Best humidifier for plants. A Definitive Guide

Integrating greenery into your home is a fantastic method to add life to your home. Although it may be a surprise to many homeowners, many house plants are benefited by increased humidity. The safest way to do this is to use the best humidifier for plants. This is particularly true in the case of those who reside in a dry, cold environment or have an exotic plant.

You can certainly place your thirsty plant in your bathroom, where they absorb the steam from your shower, however, experts suggest purchasing humidifiers to control the humidity inside your home.

“Humidifiers are an excellent option for plant parents who want to help mimic the natural environment of most plants,” Alessia Resta, a plant blogger and co-founder of the blog Apartment Botanist describes. “They add moisture into the air, allowing for plants to absorb that moisture through their pores. I love using my humidifier daily, as it keeps the plants looking lush; the additional moisture helps when new leaves are unfurling, so they don’t get stuck or snap.”

The Best Plant Humidifiers

Humidifiers are also helpful to people suffering from dry skin, sore throats and other problems that can arise in cold weather, but picking the right one could be difficult, particularly when you’re not familiar with humidifiers.

This chart was designed for the sole purpose of assist people in locating the best humidifier by comparing the most important attributes of a few models. best plant humidifiers on the market.

Honeywell HUL520B MistmateHoneywell-HUL520BUltrasonic Cool Mist Humidifier6 litersto 50 Hours
Everlasting Comfort Everlasting-Comfort-Ultrasonic-Cool-Mist-HumidifierUltrasonic Cool Mist Humidifier6 litersto 50 Hours
Pure Enrichment MistAirePure-Enrichment-MistAireUltrasonic Cool Mist Humidifier1.5 liteto 16 hours
LEVOIT Humidifiers LV600 LEVOIT-HumidifiersWarm and Cool Mist6 litersto 50 hours
Vicks Vicks-Warm-Mist-HumidifierWarm Mist Humidifier6 liters to 24 hours

What Is Humidity?

It’s crucial to understand what humidity means and why plants need greater or lesser levels of it. With this knowledge, we’ll be in a position to tailor our plant’s environments to help them thrive.

In its most basic sense, humidity refers to the quantity of water vapor present in the air.

There are two definitions of humidity:

The relative humidity is the amount of water vapor the air is now holding compared to the amount it could hold at a specific temperature.

Absolute humidity: How many gallons of water per cubic meter air.

The greater the temperature of air in a certain space, the greater amount of water vapor it’s able to hold. This is the reason that those plants that need high humidity usually require higher temperatures, too. they are inextricably linked. Here are some examples of cultivating environments to consider:

  • Desert Air is hot, low humidity due to the low availability of water
  • Arctic Cool, high water availability, but low humidity

If I had said the fact that warm air “holds” more water, this wasn’t correct. Warmer air is what causes water to evaporate more quickly and creates greater water vapor in the air.

Why Do Some Plants Need Higher Humidity?

The evolution of plants has allowed them so that they could adapt to the natural environment. In regions in which high humidity is the norm the majority of plants responded by decreasing the water content, their leaves could hold. Like succulents who adapted to hold lots of water within their leaves, the plants that were native to high humidity areas adapted to perform the opposite. Certain plants don’t also have strong root systems, therefore they don’t get large amounts of water from the soil.

In addition, epiphytes are the plants that take in all the water they require from the environment around them and therefore have to be surrounded by high humidity to survive.

Common Humidity Levels For Houseplants

Each plant is unique and needs different amounts of moisture. Here is a general guideline for houseplants

  • Orchids – 40-70%
  • Ferns – 40-50%
  • Other houseplants: 40-60 percent

Do I Need A Humidifier For My Plants?

The most efficient way to test this is to examine the plants with a magnifying lens. Check the leaves for evidence of dryness or spots that have wilted.

If you are unsure if you will require an air humidifier for your plants, think about the following factors:

  • What kind of plant do you have in your garden?
  • How big is your indoor garden?
  • Are you in a dry environment or near water sources like oceans and lakes?

