‘as a general rule of thumb, its recommended to aim for about 1 to 1. 5 inches of water per week, including rainfall,’ says gene caballero, co-founder of lawn care specialist greenpal. · to keep your lawn healthy, aim to water your grass one to two times a week , providing 1 to 1. 5 inches of water each time. Most lawns need about 1 to 1. 5 inches of water per week. · read on to learn exactly how long to water your lawn for a healthy, vibrant turf. To hit that mark: This expert 2025 guide covers ideal watering times, frequency, and tips to keep your lawn healthy and green. · watering grass isnt hard, but the topic is more complex than you might think. A typical lawn needs about one inch of water per week , usually split into two 30-minute sessions. But how long this takes depends on your specific setup, including your lawn’s size, sprinkler type, and settings. Our experts weigh in on how long to water grass for each season. · how long should you water your lawn for? · watering your lawn correctly requires knowing how often and how long to water it. · wondering how long should i water my lawn ?