Lawn Watering Tips
How much water does a lawn need?
In general, turf grasses need about 1" of water per week to maintain green color and active growth. However, during certain times during the summer when high temperatures are the norm, you should allow lawns to naturally slow down in growth during those extreme conditions. Many factors such as the soil and weather all have a role in the lawn's water needs.
Water early in the day if possible.
Given a choice, water early in the day when lawns are normally wet from dew. Avoid midday watering due to excessive evaporation, and at night due to potential increased chances of some diseases gaining a foothold. Early watering reduces the amount of evaporation that takes place, allowing more water to reach the root zone.
Spread the water uniformly across the lawn.
Sprinklers vary in distribution patterns, and require spray overlap for uniform coverage. Placing coffee cans or similar straight-sided containers on the lawn can help measure water application rates. Avoid flooding areas, or missing other spots. On heavy soils and slopes, watch for excessive runoff; it may be necessary to apply the water in several applications to allow for adequate penetration.
Water conservation.
To help conserve water, mow your lawn at a higher than normal height, limit traffic over the lawn, improve turf rooting, control thatch and soil compaction. Don't allow water to hit the driveway or into the street. This is just wasteful.
Avoid over watering
Use a rain gauge to measure how much water you're applying. Over watering makes plants prone to pests and adds to storm water runoff, which pollutes our water systems. By choosing and operating a watering system correctly, you can reduce water bills, insect and disease problems, and maintenance requirements.
Monitor rainfall
Don't water the lawn if rains are expected soon. Keep track of rainfall for the week. Don't apply more water to the lawn than what is absolutely necessary. The guide of about 1" of water per week is a guide.
