Does a lawn stay greener longer in dry conditions if you mow more or less frequently?

Question

I want to keep my lawn as green as possible during the summer without watering. We live in NC, and it's been very dry. Should I keep the lawn short (mow every week) or let it get longer between mowings (mow every 2-3 weeks)?

Answer 1

That is not a possibility.  The bottom line is the grass needs water or it will go dormit.  Waiting that long will cause nothing but damage because the grass will be taller and you will be taking off more than 1 third of the grass blade thereby causing damage and sending the grass into shock.  Unless you have bermudagrass or bentgrass do not cut lower than 3 inches if you want the lawn to stay greener.  

Answer 2

most master gardeners suggest a bit longer cut in the drought season.  Mow each week, or ten days if it is slowing in its growth.  

Answer 3

I agree that raising your mower will help your grass keep the moisture in.  

Answer 4

Let the grass grow as long as you can stand it, when you do mow set your mower as high as it will go.  The lawn will hold more moisture,  this way, and be able to go longer with out watering.

Answer 5

Yes, longer grass will prevent the ground drying longer than if you cut it short. In very dry weather I would cut as infrequently as possible, and not lower than 3". The rate of growth is determined by the weather, so don't confine yourself to a schedule, cut when you think it needs it.