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Signs of an overwatered lawn can be visual, physical, or related to pests and weeds. Visually, the grass may appear yellow, wilted, patchy, or thin instead of green and lush. You might also notice the presence of mushrooms, other fungal growths, or an increase in weeds like crabgrass. Physically, the soil may be waterlogged, soggy, and perpetually damp. An overwatered lawn often feels mushy or makes a squishing sound underfoot, even several hours after watering. Additionally, you may see an increase in pests such as grubs. To prevent overwatering, ensure your lawn has proper drainage through periodic aeration and adjust your watering schedule to meet its actual needs.

You should not water your lawn every day, even in hot weather. For most lawns, watering one to three times per week is sufficient. It is best to water during a drought or when temperatures are high, but avoid watering in the middle of the day or if the temperature exceeds 95 degrees Fahrenheit. The extreme heat will cause the water to evaporate before the soil can fully absorb it. The best time to water is in the early morning at dawn or in the early evening (between 4 p.m. and 6 p.m.) when the temperature is cooler.

Mowing at least once a week during the growing season is a good general rule. However, every lawn is different, and factors like frequent rain and fertilizer use can cause grass to grow faster, potentially requiring mowing as often as every four days. When you mow, always follow the 'one-third rule': never cut more than one-third of the grass blade's height at once, as this can weaken it and prevent it from taking in proper nutrients. For most grass types, the ideal height is around 2 to 3 inches, though some warm-weather grasses do better when kept shorter at about 1.5 to 2 inches.

Yes, it’s acceptable to water the lawn in very hot weather, but you should try to water between 6 a.m. and 10 a.m. for best results. However, watering when the temperature is above 95 degrees is ineffective. If you’re concerned about whether to water your lawn during extreme heat, consult a local lawn care professional who can recommend a watering schedule based on your grass type and climate.