During the day, the sun readily evaporates this moisture, but nighttime watering allows the water to stay on the plant for an extended amount of time. They thrive on a morning soak because: Watering at night is not the best for your plants’ leaves or overall health. They are also found in the Virgin Islands and Puerto Rico. This answer and more after the jump! Subscribe to the "The Sapling" on the Davey Blog for the latest tips to keep your outdoor space in tip-top shape throughout the year. Morning is the best time to water. Understandably, with the roots taking up water and the leaves not expelling any, pressure builds. Similar to human respiration, plants exchange gases and moisture with the surrounding air using transpiration -- tiny holes, called stomata, open and close to release water vapor. All Rights Reserved. One of the most important and frequent garden chores is watering the plants -- some species require daily irrigation for the best growth. You know, because it’s tiny molecules of water vapour. A good way to direct the water to the plants is to dig a little trench around the plants and allow water to flow into it. Wet leaves and moist weather are perfect conditions for fungus. Water early in the day, so the plants have time to absorb it before the temperature drops at night. Spending time among the trees even reduces stress levels. Avoid watering disease-susceptible plants at night. View our. As a result, fungi and bacteria have a perfect haven for replication and invasion on the plant's surfaces. After a night time soak, leaves can stay wet for a pretty long time since they don’t have the day’s sun to dry them off. Evenings with calm winds also contribute to pathogen reproduction -- windy nights help the plants evaporate the standing water or knock the moisture to the ground. Water has a chance to soak into tree roots. © Copyright 2020 Hearst Communications, Inc. There are certain species of plant (for example the snake plant) which do produce oxygen at night, and are actually considered to help promote sleep because of this, so you can still get your bedroom plant fix without feeling paranoid your plant will one day kill you. But compacted soil prevents water from moving slowly into the topsoil. In the United States, they only grow on the Hawaiian islands, according to the U.S. Department of Agriculture. If water evaporates before it gets to the roots, you would only assume you should change to night watering. If you absolutely can’t water in the morning, the next best time is late afternoon, right before dusk. If you have any plants that are suffering from other ailments, like damaged stems, these pathogens may gain a stronger foothold in your garden and cause significant dieback. After a night time soak, leaves can stay wet for a pretty long time since they don’t have the day’s sun to dry them off. The key to watering at night is watering late enough to where the water won’t evaporate, but early enough to where your plants have time to dry to avoid disease. Here’s why. 1. Changes in light, food and watering techniques always carry the risk of having an adverse effect on a plant. ©2020 The Davey Tree Expert Company. However, some plants can uptake carbon dioxide during the night as well because of their ability to perform a type of photosynthesis called Crassulacean Acid Metabolism (CAM). Morning (Not Night) is the Best Time to Water Plants in Summer. One thing to be careful of if you water in the late afternoon is to make sure that the leaves have a little time to dry before night comes. Loose soil typically provides spaces for water to penetrate the ground in a uniform manner. Discover just how much water to give your trees each week. Im guessing you are talking about outside potted plants ? Before watering plants, check to see if your plant really needs it. When you water at night, the water sits on the leaves and stems of the plants instead of evaporating. This is because damp leaves at night encourage fungus problems, such as powdery mildew or sooty mold, which can harm your vegetable plants. One of the most important and frequent garden chores is watering the plants -- some species require daily irrigation for the best growth. DON’T water too frequently or too little. It is true that watering when the sun is out can cause scorching; on the other hand, although evening watering reduces evaporation, it leaves plants and the surrounding soil wet, or at least damp, at nightfall; besides providing fertile ground for diseases, this attracts more pests, particularly *slugs. Because there is no sun to evaporate the puddle, your plants' roots become suffocated from reduced air and moisture. Tree Service Experts Since 1880. Watering your plants from above, with a watering can or sprinkler system, causes the foliage, flowers and fruit to become wet. Therefore, it is important to pay attention to water temperature when watering your plants. Watering plants and near freezing temperatures send many gardeners into fits, worrying that the newly wet soil will freeze and injure roots. Because of this, damp leaves become extra vulnerable to fungal development. damp leaves become extra vulnerable to fungal development. Answered July 22, 2019 No. Watering at night is especially harmful if it is during the winter. It supplies them with a stash of water to get through the day’s heat. Water when the air temperature is above 40° F, and don’t water if there’s snow or ice on the ground. Luckily yes there are. View our Privacy Policy for more information. Here’s why. Don’t wet the foliage. As temperatures drop, the water frosts over and may harm plants that are frost-tender. If that's the case, watering at night will avoid spilling water on the leaves and potential marks on leaves caused by sun shining through the watcer drops and magnifying/burning spots. As long as you water early in the day, the water you give your plants can actually be protective against nighttime freezes. The soil may become water-logged instead of draining properly with help from the sun. The best way to water most plants is by applying enough to moisten the plant's entire root system, and then letting the soil dry out slightly before watering … If you have a busy daytime schedule, your gardening time may be limited to the evening and nighttime hours. Making the bed, walking the dog, packing a lunch—one of these things is probably part of your morning routine. Watering Plants At Night Isn’t Needed: Although the idea has been around for years, most plants don’t need extra care by watering them at night. In cooler climates, they must be grown indoors. The amount of water a plant needs depends on a