No more than one-third of the grass blades should be cut at a time. Cutting
off one-third of the blade at a time removes just enough to keep your
lawn healthy and not too much to stunt the growth.
happens if you cut more?
If you neglect your lawn for a few weeks during its active growth period
and it gets too high, you will impair the root growth if you cut more
than one-third of the blade to reach the recommended height. Growth will
slow as the grass puts its resources into the leaf tips to help them recover.
Also, repeatedly cutting too much or mowing too short will leave your
lawn susceptible to weed invasions, diseases, and an overall thin stand.
It can also result in an excess of thatch developing.
For instances where the grass has grown too tall (vacations, mower mechanical
problems, prolonged rainy periods), it is advisable to mow the lawn
more frequently than usual until the lawn reaches the desired height.
Never take off more than one-third of the blade at a time.
much of the lawn shown below should be cut?