1/3 grass-cut rule

 If my grass is 6 inches tall....
and i cut it to 4 inches,  following the 1/3 rule.

how long do I have to wait,  before I cut it ANOTHER 1/3 ?

 Never heard of a 1/3 rule.  I rely on common sense.  Hot temps, leave it
long.  Competing weeds, leave it long.  If the grass blades curl over, its
way too long.  You start seeing horizontal/lateral runners, its too short
unless you put your golf ball on it.  Then, none of this matters.

............
Jonny

 I know the   1/3   "rule"  is supposed to be a real  "rule", but it never
made much sense to me.  If I followed it  (never have)  my lawn would never
ever look mowed.

For me, I try to never cut more than  80 %  at one time.


--James--

 On Wed, 25 Jan 2006 20:45:05 -0500, James wrote:


The 1/3 rule (really a suggestion) is more or less to keep you from
creating thatch. If you let the grass blades get long then hack them down
short, the sheaf on the blades will toughen and thicken. This is what
gives your lawn a "woody" feel to it when you walk on it.

The other reason for the 1/3 rule is the when you mow off more than this,
there is a big reduction of nitrogen stored in the blade...ie removed. The
grass blade has to rebuild it's store of nitrogen, thus a heavy pull of
nitrogen from the soil. Doing this a few times a season will not cause
major harm to the lawn, but repeated hacking will cause thatch and
chlorosis.

--
http://resources.ywgc.com  

 

what kind of grass?
Without that knowledge I would say at least 1 week.