How to Increase Grass Density
Moss, weeds, lack of soil nutrients and a thick layer of thatch can contribute to low grass density in your lawn. Bare spots and thin blades are often a sign of poor cultivation practices. Research the type of grass growing in your yard in order to know exactly what kind of nutrients it needs for healthy root systems. A healthy root system can compete with weeds and produce a yard with thick grass. Increase your lawn's grass density for a yard that will make your landscape more attractive. Does this Spark an idea?
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Instructions
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Control the amount of moss by dethatching your yard when you see an abundant amount of moss or your thatch is higher than 1/2-inch thick.
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Dig a 6-inch hole to take samples for a soil pH test, and mail the samples to the laboratory's address provided with your pH kit.
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Amend the soil based on the results of the pH test. Add lime to acidic soil and sulfur to alkaline soil.
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Fertilize your yard after the grass has come out of dormancy with a fertilizer high in nitrogen. Use a slow-release fertilizer if the ground has warmed up, or a quick-release fertilizer if your soil is cold.
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Apply a pre-emergent herbicide in the early spring to control weeds that will sprout and crowd out grass in your lawn.
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Spot treat existing grass with a post-emergent, broadleaf fertilizer to kill weeds and not your grass.
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Tips & Warnings
Rent a power rake to dethatch your yard. Set your power rake's blades according to the amount of thatch that has built up in your lawn. Thick thatch requires a low blade level. Rake up the thatch debris.
According to Oregon State University Extension, moss encroachment is one of the main causes of thin turf. Increase the amount of sunlight to your grass by pruning large overhanging branches.
