Bluestone Patio: To Grout or not?
I am building a bluetone patio in my back yard (approx 18 ft X 100 inches). I live on the seacoast of NH. I would like to avoid weeds eventually growing in the seams of the patio (square bluestone, not irregular). My contractor advises against it because of the New England weather. I also like the white lines in between. Am I wrong about this?