Healthy and Greener grass

The key to a healthier and greener grass, is how short you cut it (or how long you leave it).
The shorter the grass is cut, the more it needs fertilizer (nutrients). 
The more fertilizer is used, the more water is required. 

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Make sense to me.

 This is how it works.
Longer grass traps more moisture and
reduces the sunlight that gets to the roots, which can burn the grass and dry it out.

Grass reacts to the sun the same way our skin does. Too much sun without protection will burn it. 

You don’t put sunscreen on top of your head because your hair protects your skin. 

Not so for a bald head.

The same goes for long grass, it provides shade for the roots and soil.

Long grass also develops a deeper root system which makes the grass more fit for dry and less fertile soil.

The best tip I received is:
set your mower on its highest setting and your grass will still look nice, trimmed, and greener than ever.

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So how long should you wait before cutting the lawn? 
And how short should you cut the lawn? 
According to the Cornell University Cooperative Extension, cutting the lawn with a lawnmower set at a proper mowing height can save you from having to bag your grass clippings, even if you don't own a mulching mower. 
The rule of thumb suggested by the Cornell Extension is, 
"Mow when your grass is dry and 3 to 3-1/2 inches tall. Never cut it shorter then 2 to 2-1/2 inches or remove more than one third of the leaf surface at any one mowing."

Finally, keep in mind this tips
- keep lawnmower blades sharp. 
That will make clean cuts, and clean cuts promote better grass health. Dull blades, by produce rougher cuts that make the grass more susceptible to disease.
- mow early morning or in the evening. 
Avoid the hottest part of the day.
- alternate the direction in which you mow each time. 

Stay Frugal,
Daniela