Reasons to Fertilize a Lawn

Grass Type

• Sometimes it is necessary to fertilize a grass simply because its grass type dictates the need. Different species of grass need more fertilizer than others. Kentucky bluegrass and perennial ryegrass, for example, need more fertilizer than tall fescue or buffalo grass.

Lawn Support

• New lawns need more fertilizer during the first few years to enhance density. Fertilized lawns also better maintain their color and vigor. And the healthier a lawn, the better able it is to withstand stresses such as heat, traffic, pets and drought. Because growing season varies from one region to another, the amount of fertilizer and the timing of the application will vary.

Essential Elements

• Fertilizing a lawn ensures that it has the necessary elements -- nitrogen, phosphorus and potassium -- that it needs for proper growth and vitality. Proper nitrogen allows grasses to grow vigorously and helps it to maintain a deep-green color. Phosphorus is important to stimulate early root growth and to promote early plant vigor. The presence of potassium in its proper levels allows grasses to effectively use nitrogen and helps to reduce environmental stresses and lessen the occurrence of diseases.

Homeowner Desires

• Homeowners who seek a particular look for their turf may only accomplish the goal by fertilizing their turf. For instance, to grow a thick, dense turf will require more fertilizer than for a lighter-colored, thin lawn. Homeowners should consider that heavy fertilizing programs will spur rapid growth and require more mowing, cultivating and irrigating.