| Water Your Lawn Without Wasting Water
In most places, the weather is hot and lawn sprinklers are sending arcs of water across lawns from coast to coast. The question is: how much of this watering is actually hurting more than it’s helping?
Over watering lawns not only wastes water, it also encourages weed growth and can cause damaging grass diseases. Watering sessions that don’t last long enough can cause shallow root growth. Watering at the wrong time of day can actually do more harm than good. Give your lawn just the right amount of water and it won’t only look good, but it will withstand droughts better in the future.
Know your grass.
Different types of grass have different water requirements; even that can change depending on the local soil and environment. You can look for information online. However, your best sources for localized knowledge are area garden clubs and nursery professionals. Let them know about mature trees, shade, and anything else that can impact your watering needs.
Imitate the weather.
Nature tends to have a lot of rain followed by drier weather. This is the best policy for your watering schedule, too. Make sure you water enough to penetrate the soil as deep as the roots, plus one inch. Then, let your lawn almost dry out before watering again. You can tell when a lawn is ready for water simply by walking across it – if your footprints remain, it’s time to water again.
Take measurements.
This takes some effort, but can really pay off. First, measure your root depth in several places to get an average. Add one inch to that and you know how deep you want the water to reach. Now, you need to figure out how long to run your sprinklers to reach that depth.
After several days of a dry spell, place cups, cans, or other containers capable of holding a couple of inches of water, around your lawn. Run your sprinkler until these containers hold an inch of water and note how long that took. Wait until the next day and see if the water penetrated deeply enough, or too deeply. Conduct the test again; adjusting the length of time you run the sprinkler until you have just the right time. Eventually you will know exactly how long you need to run your sprinkler to achieve ideal conditions.
Make adjustments.
If nature provides rainfall, be sure to reduce your watering. However, if conditions are particularly hot or windy, you may need to water more often.
Reduce your dependence on sprinklers. There are things you can do to minimize the number of times you water your lawn. These start with choosing native grasses or those best adapted to your area. You can also let your grass grow a little taller, which reduces evaporation by shading the roots.
Aerating the soil promotes root growth, which makes it easier for grass to draw moisture from the soil. Working organic matter into the soil also helps it to retain moisture longer.
Finally, keep mower blades sharp. Cleaner cuts not only make your yard look nice and even, they also make lawns look greener and cause less evaporation. As a result, your landscaping skills will also look sharp!
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