What is a recommended fertilization practice for lawns in the fall?

Using a well-balanced fertilizer is recommended for lawns in the fall because it provides essential nutrients that support root growth and overall plant health as the grass prepares for the winter months. A well-balanced fertilizer typically contains equal parts of nitrogen, phosphorus, and potassium, which are crucial for various plant functions.

In the fall, cool-season grasses benefit from the additional phosphorus, which helps with root development and prepares the plant for the stress of winter. This balanced approach ensures that the lawn not only receives nitrogen for foliage growth but also potassium for disease resistance and phosphorus for root establishment.

Other options do not support optimal fall lawn care. Applying high nitrogen fertilizers only can promote excessive leaf growth at the expense of root development, which is not ideal as the grass needs to strengthen its root system in preparation for dormancy. Only watering before fertilization neglects the need for nutrient balance and becomes less effective without good nutrient application. Fertilizing every week can lead to nutrient buildup, waste, and potential harm to the grass, as it does not allow the lawn to utilize the nutrients properly. A well-balanced approach in the fall encourages robust grass health heading into winter.