Are Watering Rules of Thumb Accurate?Posted on September 25, 2017
One inch of water per week, 30 minutes per zone, 15 minutes per zone: no matter the advice, these one-size-fits-all solutions to watering lawns are all myths. You cannot apply this type of watering advice because all lawns and sprinklers differ. One inch of water or 30 minutes per week might be the right amount for some lawns and sprinkler systems, but certainly not all.
Determining How Much to Water
Every lawn is different. In fact, your yard might have changing water needs between sections. Several factors affect the amount of water your lawn requires. Watering recommendations are scientific. Factors which affect watering include:
- Soil Composition – Clay, sandy, and rocky soil all hold water for different amounts of time.
- Type of Grass – Different grasses have different root systems which affect watering needs.
- Climate/Season – Hot and dry weather or climates require more water than rainy or humid ones.
- Evapotranspiration (ET) – ET is a rate which combines water’s environmental evaporation and transpiration (evaporation out of the plant).
- Mower Blade – Dull blades damage grass, which then absorbs less water.
Keep in mind that depending on your watering method, you might need to water for more or less time. If you have a sprinkler system, these are typically designed to distribute moisture evenly over your lawn. If you use, hoses and sprinklers or water by hand, you will need to be more careful about distributing water as needed across your grass.
Help From an Expert
A lawn expert can help you determine the ideal amount of water for your lawn by taking soil samples, measuring root depth, and measuring the inches of water put out by your sprinklers per hour. Contact Pearson Sprinkler Co. to have a lawn care expert help you.
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