I've always been perplexed, nay, amazed at the cutting heights commonly mentioned on here.
Anything over 3 inches I would regard as a field for grazing sheep, rather than a lawn. Where
I live in New Zealand, it never snows on my lawn and I have Hunter irrigation installed, so it
never gets a chance to dry out. And lately, I've decided to lower the cutting height.
As I've been away at critical times, the cutting height has crept up a bit, over the last sum-
mer, because I don't catch the clippings - the area is too big for that - and the amount of
clippings would've been too great, if I'd cut it at the usual mower setting. But the winter
weather is here, growth has slowed and so I've dropped from 3 inches to two and a quarter.
And I plan to go lower, yet.
That's produced the inevitable few bits of yellow turf, as all the photosynthesising leaf area
has been removed. It will 'green up' over time, but it did make me wonder. So here's a question
for all you budding turf agronomists:
When the aim is to shorten the grass length, what's best?
1) Lower the cutting height a notch at time, over an extended period, until the desired height was achieved?
2) Hack the hell out of it at a mower setting a couple of notches below the desired height, then let it grow back to the desired height?
A few potential considerations.
Would the choice of 1 or 2 be influenced by the season, like Spring, Summer or Autumn (Fall)?
Grass species would also be a factor, I suspect. Mine's dominated by dwarfing rye (lolium perenne)
and fescue (festuca rubra fallax).
Details here. Cutting height can be as low as 1 inch.
I'm using option (1) for now, but I'm keen to hear other perspectives.
When measuring cutting height, how do you do it? I check it off against a tape, when the
mower is standing on concrete. But when it's going across the lawn, there will be an extra
height margin gained as the mower wheels ride across the actual turf vegetation. How much
extra height would that add to the standing-on-concrete measurement, I wonder? Another
quarter of an inch? More?