Is Dehumidifier Bad for Plants? Why is Dehumidifier Good for plants?

Is Dehumidifier Bad for Plants?

Most people like to grow up the plants in their backyards and love to have plants on the working table, corner table…etc.

But growing plants indoor is not as same as outside. Because the conditions which we create artificially inside the room may not suites the natural plant growth. One of the artificial environments we create with an electrical device called, dehumidification. 

Have you ever thought of dehumidifier nature towards plants like, “Is Dehumidifier Bad for Plants?”

Research suggests, “A dehumidifier is good for plants in the case of a high level of humidity in the room. And it is bad in the case if the moisture level is low than the required level for plants. So, the use of the dehumidifier for plants always depends on the 2 conditions of moisture content in plants i.e. high and low”.

You might get confused about the answer if you are about to grow a plant inside the room. Like, How to grow a plant in the presence of a dehumidifier, Isn’t it?

Don’t worry, you have reached the article which will actually help you in the matters of an above-asked question…and many more…

is dehumidifiers are safe for plants?

Why is Dehumidifier Bad for plants? – Low level of moisture in Plants

Before starting the answer let us a little about how a plant maintains the moisture content. In general, a plant takes moisture in order to keep the plant alive like breathing. The plant takes the moisture through the leaves which have a number of pores named stomata.

These stomata will get open and close whenever they need the moisture which helps in plant growth. 

When it comes to the main point of a low level of moisture content in the air which happens when a dehumidifier is in on state. Whereas it removes all the moisture content in the air.

In this condition of the low moisture in plants, it opens the pores to draw moisture from the air, in other words, it called plant breathing/plant transpiration. Due to the low moisture level of air(created by dehumidifier), it cannot draw moisture from it and make the plant to suck the water from the roots, which is called osmosis.

The absence of moisture will result in plant growth damage with insufficient moisture intake from the air. So, this is how the low level of moisture effects plant growth.

Let’s move on to the other condition…

Why is Dehumidifier Good for plants? – High level of moisture in Plants

This condition tells that the level of moisture content is high in plants. Similar to the low level of moisture, the presence of high-level moisture in the plant also affects the growth of the plant. 

When the rate of plant breathing is increased, the high level of moisture in the air will not make the plant to evaporate the excess moisture which disturbs the plant growth. So, by having a dehumidifier we can remove the more moisture form air and let the plant evaporates its excess water, which results in plant growth.

This is how a dehumidifier is good in the case of high moisture in both air and plant.

OK….knowing about plant moisture content is fine…But how can we grow a plant in the presence of a dehumidifier?

How to grow a plant in the presence of a Dehumidifier?

To grow a plant in the presence of a dehumidifier, it’s better to know the ideal humidity where can a plant grow…

The humidity where the plant requires for healthy growth is 40% – 60% humidity in the air.

So, check the moisture content in the plant to adjust your dehumidifier in the room.

In order to check the moisture content in the plant, we need to check the moisture in the soil, as the plant gets moisture from the roots itself.

To check the moisture in the soil, moisture meters are available in the market. 

Check out the video for how to measure the moisture level in the soil

Or else you can check with the simple DIY.

DIY Plant Moisture Measuring:

For this, you just need a dry towel. Place the towel in the plant-soil and sit it for some time.

The level of moisture can be known by the amount of moisture in the towel.

Or you can check the moisture level, by inserting the dry wooden stick in the soil. If the stick comes out wet and muddy then the moisture level is high, if not the stick comes dry and clean then the moisture level is low.


Finally, we can conclude that the moisture level is based totally on the plant. So, try to avoid the plants with high transpiration as it leaves the room more humidify than normal. Following the things that we mentioned above grow up the plants with a low transpiration rate. Happy Planting!!!

Q) Do houseplants increase humidity? Yes, there are some plants like English ivy, which has a high transpiration i.e plant breathing, will evaporates water in the air and then results in increases of humidity level in a room

Q) Where is the best place to put a dehumidifier in a house? The best place to put a dehumidifier in the center of the room, because the dehumidifier works more efficiently where there is a high airflow. And also placing the dehumidifier in wet areas like bathrooms, basement, the kitchen is the best option.

Q) How do I keep moisture in my soil? In order to keep the moisture content in the soil, try to mix the moisture retention stuff like Humus rich compost up to 6 to 7 inches under the soil. This will retain the moisture content in the soil for a longer duration.

Q) How many years should a dehumidifier last? A dehumidifier can last for about 3 to 5 years when it is operated in the proper maintenance and circumstances.

Q) What is the best time to water the plants? To water, a plant early morning times and evening times are best. Watering plants in the presence of the hottest sun is the worst time to choose.

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