All of the questions can help you determine how much humidity your plants require and the best one to purchase.

What Type Of Plant Are You Growing?

This is the primary element in determining whether you require an air humidifier. Plants with strong, sturdy leaves like succulents can have no problem with extra humidity. However, plants with thin and delicate leaves tend to be more susceptible to dry air.

Where Do You Live?

In many areas being in areas without plant, humidifiers can worsen plants their growth rates.

If you live in a dry climate plants require additional moisture in order to flourish.

If you reside in a tropical climate with lots of rain, then you may need to less humidify often , but be alert.

How Big Is Your Indoor Garden?

Size of the yard is the primary element when it comes to deciding on the best humidifier to purchase. Large spaces are better provided by cold and warm mist humidifiers. Smaller rooms are better served by tablestop as well as ultrasonic models.

Types of Plant Humidifiers

Low humidity can help bacteria and viruses spread more quickly and causes the plants to dry up quickly. The high humidity, on other hand, could cause an increase in mold growth as well as dust mite attack and the growth of bacterial species.

Certain humidifiers provide cold moisture some boost humidity that is warm. Learn about the various kinds of humidifiers, and then choose the one that best meets your requirements and needs.

Comparative study of three kinds of humidifiers

types of humidifiers
Types Of Humidifiers

Warm Mist Humidifiers

Warm mist humidifiers are able to heat water and fill a room with warm humidity. It’s great for fighting the growth of mold or bacterial on plants as well as inside the room. It is also a great option to plants during the winter months.

They have an heating chamber that heats the water, releasing transparent, purified mist. But, they’re usually regarded as unpleasing because they create the sound of gurgling while making the boiling water.

The benefits of warm mist:
  • Boiling water will reduce the growth of microorganisms (you have to still wash the humidifier regularly, though!)
  • Excellent output in humidity
Contradictions Of warm mist:
  • Expensive to run
  • Boiling water may pose an enigma

Ultrasonic Humidifiers

Ultrasonic humidifiers make use of vibration to create cool, visible mists in the space. They’re not expensive but give excellent outcomes. The most appealing aspect? They’re silent, unlike other devices.

They don’t cause any noise or disturbance while providing moisture to the indoor air. The disadvantage is that they are more likely to provide higher levels of humidity that aren’t needed at times.

The pros of ultrasonic humidifiers:
  • Super-quiet operation
  • They consume less power as compared to warm mist or evaporative models
  • No filter to replace, and hot water not to be concerned about
Cons for ultrasonic humidifiers:
  • Can produce mineral dust
  • The replacement cartridges are an added cost

Evaporative Humidifiers

They use airflow to produce water vapor which releases a transparent moisture output inside the home. They come with the wicking filter, as well as an air-flow fan that assists water to evaporate extremely quickly.

How a humidifier works

They’re also regarded as to be noisy or irritating. Evaporative humidifiers require regular maintenance to ensure the most effective outcomes. They don’t create heat, which makes them ideal for homes with children or pets.

How does an evaporative humidifier works source

Pros disadvantages for evaporative humidifiers:
  • There is no risk of boiling water
  • Filter filters trap some contaminants
Cons disadvantages for evaporative humidifiers:
  • It can be loud
  • The tendency is to be bulkier and larger.
  • Filters replacement is an additional cost

5 Best Humidifier for Plants Reviews

1.Best Humidifier for Small Rooms

Honeywell HUL520B Mistmate Cool Mist Humidifier

Honeywell HUL520B Mistmate Cool Mist Humidifier

Because of its compact size, this cool mist humidifiers don’t take up too much space or consume excessive space. If you have to clean the countertop or table The easy-to-grab handle makes moving your humidifier easy.

A dial for output that can be adjusted allows you to choose the appropriate amount of mist to your plants. Be prepared: You might be shocked by the amount of mist small in size can create!

However, even though the Mistmate produces a thick mist, it’s not equipped with the ability to disperse the vapor across a vast area. The best results will be achieved using the humidifier in a tiny space that is growing.

