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How often and when should you fertilize your lawn? The answer to this common gardening question depends on the specific kind of grass you in your lawn. All grasses require nitrogen as well as other essential nutrients during active growth.
This means that fertilizing your lawn during dormancy only wastes money and time. Fertilize it too far apart and you’ll see you grass flourish for some time but then slow down, and only flourish again during the succeeding application.
Warm Season Grasses and Cool Season Grasses
St. Augustine, Bermuda grass, and other warm season grasses grow more quickly in warm climates. In general, you’ll need to fertilize them between late spring and early fall. Otherwise, feeding them during early spring will stimulate the development of cool season weeds. Conversely, fertilizing too late during the fall will result in weaker grass that’s more vulnerable to injury when winter comes.
Fescue, Kentucky Bluegrass, Ryegrass, and other cool season grasses flourish better in cooler months during spring and fall. Some cool season grasses could also grow during winter months. This means that if you have cool season grass, fertilization should be performed during spring, fall, and winter if applicable.
Fall, specifically, is a crucial time for lawn fertilization. Greenside Landscaping, a gardening specialist in Salt Lake City, points out that this will ensure that your cool season grass will continue to grow into the cooler months and stock up on reserves it will need for flourishing when spring comes. Don’t fertilize your cool season grass early in the spring because you’ll only end up with excellent top growth, but poor root growth.
For the highest benefit, perform lawn fertilization once between six and eight weeks while your grass is in active growth. Just divide the annual nitrogen requirement into accurate applications. If you don’t like mowing regularly, you can fertilize once during early and late summer if you have warm season grass and once during fall and spring if you have cool season grass.