Proper lawn watering is the most important aspect of organic tree and lawn care, yet it is the biggest frustration that homeowners face.
99% of lawn care problems are lawn watering related. Improper watering causes lawn funguses, kills beneficial microbial activity, kills soils and causes shallow growing grass roots. These common lawn care problems are all caused by improper watering techniques and many lawns problems are caused by either under watering, over watering, too frequent of watering, and / or poor sprinkler coverage. Sometimes a single lawn will have sections that are over watered and other sections that are under watered.
All the lawn watering problems can be fixed by closely following the lawn watering technique called 1, 2, 3, 2, 1 lawn watering. Organo-Lawn invented this lawn watering technique specifically for lawn in Boulder and Fort Collins Colorado, but this technique is universal worldwide.
Some signs of over watering a lawn include: severely compacted soils, the presence of Necrotic Ring Spot lawn fungus, the abundance of insect pressure, mold, root rot, and a shallow root system, all reasons you should not over water a lawn. Over watering a lawn is much worse for the grass and trees than under watering a lawn. The reason over watering a lawn is worse is because the water replaces the air in the soil which starve the soil of oxygen. This will result in shallow grass roots and it will kill the beneficial microbes that are living in the soil. Air is extremely important to maintain a living soil and without the proper amount of air in the soil the lawn will suffer. Most of the time when we see a watering problem in a Boulder or Fort Collins area lawn we advise the customer that we need to adjust the lawn watering schedule in their lawn, they often assume we want to water more. This might be true some of the time but the majority of the time we end up reducing the frequency of the lawn watering schedule and increasing the duration.
This is a picture of Necrotic Ring Spot Fungus which is caused by severe over watering of the lawn.
Greater than 85 degrees F2.1 inches of water per week(7/10th of an inch of water 3 times a week)
Between 70-85 degrees F1.4 inches per week(7/10th of an inch of water 2 times a week)
Less than 70 degrees F.7 inches of water per week(7/10th of an inch of water 1 time a week)
Greater than 85 degrees F1.5 inches of water per week(1/2 of an inch of water 3 times a week)
Between 70-85 degrees F1 inch per week(1/2 of an inch of water 2 times a week)
Less than 70 degrees F.5 inches of water per week(1/2 of an inch of water 1 time a week)
Greater than 85 degrees F1 inch of water per week(1/3 of an inch of water 3 times a week)
Between 70-85 degrees F.66 inches per week(1/3 of an inch of water 2 times a week)
Less than 70 degrees F.33 inches of water per week(1/3 of an inch of water 1 time a week)