On the lowest setting you could get as much than 20 hours running time, which means you’ll be able to expect to refill your tank less frequently. If you’re looking for an intense mist, you should plan to fill your tank within 50% of that time.

Evaporative humidifiers produce water vapor by a fan moving air through a absorptive filter. The fan makes some additional noise however it doesn’t go up significantly over relaxing white sound.

A thing to keep in mind The humidifier does not have an air filter that is great from a practical and maintenance aspect. This means that any minerals present in the water will make their way into your home as small white dust.

If you plan to utilize tap water with this device, demineralization tablets are a great option. Purified water can be purchased as an alternative option.

  • Impressive mist production
  • Handle for easy transportation
  • Ideal for small spaces
  • Easy to disassemble to refill and clean
  • Produce white dust
  • Very quiet

2.Best Humidifiers for Large Room

Everlasting Comfort Ultrasonic Cool Mist Humidifier 6L

Everlasting Comfort Ultrasonic Cool Mist Humidifier 6L

If the plants in your home are located in a wide, open space, you are aware of how difficult it is to attain the perfect relative humidity. This humidifier might provide the solution to your concerns.

The humidifier makes the most of its tank that holds 6 liters that can produce up to 270 mL water vapor per hour, that’s sufficient in order to increase humidity in spaces up to 500 square feet.

You’re not limited to running only on the most mist setting. The dial that rotates located on its front is extremely user-friendly, and setting the optimal humidity level is a quick job.

The mist is released out of the outlet nozzle in two streams. You can turn the nozzle around so that it directs the spray exactly where you want it. Although this model is the most powerful mist output capability of any choices that we have reviewed It also has the longest running time, lasting for up to 50 hours before refills.

One complaint can be the transparent plastic, which prevents the user from checking their water level on a single glance. There’s a level indicator on the other side of the panel, but it’s tiny and difficult to spot, especially at the distance.

  • Exceptional mist output
  • Ideal for vast areas.
  • Super long runtime
  • Creates almost no noise
  • It is challenging to keep track of tank levels of water.

3. Best Low-cost Humidifiers for Plants

Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

(Best Plant Humidifier at Amazon)

Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

This Pure Enrichment MistAire, a humidifier that cools with a the capacity of running for 16 hours. It allows you to finally get peace of mind while your plants are getting the humidity they require.

I am a fan of I like this ultrasonic humidifier because it’s super-versatile. It can be used for children, plants pets, electronics as well as upholstery and fabrics. It comes with low and high speed settings.

This makes it simple to alter the direction of mist and speed according to your preferences. It also features a 1.5-liter water tank and optional night light to ensure maximum comfort.

The most appealing aspect? You don’t need to be concerned about the security of your home. The device shuts off the level of water is low or when the tank is removed due to the auto shut-off.

The package comes with disk cleaning brushes, AC power adapter, as well as a manual. The humidifier comes with a 5 years of warranty and many positive reviews on the internet.

  • All the essentials are included
  • A great option for small rooms.
  • This is great for both the plants and people.
  • Lightweight and easy to maintain
  • Makes sure that all plants are healthy and happy
  • Limited use
  • Leakage problems
  • Poor design

4.Best smart humidifiers designed for Plants

LEVOIT Humidifiers Large Room 6L Warm and Cool Mist

LEVOIT Humidifiers Large Room 6L Warm and Cool Mist

Settings, sensors and the huge water tank of this LEVOIT model allow the user to have a customized control over the space’s humidity levels, adjusting the humidity according to pre-set levels. It is equipped with a remote that lets users adjust the settings from their desk or bed.

Other noteworthy features include cool and warm mist dispersion as well as an aromatherapy feature that can be used to use essential oils, and extremely quiet operation. The unit is able to provide the humidity needed for areas as large as seventy-three square feet and can run with a single tank of water for 50 hours in a continuous manner. For those who prefer following a set schedule the timer can be set to 1 to 12 hours to provide the right amount of time for houseplants.

