When summer temperatures spike, keeping a lush, healthy garden becomes a real challenge. Sprinkling water for a few minutes in the afternoon might feel helpful, but during a heatwave, inefficient watering actually does more harm than good.

Whether you’ve got an established green space or you’ve just laid brand-new turf, how and when you water makes all the difference.

Here is your heatwave cheat sheet to keep your grass, and the rest of your garden thriving.