2torial #0550: Learn2 Water Your Lawn (Continued) Know your lawn's needs Your lawn needs an inch of water per week to stay healthy-looking and green. If there isn't sufficient rain, take matters into your own hands with a sprinkler or hose. Test to see if your lawn is too dry: dig down 4 to 6 inches into the soil. If it's dry all the way down, it's time to start watering. In the summer heat, your lawn may turn brown. Despite common beliefs, you can actually leave off watering--wait for the autumn rains. Take a break from mowing, too. Grass goes into dormancy when its leaves dry out. But after a rejuvenating soak from Mother Nature or the sprinkler, it'll bounce back quickly.   Step 2