  • It comes with a remote
  • Cold and cool mist options
  • Many settings to select from
  • 1 tank can last for several days
  • The tank is filled with water and can result in leaks

5.Best Warm Mist Humidifier for Plants

Vicks Warm Mist Humidifier

Vicks Warm Mist Humidifier

We have an warm mist humidifier from the classic Vicks brand that has earned a reputation for high-quality, durable products.

The warm mist humidifier for plants produces a dense somewhat warm vapor which can make to make your tropical plants feel right at in their own.

A tank that is fully filled can produce an average of 24 hours worth of mist and you can select between low and high-output settings. The highest setting creates a dense mist, which is likely to leave a room with dripping walls. this model is ideal for rooms that are medium-sized in size.

One great benefit to warm mist humidifiers is that they stop the growth of bacteria without the need for filtering.

Warm mist humidifiers are equipped with an internal heater that heats the water until it reaches the point where it is at its natural evaporation. The majority of bacteria cannot withstand in such temperatures and Vicks claim that the humidifier kills 95 percent of water-borne bacterial infections.

If you’re keeping up with your regularly scheduled maintenance, it shouldn’t be a problem to face problems cleaning your tank and its outer layer.

However, keep in mind that heating plates requires regular maintenance. Minerals are likely to build up fast in the tank if it is filled by using tap water. This could lead to thereby diminuting mist output or shortening the time of the unit’s.

  • It blocks the growth of bacterial colonies.
  • No filter to make changes
  • Quiet operation
  • Excellent mist output
  • Heating element requires mai

Features That Make a Humidifier Good For Plants

Humidifiers are designed for humans and not for plants, therefore there are some aspects that aren’t ideally suited to our indoor plants. But, here’s the thing you should be looking for when selecting the best humidifier that will benefit your plant.

  • Run Time: At least 12 hours of running time, and best longer than 24 hours. You don’t want to refill it continuously.
  • Simple design – You’ll use your humidifier more often than others humidifiers, therefore it should be simple to clean and maintain.
  • Small and beautiful Small and Attractive However, I enjoy admiring the well-designed and compact humidifiers!

These rules are out of the window when you are trying to improve the humidity of a bigger area like an outdoor greenhouse. You’ll need foggers or misters to help humidify an area of this size.

How to Best Use Your Humidifier

It’s not enough just to place the humidifier in your backyard and then turn it on and expect your plants prosper. You must create an environment that’s conducive for high humidity as well.

A proper airflow is essential in particular because many diseases are thriving when they are in high humidity environments. If you allow water to condense and settle over your plant, then you’re causing leaf spot fungus, as well as various other ailments.

Here’s a basic set-up to use in high-humidity areas:

  1. A top-quality humidifier for plants
  2. A fan to improve the circulation of air.
  3. A tray that is filled with pebbles and water, to capture the extra water
  4. A monitor for humidity and temperature to monitor the levels

For the question of where is the best place to put a humidifier, you can read the article best place to put humidifier in a house.

Is A Warm Or Cool Mist Humidifier Better For Plants?

You may be wondering if it matters whether your humidifier emits mist that is warm mist or cold mist. There isn’t any difference.

The majority of plants can be satisfied with the help of a warm mist humidifier.

But, you must remember that you need to keep a mist temperature set at 70°F. If not, they could be prone to dying due to the heat generated by the soil and their pot when paired with a hot humidifier.

Maintaining Your Humidifier

A common sense rule of thumb is to cleanse your humidifier every few times per month. Since you’ll use frequently, you’ll experience an accumulation of salt, fungus or mold buildup faster than others.

To clean, you need to take apart the humidifier and then soak the components in a solution of vinegar and water.

What to Look For in the Best Plant Humidifiers

All of the humidifiers we’ve examined are fantastic choices, but which is best for you?

Here’s a rundown of different aspects, and how you can decide which features you require:

Appropriate Output for Your Room Size

The size of your expanding area is the most efficient method of narrowing the search for a humidifier.

