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Here’s The Nitty-Gritty On What Fertilizer Actually Does For Denver Grass

Colorado largely contains Kentucky Bluegrass. Depending on the age of the lawn, the grass needs three nutrients in varying amounts: nitrogen, phosphorus, and potassium. Established yards need these nutrients less than newer lawns, a fact which your lawn fertilizer service in Centennial, CO, is well prepared to handle. What are these nutrients?


The most important nutrient is needed in the largest quantities and the first to be depleted from the soil. Nitrogen is used for making chlorophyll and processing proteins. Fertilizers come in slow and fast release. Slow-release feeds the grass with fewer applications. Fast release gives you a great lawn, but the roots might be too weak to support the blades.


This is like a vitamin shot in the arm for grass. It contains just about every nutrient grass needs both for blade and root. That’s good for new grass. It’s needed in lesser amounts than nitrogen.


Potassium helps other nutrients do their jobs for the grass. It also helps the turf resist traffic, drought, and disease. If you have green grass in winter, thank potassium.


A lawn fertilizer service in Centennial, CO, fertilizes lawns in late winter when the ground temperature rises to 50 degrees or over. A higher nitrogen ratio is used in order to kick start growth. Fertilize again six weeks later in early April using a slow-release 12-4-8 ratio. Fertilizing in summer isn’t recommended, but in fall, fertilize with a mixture of little to no phosphorous and more potassium such as 12-0-12. Tree and lawn care is Ironwood Earthcare’s abiding passion, so contact us today at to learn more.