This summer my oldest son took over mowing the lawn at home. This was a welcome relief as my summers can get quite hectic and sometimes it goes long periods of time before I find the time to mow it myself. It also allowed me to tackle other things around the yard that I don’t often get to. However, it’s now getting close to time to putting our yard to bed for the winter.
That lends itself to the question, should a person mow
their grass shorter before winter? The
answer is, it depends. Let me elaborate
and we’ll see if I can clear things up a bit.
So, right off, you should be mowing your grass during the growing season
at two to two and a half inches. That
allows the grass to produce enough leaf surface for survival. For winter though and how tall to leave the
grass we need to consider how much snow we get and how long it sticks
around. As this often differs winter to
winter, I don’t know if we can give a concrete answer. However, what is known is that snow mold,
which is a fungal disease of turfgrass in Montana, is prevalent in areas that
have a lot of snow and where it sticks around for a long time. Snow molds can be gray or pink and they love
cool, wet environments. Ultimately, snow
molds cause poor green-up in the spring and areas that look matted down, often
with a growth of mold. The area can enlarge
in the spring if the temperatures remain cool and there is timely rainfall. Once it does warm up in the spring, the mold
goes away, and the grass quite often recovers.
If the grass is cut tall before winter, it creates an
even better environment for the fungus to grow.
So, if you hedge your bets and count on more snow cover this winter,
with it lasting more than 60 days, mow the grass short, approximately an inch
to an inch and a half high. However, if
you figure on an open winter with not much snow cover, keep the grass tall, at
approximately three inches. That way,
the grass will insulate the crown of the grass roots and keep them from getting
too much frost winterkill over the winter months. If you have further questions regarding fall lawn care I would encourage you to contact your local county Extension office.
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