Because a space that appears smaller to one might be huge to someone else take these measurements to get an idea of the size:

  • Small rooms: up to around 200 square feet
  • Medium rooms: 200-400 square feet
  • Rooms with large rooms: more Than 400 square feet

The smallest rooms are the primary issue with regard to this. The excessive humidity could cause unsightly and hazardous mold growth in walls or other home structures.

Make sure that the home’s relative humidity below 60 percent, and place your humidifier at minimum a few feet from the walls or any woodwork.

Larger spaces are more manageable. Make sure you place the humidifier near your plant in order to focus the water where it requires it.

Automatic Shut-Off

The humidifier that is running without liquid in it can be an electrical safety risk as well as an unneeded drain on power.

To prevent such a scenario from occurring, many humidifiers are equipped with an automatic shut-off function. A sensor within the tank of the reservoir monitors the level of water and shuts off power if the levels drop to low.


Do you remember the clunky, loud humidifier from your youth? The constant drip sound could be the first thing that comes to mind.

If so you are worried, don’t fret! Modern humidifiers have made significant progress in the past couple of decades, and some models are silent.

Evaporative models are considered to be the most outdated models, and their mist-producing internal fan produces the most noise amount. However, it shouldn’t get to the point of extremely annoying for most people.

If quiet operation is high on your list of priorities, ultrasonic models are your best option.


While a humidifier won’t be an expensive purchase however, it’s important to know what to get from the manufacturer should you encounter problems.

Under normal conditions of use 1 or 2 year warranty is the most popular however, there are a few companies offer longer warranties.

Easy to Clean

Because a humidifier is an item with a lot of moisture and mold you’ll need to keep it on a regular basis to ensure its efficiency and safety.

Choose a model that’s easy to remove. A simple design will reduce the temptation to leave the tank half-full in a secluded spot, forming an overgrowth of mineral build-up or mold.

Check the instructions of the manufacturer for specific instructions about how to clean your humidifier. The video below includes a lot of useful tips for generalized sanitation and cleaning.

Create a routine every week to clean the reservoir tank using the use of a natural, mild anti-fungal and antibacterial substance. White vinegar is simple, efficient and affordable and therefore a good option here.

It is also possible to add vinegar to the tank and allow it to sit for a bit. This can break down minerals that might remain from drinking tap water.

If you’re an auditory learner This video by Clean With Confidence is a fantastic (and engaging!) job of showing the process of cleaning:

Easy to Transport

It’s not an issue for every homeplant parent. It’s something to consider in the event that you:

  • Transfer your plant life from one place to another during the season.
  • The only time you should use the humidifier is for a short period of time and then get it to go away.
  • Do you want to provide a moisture an extra boost to the plants in different areas of your house.

If you’re planning to relocate your humidifier, an encapsulated model that has a tank that is compact is the most ideal choice.

This Honeywell cool mist humidifier HUL520B that we examined in our spot 3 also comes with an inbuilt carrying handle, making it an excellent choice for those searching for the top in mobility.

Humidistat Display

A humidistat is a screen that displays the present relative humidity. This is an excellent feature, especially when working with smaller areas that can easily become damp.

Alternatives to Electric Humidifiers

Do you have a single plant that is prone to humid conditions? Or would you like to make use of an energy-free method?

If yes you are, then a humidifier isn’t the only option to add humidity to the air.


An old-fashioned spray bottle can be a fantastic alternative to small-scale humidification.

  • Make sure you lightly spray the leaf’s underside also.
  • Make sure your plants get just enough mist to make tiny droplets that sit on the leaves’ surface

How often should you spray your plants?

It depends on the particular needs for moisture. Plants that are from humid regions may prefer frequent misting while those that live in less humid environments prefer a regularly scheduled misting.

It may be necessary to play around for a while to determine the ideal misting time. Whatever frequency you decide to use be sure to start the process early in the morning, so that your plant can have all day to absorb the moisture prior to the darkness sets.

Make your own humidity tray.

Make the most of the natural process of evaporation by placing a tray of water close to or beneath your plant.

This technique only enriches the air around the plant, therefore it’s a fantastic option for small spaces.

Additionally by adding tiny pieces of sand in your humidity tray can help to keep the evaporation going in a steady manner. It’s pretty too!

