To keep the lawn in your garden he althy and green, you have to water it regularly. However, there are a few rules that you need to follow because you can do a lot of things wrong when it comes to water supply. This also includes the right amount and frequency. How to know how long you need to water the lawn.
How long and how often should you water the lawn?
In order to water the lawn properly, you should supply it with 20 to 25 liters of water per square meter about once or twice a week. This promotes he althy root growth and prevents dependence on frequent watering.
Why regular watering is so important
Grass roots are very short and often only extend a few centimeters into the ground. This can be particularly problematic in dry and sunny locations if the soil quickly loses moisture due to temperature and the position of the sun. Since the lawn cannot supply itself from the depths of the ground, you now have to provide the water it needs. As a rule, summer downpours are not enough, because a lawn needs an average of around 2.5 liters per square area per day - plus the up to four liters of water that evaporate on hot and sunny days.
Do not water the lawn daily
You should definitely not water your lawn every day, as this will train its roots to grow directly below the soil surface and thus become dependent on a frequent supply of water. This becomes particularly problematic if you want to travel for a few days and don't have anyone to turn on the lawn sprinkler every day. Instead, you can also “educate” it by watering it thoroughly once or twice a week and in the required amount of around 20 to 25 liters per square meter.
How long and how often should you water the lawn?
The weekly watering rhythm means that the soil is well moistened to a depth of around ten centimeters, so that the roots can draw on this reservoir and are not dependent on a more frequent interval. To be able to estimate how long you need to water, it is best to place a rain gauge (€4.00 on Amazon) in the middle of the lawn and run a stopwatch while watering. When the vessel is about two centimeters full of water, stop the timer. At this point you have reached the required amount of water - how long it takes depends on the size of the lawn, the position of the sun and the irrigation system.
Tip
Check the watering success by taking samples from the lawn about ten centimeters deep. These should be quite dry in the first one or two centimeters below the surface and slightly moist underneath.
