If done correctly, you can water late afternoon, when the heat is wearing off, and have the lawn dry out before night time. I would say starting around 3-5pm and ending no later than 7pm. Even then, you may be setting your lawn up for fungus and disease. If you have an automated system, set it up for the early morning!
The best time to water plants is in the morning or evening.
Morning watering is actually preferable to evening watering as the plant has time to dry before the sun goes down. At night, water tends to rest in the soil, around the roots, and on the foliage, which encourages rot, fungal growth, and insects.
The best time of day to water a lawn is early morning, between 4:00 and 8:00 a.m. The cooler temperatures and minimal wind allow water to soak deeply into the soil without much evaporation. Also, during this window, there's not as much demand for water on municipal systems, which can impact pressure.
Avoid watering grass on a hot afternoon when it's 95 degrees or higher. The best time to water grass is at dawn or in the early evening. Water deeply three times a week instead of a little water daily. Test whether your sprinkler system is watering your lawn evenly.
It is often recommended that you water your lawn early in the morning, as early as 4 am and no later than 10 am. During extreme heat, watering should be done no later than 7 am.
During extreme heat or drought conditions, the requirements rise to 2 to 3 inches of water. 2. WATER EARLY IN THE DAY You want to water when there is the smallest opportunity for evaporation and waste.
Watering early in the morning is important when it comes to keeping your lawn hydrated. The best time to water is 6:00 AM to 10:00 AM which allows the grass and soil to properly soak in the water. On the hottest days, try to mow even earlier—before the dew dries.
"If your goal is to conserve water, consider watering your lawn between 10 p.m. and 6 a.m.," Valenzuela says. "This period is ideal as it reduces the opportunity for water to evaporate and often adheres to municipal watering restrictions."
All watering is required to take place either in the early morning, before 9 a.m., or late afternoon, after 4 p.m., and those using sprinklers are supposed to keep watering to eight minutes, unless they have water-conserving nozzles, which bumps their watering time up to 15 minutes.
Can You Water Grass After Mowing? Yes, you can water grass after mowing, however it is healthy to water it but only if it requires it. Watering will help the mowed blades perk up and survive being cut better. Take care not to water a lawn overwatered or from noon till late into the night.
The best time to water outdoor plants is in the morning when temperatures are usually cooler. This gives the plants time to absorb the water so they can get through a long, hot day. The second-best time is late in the afternoon or early in the evening. Try not to water at night.
Overwatering can have some serious consequences for your lawn. First, it can cause the roots of your plants to rot, which will kill them. Additionally, overwatering can cause your lawn to become very wet and muddy, which will make it difficult for it to breathe. This can lead to the grass dying as well.
If your grass is turning brown despite watering, it's possible that you may have a problem with disease, caused by microscopic living organisms. These include bacteria, fungi, and nematodes, among others.
It's better to water “deeply and infrequently,” Cutler says. About a third of an inch every two to three days is a good goal. Why is this so? Turns out your lawn is not unlike your kid: pampering it in the short run doesn't do it any long-term favors.
Watering deeply and infrequently helps your lawn grow deeper roots so it can better compete with weeds. Frequent, shallow waterings encourage shallow root growth.
In times of extreme heat, it is vital to water your lawn for about 30 to 45 minutes daily. Once the temperatures drop below ninety, you can cut back to watering three to four times a week, until that blissful thunderstorm comes and quenches your lawn's thirst!
Water Early
Cooler temperatures and subtle breezes help to keep evaporation slowed down. Early morning watering is also recommended as watering your lawn during hot parts of the day can add stress to your grass.
Water grass between 6 am to 10 am early in the morning which is the coldest part of the day to reduce the chances of fungal problems and allow the water to soak within the day. On the contrary, watering when the sun is at its peak and temperatures are high means that water evaporates quickly rather than being absorbed.
Watering on a hot summer afternoon is a horrible idea. The liquid will evaporate too quickly and may not reach your grass's roots, so heat and irrigation shouldn't go together. Instead, the best time to water grass during summer is in the morning. The ideal time for morning watering is before 9 AM.
Don't water everyday.
The more shallow your grass roots are, the less hearty it will be in hot weather. Instead water about two times per week for longer periods of time.
During extremely hot weather (daytime temperatures above 90F and nighttime temperatures above 70F), try to water daily or every other day. In a 10x10-foot garden, this would mean giving your plants 8 to 9 gallons of water each day.
Fertilize Your Lawn
A big part of knowing how to make your lawn greener is choosing the right fertilizer. Lawn fertilizer contains nitrogen, phosphorous and potassium. These nutrients support the grass. That way, it grows strong from the roots and stays green, healthy and lush.