Keep in mind that you may only need to do this in certain zones of your yard. Your grass will be healthiest if you completely wet the root zone each time you water. It doesn't matter what time of year it is, spring, summer or fall. First, you want to water long enough to moisten the root zone without wasting water. Adjust your watering minutes based on rainfall, type of grass or plants, sunny or shady locations and other characteristics. I water only two or three times weekly, unless it rains. How Long Does It Take to Put 1/2 Inch of Water on the Lawn? This is how long you need to water your lawn. If your lawn is well-watered, your grass should spring right back up where you’ve stepped. If you have to water a lawn more often then often three times per week, you may want to modify your soil or change the type of grass you have. While the general rule of thumb is about an inch or two (2.5 to 5 cm.) The precise number of minutes for each watering will vary from lawn to lawn, depending on factors like the size of your lawn, the type of sprinkler you have, and its settings. How much water does a lawn need? Gradually taper off until you water with 1 inch of water every 10 days. This also tells you that you need to break up watering times to allow the water to soak into the lawn. Be careful not to allow the water to run for too long so you don’t waste water and damage your lawn. In sandy soils where the water penetrates quickly, splitting the water into three applications may work better. 2. Instead of watering at one station for 30 minutes, using the cycle soak method you might turn on your sprinkler for 10 minutes, then let the area rest for 30 minutes, then water again for another 10 minutes. If this is difficult, then the soil is dry, and your grass should be watered. Fescue Grass 101: What It Is and How to Grow It, 3 Things to Look For in a Zero Turn Mower. The amount of water your grass needs to stay healthy. You can also look into treating your water if you are a fanatic like me, check out some Water Softener Reviews, your grass will never be greener. But watering isn’t as simple as setting up a sprinkler system. Watering is one of the main things when it comes to taking care of your lawn. How Often Should Grass Be Watered After it Is Fertilized? For the step test, simply walk on your lawn. But if a relatively warm, dry spell occurs, be prepared to water the lawn just as you would in the summertime. Overall, they require less water than cool season grasses, but even they need extra water in the dead heat. However, during certain times during the summer when high temperatures are the norm, you should allow lawns to naturally slow down in growth during those extreme conditions. Luckily, This Old House has created a guide to watering your lawn, teaching you how long to water, how often to water, and more. Also, avoid fertilizing in the heat because fertilizer can draw moisture out of your lawn. If it doesn’t, it’s lacking moisture, so it needs water. Watering enough to keep your grass green all summer can mean a hefty water bill. In hot weather, your grass will need more water as a general rule, though some types of grass will be fine with less water. Most grass needs about 1 to 2 inches of water per week, but your grass will tell you when it needs a drink. In drought-prone Southern California, for example, you may need to water your lawn anywhere from 20 minutes per week to 200 minutes per week, depending on the region, time of year, and hourly sprinkler output. Get the latest This Old House news, trusted tips, tricks, and DIY Smarts projects from our experts–straight to your inbox. If the idea of keeping your yard in perfect health seems completely overwhelming, you’re probably overthinking it. Bear in mind that during extreme heat, you will need to water more, due to evaporation and heat stress on the grass. You’ll also want to make sure your lawn is properly fertilized, aerated, and overseeded as needed, and that it gets regular weed and pest control. When watering an established lawn, it’s typically recommended to water until the top 6 to 8 inches of soil (where most turfgrass roots grow) is wet. With five annual plans and many a la carte services, TruGreen can keep your lawn lush. Instead of watering a few times a week, you will need to take a mister and gently spray the newly seeded areas once to two times a day, depending on the weather. You should apply about 0.75” (¾ inch) of water each time you irrigate to wet your lawn’s root zone. How much time should be spent on lawn watering? So, when is lawn watering necessary? 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