Can Indoor Plants Get Too Much Light?
We know light is essential for the growth of each indoor plant. But can indoor plants receive too much light? Does too much light harm them? I conducted some research to find out.
Indoor plants may suffer from too much light if we place them near a window with bright sunshine. Bright direct sunlight may be too much for some indoor plants to handle, and they begin to suffer. Some low light plants will suffer even more when placed in bright sunlight.
Especially since light is necessary for photosynthesis, I first wondered how it might harm plants. Also, what would be more detrimental to the plants, a short exposure or too much exposure over an extended period?
As I am aware you have many questions in your mind, I have researched everything thoroughly and answered all your questions. Just stay with me until the end, and we will cover all the doubts you have in your mind.
Understanding different aspects of lighting
In terms of lighting, you need to recognize two main factors: light intensity and light duration.
An intensity of light is the amount of light per unit area; it is usually measured in Lux or lumens. Either a spectrometer or a Lux meter can be used to measure the intensity of light.
In general, natural lighting is preferable to artificial lighting if it results in a shorter light duration. However, artificial lighting can cause problems for plants as well.
Because of intensely bright light, plants suffer. So that’s what we need to watch out for.
Light intensity is a crucial factor affecting your plant’s health. While exposed to bright light, a plant is also in contact with some heat.
There are a variety of ways that plants dissipate heat, including using the water in their leaves. An important practice among most indoor plants is to use the leaves’ reserves of water to eliminate excess heat.
However, this has a severe disadvantage for the plant. The leaves dehydrate much faster because of this, and as a result, the plant becomes dehydrated.
As well as photosynthesis becoming less efficient, the transpiration process of a plant becomes ineffective as gas exchanges are not efficient.
Besides this issue, you will also see leaf drooping, yellowing leaves, some leaves that burn and turn brown, and brown tips.
Also, too much heat can cause the soil to become dry and flaky, leading to dehydration in plants.
If we place an artificial source of light on plants, it won’t harm them, unless they’re exposed to it 24×7.
Indoor plants can be left in a natural light environment for an indefinite period. As in most places, natural lighting lasts for 10-12 hours; this will not have an adverse impact on a plant’s growth.
Nonetheless, plants also require rest, as their metabolic processes take place at night and play a significant role in their growth. The night is important for the metabolism of plants because it is important to their growth.
Nevertheless, there are some exceptions. According to a study conducted by Oregon state university chrysanthemums, poinsettias, and Christmas cacti need 12 hours of darkness to bloom and their metabolism to function at its best.
Consequently, the duration of light exposure most indoor plants receive is not crucial to their growth; however, exposure to artificial light for a lengthy period of time can slow their metabolism process, which will slow down their growth.
How to tell if plant is getting too much light?
As a general rule, plants are placed in three categories based on intensity of light needed, namely low light, medium light, and bright light.
Unfortunately, precise measurements of light intensity cannot be achieved without using some kind of equipment.
You can tell when your plants are suffering if you place them in too much light.
In our earlier discussion, plants placed in too much light will show certain symptoms of leaf damage as a result of too much heat.
You need to identify these early signs and adjust the light intensity by moving the plant or using a light filter like sheer curtains.
Now that we have that out of the way, let’s see which signs the plant is receiving too much light:
- Yellowing of leaves
- Droopy leaves
- Brown tips
- Leaves burn due to excess heat
- Stunted leaf growth
- Brown spots on individual leaves
- Wilting of new leaves
Can too much light kill a plant?
You can easily kill an indoor plant by providing it with too much light. If it receives too much light, it becomes dehydrated. Other signs include wilting new growth and damage to the foliage.
It is likely the plant will die if it is not moved to a proper place. Without water, it will not be able to photosynthesize, thus its internal functions cease, and the plant will eventually wilt.
If we move the plants to a more suitable place, we can still save them and help them recover, but if we do not, the plant is likely to wilt.
Therefore, it is imperative that you understand the light requirements of each plant and place them at an appropriate place to prevent damage.
Can plants grow under 24 hours of light?
Indoor plants do not do well if kept under a light 24 hours a day. Although light is necessary for photosynthesis in plants, they also require darkness for rest and metabolization.
In order to keep your plants at their healthiest, allow them certain hours of darkness to rest and metabolize. If they are kept under constant light, they will likely grow stunted, and in some cases may even start wilting.
How do you revive a plant that gets too much sun?
If your plants are scorched due to too much sun, we have to take measures to save them. But first, we need to determine whether or not they can be revived.
This will depend on the health of your plant. If only a few leaves and stems are damaged, then your plant is likely to rebound. However, if your whole plant already looks stressed, then it can be more difficult to recover.
Keeping this in mind, here are some steps you should follow:
- You can move the plant to a darker spot with low light intensity.
- Using sheer curtains or canopy will help you cut the light if there is no other area you can use.
- Trimming the damaged foliage is the next step, as that can’t be revived. Trimming will also release growth hormone in the plant.
- The plant should be misted once or twice each day.
- New growth should be on your radar.
You can expect your plant to come back into life, but you should be worried if it doesn’t due to another problem.
A houseplant can receive too much light. Yes, it is possible for a houseplant to receive too much light.
A plant can also die from too bright light in some circumstances. It is not the duration of the light that matters, but the intensity of it.
You should pay attention to the light requirements of the plant and place it appropriately.
If you are mistaken, it’s not the end of the world. Watching out for signs a plant gives and adapting its living environment accordingly is what usually saves a plant. Please let me know if you have any questions or if this article answers any of your concerns.