Common Plant Humidifier Questions Answered

Does a plant get too much humidity?

“There is such a thing as too much humidity, especially inside our homes,” according to Pangborn. “They’ve evolved outdoors, where wind keeps fungal issues at bay. In our homes, the combination of too much humidity and not enough airflow can result in a fine, fuzzy mold on the surface of leaves and flowers or black rot developing on leaves or stems.” The author also points out the fact that too much humidity can result in the destruction of floors and furniture and health-threatening microbes as well as mold growth.

Resta says, “Make sure if you are increasing the humidity that you also balance with airflow. You don’t want pooled water on your leaves or plants to be sitting in water. If you are limited with light or affected by the lack of light during the winter, I suggest investing in grow lights.”

How long should the humidifier be running for? Do the requirements vary depending on the plant?

The optimal time for running a machine is based on a variety of factors, such as the kind of plant you own, the size that the space is, as well as the temperatures in the room, as well as airflow features like fan use, drafts, and the circulation of your air conditioner or radiator. “Aim for an average humidity between 50% to 60% for your humidity-sensitive plants,” Pangborn suggests. “The best thing you can do is to get a humidity meter and experiment with how often and how long you need to run your humidifier.”

When is the best time to use an air humidifier?

“Stick to running your humidifier during the morning and early afternoon only,” Pangborn advises. “It’s important to allow any moisture on the leaves to evaporate before night falls.” This is because wet leaves could result in fungal infections which cooler temperatures can encourage.

If you already have a humidifier that you use during winter’s cold seasons, you can keep it running and then choose one of these when you’re looking to keep those tropical plants even happier.

How To Raise My Plant’s Humidity Without A Humidifier?

Can you also make your home more humid without an air conditioner?

Yes! There are a number of various methods to increase the humidity of your plants without an air humidifier.

  • Another option is to use stones made of clay or pebbles that come from the outside of your planter. The process releases water vapor that builds up over time and then escapes into and into the dry air inside. The process can take about two weeks, meaning it’s not as rapid as an electronic humidifier. If you’re patient, this method can be extremely efficient.
  • There are other ways of making diy projects made from plastic bottles. Cut holes in one side and seal them to the top. When you fill these containers with tap water that is boiling Their interiors get hot and transform into dense steam! This is why it’s not suitable for humidifying a large space. The water evaporates very quickly which means you’ll need to change with hot tap water every time.
  • Another option that is popular is to put a plant within the pot. Pick a single or two sizes larger than the pot used for the houseplant. The pot should be filled with water and then place the houseplant in the larger pot. Be aware that the bigger pot must be waterproof to stop the leakage. It is also possible to place sphagnum mounds within the space or make use of organic peat pots. When the water evaporates, the sphagnum moss drys out. The humidity level rises.
  • The simplest and least expensive method to boost the humidity of your air can be to mist plants using a fine mist of water. If you are misting plants, it’s best to transfer the plants to a tub or sink. Since moisture can harm furniture made of wood and soft furnishings.

Can I Use An Oil Diffuser As A Humidifier?

They’re not intended to function as humidifiers. They perform admirably at what they’re designed to do.

Essential oil humidifiers aren’t harmful to plants. However, they aren’t capable to increase indoor humidity levels. They’re better used to provide an alternative source of scent, not as being a complement to other types of humidifiers.

Is A Vaporizer The Same As A Humidifier?

Humidifiers release cool, refreshing water to form fine mists of air. Vaporizers start by boiling water, and then release steam. It is important to know this: the American Academy of Pediatrics (AAP) suggests the use of a humidifier that is cool.

Final Thoughts

There’s no shortage of great choices when it comes to selecting the best plant humidifiers!

As a summation These are the most important things to consider when purchasing a humidifier:

  • Your expanding area
  • The amount of moisture your plants require
  • How often do you need to replenish your tank?
  • Your budget

Consider your requirements and then look over the specifications of each model. Choose one you are confident about and expect to enjoy flourishing, healthy home plants!

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