants store nutrients for the upcoming spring, promoting a vibrant and healthy landscape year-round.