Do plants need darkness?

Plants, shrubs and trees use sunlight for photosynthesis during the daytime, but at night they need darkness to regenerate a key compound - phytochrome. Nighttime lighting can reduce vegetation's ability to properly create this compound.
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Can plants survive without darkness?

Unfortunately, there are no plants that can survive in complete darkness as they all require sunlight to create food through photosynthesis.
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How many hours of darkness does a plant need?

Plants need to sleep. They perform important respiratory functions at night. Seedlings should have at least 6 hours of darkness per day, and more mature plants at least 8-10 hours a day.
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Do plants need darkness and light?

Because dark reactions do not require the absence of light, plants will remain healthy when exposed to light 24 hours a day. There are some plants, however, that will survive but not thrive without darkness.
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Do plants need a break from light?

A: In general, you should not leave grow lights on 24/7. Plants need a light-dark cycle to develop properly. It's believed that they truly do “rest” during periods of darkness, and probably use this time to move nutrients into their extremities while taking a break from growing.
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Pimp your brain: What plants do at night



Are LED lights good for plants?

Offering low energy usage, low heat, and color optimized for growth, LED lights are the most efficient, effective, and customer-friendly way to grow plants at home than growing with fluorescent lights or incandescent lights.
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Do plants root better in light or dark?

So, do plant cuttings need light? Plant cuttings taken from a stem or leaf will need light to root. Root cuttings can be left in the dark until they grow shoots and leaves. Plant cuttings need bright light for photosynthesis so they can make energy for new growth.
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Does darkness help plants grow?

In a strict sense, plants do not grow faster in the dark; they grow slower. However, plants seem to grow faster in insufficient light due to rapid cell elongation. In other words, they don't grow faster, they simply stretch.
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Can plants live in artificial light?

Plants can grow in artificial light, but artificial light isn't as intense as sunlight and has less red and blue light than sunlight. LED lights used in special indoor growth chambers reduce the difference between artificial light and sunlight, which can help plants grow better.
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What happens when you put a plant in the dark?

That happens because plants need light for photosynthesis – without it, they start to wilt and eventually die because they will not have any food or nutrients. If left for so long, the leaves will eventually dry and fall off the plant.
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Do plants need to rest at night?

So, do plants sleep? I posed the question to several plant experts and the short answer is no, at least not in the literal sense. Plants don't have central nervous systems that seem to be key in what we think of as sleep in humans.
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Can you give plants too much light?

Plants cannot get too much light, but they can get too much of the heat energy that comes with the light. Photosynthesis and other plant growth processes will shut down when the environmental and tissue temperature gets high enough that all the water taken up by the plant is used to cool the plant tissue.
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What happens if a plant kept in dark continuously without sunlight for long time?

The plant will die within a few hours as it cannot produce food without sunlight. The plant will become dormant, producing neither oxygen nor carbon dioxide. The plant will use its stored food to obtain energy and survive.
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Does 24 hour light hurt plants?

The answer to the question is no, it is not recommended to leave your grow light 24 hours a day, because this will force plants to grow quickly. It is ideal to keep a grow light on for about 12 to 18 hours. Too much light in various growth phases can interrupt a weed plant's natural process of growth and dormancy.
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Do plants need sunlight or just light?

Sunlight is needed for plants to grow, acting as their food. Without food, nothing can survive (including plants). Some plants can adapt to low-light environments. Others can survive without light for a short while.
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Can indoor plants survive without sunlight?

If you're hesitant to grow indoor plants because your home lacks bright sunlight, don't let the shady conditions stop you. Most plants need some light in order to grow, but shade-loving plants can easily get by with indirect light, or even artificial light from regular light bulbs.
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Can I put a plant in a room with no windows?

Yes, you CAN grow houseplants with just artificial light and NO window!
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What can replace sunlight for plants?

Artificial lighting:

Fluorescent lights are by far the most economical and easy choice for houseplants. They come in tubes or compact bulbs (CFL) that screw into regular lamp sockets, and they're cool enough to put close to plant foliage.
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Can a plant survive in a room without windows?

Plants need sunlight to photosynthesize, produce flowers and fruit and for overall health. That being said, plants are also uniquely adaptable, and many vigorous specimens are perfect windowless houseplants.
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Do plants grow faster at night?

Most plants grow faster in the evening and at night than they do during the day. The same holds for pumpkins. In recent years, research on circadian rhythms in plants has shown that the night-time growth spurts of plants is under control of the plants biological clock.
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What makes plants grow faster and bigger?

Water, air, light, soil nutrients, and the correct temperature coupled with affection and care are the most basic factors to make a plant grow faster and bigger.
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Do plants grow faster with more light?

Sugars fuel plant growth, so the more light a plant is exposed to, the more energy it will create and the faster it will grow.
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Are glass pots good for plants?

glass is a considered to be chemically stable and should be waterproof. Roots don't care what kind of pot they are in if there is sufficient room for them. Many vases tend to be tall and narrow with smooth sides. This will promote the roots circling around the inside of the vase wall as they grow out.
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Do roots grow faster in the dark?

Roots grow in the dark soil to anchor the plant and to absorb mineral nutrients and water. It has been reported that light can penetrate less than several millimeters due to the rather high absorbance of soil (Woolley and Stoller, 1978).
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Does light hurt plant roots?

Light does not have any effect on plant roots and is required by plants to create food that will produce healthy growth for both the plant and the roots. Roots can become green as a result of algae growth on the surface as a result of overexposure to light.
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