The following links seem to confirm that watering at night is generally bad (because of fungus, mildew):
- link: pretty good info* link includes tips on recognizing when grass needs water* City of Toronto site on water efficiency and lawn watering* link: more from above, specifically on lawn watering in various seasons* link: notes on watering new trees (new trees apparently need 20L of water a day!)
Lesson’s learned from the above
- water preferably in the morning, to avoid fungus and disease due to wetness at night* water long but infrequently* the lawn should get about an inch of water per week (but keep previous point in mind)* need to assess the water output of sprinkler using cans* water when lawn needs it; watch for signs: blue-green blades, long lingering foot depressions, curling* may need to sharpen lawnmower blades (twice a year recommended)* cut to 3" blade height (longer blades give greener, healthier lawn)* cut grass when dry, probably early evening best* should cut no more than a third of the blade’s length* leave the clippings where they fall for nutrient-return to soil (should disappear in a day or two)