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Watering & Mowing Guidelines for Organic Lawn Care Program

Posted by Peter DiClemente on Apr 29, 2016 1:01:50 PM
In a Systems approach Organic Lawn Care program, what happens in between our visits can be just as important as the services we are providing. Here are some guidelines for watering and mowing that will support our efforts. Since every property has different variables when it comes to watering (soil conditions, water pressure, sun exposure) there is no exact science for a watering schedule. Use these principals to help determine the best schedule for your lawn. 

Irrigation for Established Lawns

  • Deeper less frequent watering: Shallow frequent watering encourages thatch and weeds. The object is to get the grass roots to grow deep. Roots will grow deep only if water is available deep in the soil. This is why less frequent but deep watering is better. The surface soil dries out but the deep soil remains moist, encouraging the roots to grow deeper. Water will penetrate deeper if you water about ½ inch, wait two or three hours and then water one inch.
  • Water early morning: The best time to water is early morning. This allows the grass and soil surface to dry off throughout the day. Watering in the evening may promote fungal diseases, which are often related to excess moisture.
  • Avoid over watering: The amount of water your lawn needs depends on the type of grass/soil, sun exposure, and rainfall amount. A simple way to determine how much water the lawn is getting, place a few empty tuna cans on the lawn during a watering. Adding organic matter to the soil (compost top dress) will increase the soils ability to hold water, requiring less irrigation over time. Check for puddles on the grass surface or excessive runoff on driveways or walkways. Timers can be helpful and are found at most home centers.

Irrigation For New Lawns

  • Keep moist with frequent short waterings: The goal for seed germination is to keep the soil moist. If puddles occur on the soil surface, it will move the seed around or cause it runoff. It is best to water a newly seeded lawn by hand until the seed has germinated and has established a root system.


  • Sharp blades: We need to take mowing a bit more seriously if we want to keep our organic lawn healthy. Mowing is a stress producing process for the lawn, but we can minimize that stress with a few simple techniques. Start with a sharp mower blade. A dull blade will rip the grass leaving it wounded and open to disease. Avoid removing more than one third of the leaf at each cutting. A more severe cut will produce additional stress from which the plant must recover.
  • Raise height of cut: In order to produce thick, dense grass and get a deep root system, raise the height of cut to 3 to 3-1/2 inches. There are four direct benefits that we get from longer height of cut. The taller leaf shades the soil surface and keeps weed seed from germinating. It also cools the soil surface during summer stress periods. It is effective at out competing weeds. And most importantly, longer leaf length aids photosynthesis (more blade surface exposed to the sun). If your lawn will be used for entertaining or if there is a big weekend of sports planned for the lawn, then of course mowing the lawn shorter would be appropriate. If you are mowing the lawn down more than a few inches, try and do it in increments. For example: mow once, then lower the mowing height and mow again in a different direction. Always try to alternate mowing patterns.
  • Mulch cut (recycle clippings): Always try and leave grass clippings on the lawn, they will breakdown and provide a good source of nitrogen for the soil. There are a few exceptions when it may be necessary to bag the clippings: the first mow of the year, to remove winter debris. When the lawn is overgrown and the clippings could smother the lawn.

As always, feel free to contact us for assistance. We are more than willing to reach out to your irrigation and mowing service to discuss the program, so we are all working together toward a healthy safe lawn.

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Pure Solutions specializes in organic turf care, tick, mosquito, and deer control services. Our Think Pure blog provides resources to making your yard safe and enjoyable without the use of harmful chemicals. We "Think Pure" in order to protect our community and the environment.

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