Healthy lawns depend on many factors including adequate water, sunlight and carbon dioxide for energy production, and oxygen for respiration.
Lawn growth also depends on nutrients or essential elements absorbed by roots from the soil. When natural soil processes do not provide adequate supplies of these essential elements, fertilizer can be applied to maintain optimum turfgrass growth. The purpose of fertilizing a lawn is to add the necessary nutrients in the required amounts and at the proper time to achieve desirable lawn qualities and healthy turfgrass plants.
Keeping it green 3-visit program:
In the spring, the roots begin growing before the leaf blades do. Fertilizing now will deliver more nutrients to this root system and help strengthen it for the coming growing season. A feeding now will also green-up the lawn after being dormant over the winter.
Prior to the onset of the hot summer months, one more application is recommended. Fertilizing at this time is done to strengthen the lawn for the hot, dry weather ahead and to help keep its green colour until you start to see the fall colours.
Ready for hibernation.
The roots in the fall continue to grow a few weeks after evidence of top growth comes to a halt. Again, as in the spring, the roots will be able to utilize more of the available nutrients. This feeding will also help get your lawn off to a fast start the following spring.