number of factors, including the type of plant, its stage of growth, type of soil, weather and time of year. Any watering moisture on the plants at night cannot be expelled by the stomata. And the plants can sufficiently supply themselves with water before the next day’s heat. The truth is: watering at night is a bad idea. The tree study didn't address why the branches and leaves drooped at night, but it's likely related to the turgidity, or the internal water pressure within the tree, the researchers said. Because of this, damp leaves become extra vulnerable to fungal development. As a result, water remains standing on the soil surface. Although there is less evaporation at night, watering your garden at night may cause serious harm to your plants. Watering plants and trees in the morning is best for your plants–and good for your mental well-being. Instead, water during the day, when the evaporation and transpiration rates are at their best. As a result, moisture remains on the plant for pathogen infiltration, causing rot and other damaging injuries to the foliage and flowers. It leaves time to dry before nightfall, which helps prevent fungal diseases. Most transpiration activity, however, occurs during the day when the sun is shining. Here are 10 steps to ensure you water your garden just right without any wastage. Evening watering provides an average of 8 hours of darkness when the plants have sufficient time to absorb moisture from the soil. Watering plants early will ensure that they have sufficient store of moisture beneath the soil to withstand the heat of a hot summer day. Try to avoid watering late, especially if you live in a climate with humid nights. Too much, and the soil is soggy and the plants grow week, too little and they can die or produce poor crops. Why It Is Bad to Water Plants at Night. Watering at night is not the best for your plants’ leaves or overall health. Davey uses cookies to make your experience a great one by providing us analytics so we can offer you the most relevant content. Spending time among the trees even reduces stress levels. Trees and plants think so, too. This is a problem if night falls and your plants have wet leaves. Queen of the Night are tropical plants native to Cuba and Jamaica. Lastly, pay attention to water quality. Writing professionally since 2010, Amy Rodriguez cultivates successful cacti, succulents, bulbs, carnivorous plants and orchids at home. With an electronics degree and more than 10 years of experience, she applies her love of gadgets to the gardening world as she continues her education through college classes and gardening activities. Will It Kill Plants to Water Them Before a Freezing Night? By continuing to use this site, you accept our use of cookies. Those that believe cannabis plants should be watered at night argue that in a natural environment, precipitation does not fall when the sun is shining, due to cloud cover. By watering your plants at night. I am not a specialist doctor, but i am always trying to give my best to all my friends. But plants don’t transpire at night, and the roots carry on sucking up water. It is possible to create an artificial frost across your garden with nighttime watering. Maintaining a healthy balance when irrigating your garden is essential to thriving plants. Luckily, this to-do provides a moment of solitude and zen in your busy morning. When you water, the foliage of your plants will get wet. For example, standing water on foliage does not have a chance to evaporate in the evening. What may not be on the list is watering your trees. If your soil lacks an ideal friable texture, watering at night contributes to waterlogging. In fact drinking water before night have some many advantages. This is the perfect scenario for a fungus to form on your plants. Sign Up for Free Tree & Landscaping Tips! By continuing to use this site, you accept our use of cookies. Do not water your garden at night. Isn’t it so satisfying to gulp down a tall glass of water first thing in the morning? Wondering how much water your trees need in the morning? Apply water in the cool of the morning or evening when the wind is calm and water loss through evaporation is minimal. While at night, the plants uptake oxygen and release carbon dioxide, which is called respiration. Plants are finicky. A board or rock placed under the water flow will prevent the water from eroding the soil. During the colder months, it is critical to water your plants in the morning or early afternoon to ensure that the moisture moves into the soil efficiently before the night arrives. So, there you have it! If water sits on plant foliage for hours, it can encourage fungal diseases to attack leaves, buds, flowers, and fruit. Your plants' stem and crown may also be harmed from pathogens or rot if the water concentrates around each plant base. Some plants cannot tolerate chlorinated tap water, while other plants have a difficult time with soft water. Let’s talk about why and the reasons you should avoid watering at night. The Best Way to Irrigate a Vegetable Garden, Alberta Agriculture and Rural Development: House Plants: Watering, Washington State University Extension: Watering Home Gardens and Landscape Plants. In the current hot breezy weather it is probably best to water in the early evening. Plan on watering your trees in the morning, particularly on hot, summer days. Water in the morning. An alternative is to lay the hoses directly on the ground near the plant so the water goes where it is needed. The top of the soil can look and feel dry, even though it is quite moist just below the soil line. This is detrimental to your plants because it leads to mold and fungal growth around the roots and on the stems and leaves. An easy test: Stick your finger into the soil all the way to the second knuckle. Many also state that if water droplets resting on the leaves are exposed to heat and bright light, they may act as “magnifying glasses” and burn the leaves. Drinking water at night is not bad for our health at all. Water has a chance to soak into tree roots instead of being evaporated by the heat. How peaceful is it to stand under your towering trees, listen to the falling water and see the morning sun shine? If it feels dry at your fingertip, your plants need water. Davey uses cookies to make your experience a great one by providing us analytics so we can offer you the most relevant content. There are a few exceptions, but 99% of your plants, indoors and out should only be watered during the day. Watering at night encourages dampness, which is a prerequisite for fungal attack. 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