Credit: Jan Hakan Dahlstrom / Getty Images While some homeowners find regular lawn mowing a soothing, nearly meditative part of their spring and summer landscaping routine, others find it an endlessly repetitive chore. But no matter which category you fall into, a consistent mowing routine is essential for a thriving landscape. However, when it comes to the time of day you cut, not all hours are created equal—and cutting at the wrong time can have negative long-term effects on your grass.