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Home » Indoor Gardening » Houseplants

5 Best Humidifiers for Houseplants + DIY Ways to Humidify

Last Modified: Nov 17, 2022 by Lauren Landers · This post may contain affiliate links · 1 Comment

5 Best Humidifiers for Growing Healthier Houseplants pinterest image.
5 Best Humidifiers for Growing Healthier Houseplants pinterest image.
5 Best Humidifiers for Growing Healthier Houseplants pinterest image.
5 Best Humidifiers for Growing Healthier Houseplants pinterest image.

During the winter months, fireplaces, space heaters, and other heating elements can dramatically reduce humidity levels in your home. Although you may not notice it, the dry air can spell disaster for your houseplants, particularly if you keep humidity-loving tropicals.

A home humidifier boosting the humidity in a room full of plants
A room humidifier can be good for your health and the health of your houseplants, too.

Adding a humidifier to your grow room or houseplant collection is an easy way to increase moisture levels around your plants and prevent crispy leaves and leaf drops. Below are some of the top picks for the best humidifiers to keep your houseplants happy all winter long. In fact, these humidifiers work so well you may want to use them in summer, too, to combat dry air from air conditioning units!

Jump to:
  • 5 best humidifiers for growing healthier houseplants
  • 1. Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier
  • 2. AquaOasis Cool Mist Ultrasonic Humidifier
  • 3. Ultrasonic Cool Mist Humidifier by the Everlasting Comfort Store
  • 4. Decorative Stone and Ceramic Natural Water Humidifier by Bluestone
  • 5. Portable Mini Cool Mist Humidifier by MOVTIP
  • Cool mist vs. warm mist: Is there a difference?
  • Other tips for increasing indoor humidity
  • Frequently asked questions
  • Summary

5 best humidifiers for growing healthier houseplants

A small one-room humidifier nest to a houseplant
There are many options when it comes to choosing a humidifier for your home and your plants.

Although there are a number of excellent humidifiers on the market today, below are our top picks for humidifiers that work well for houseplants. We’ve included some good, all-purpose humidifiers, as well as an electricity-free option for anyone concerned about their carbon footprint. And, if you keep houseplants in your office, we’ve even included a mini humidifier that’s perfect for small spaces!

1. Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

Pure Enrichment MistAire cool mist humidifier
If noisy humidifiers give you grief, check out the quiet MistAire.
Sale
Pure Enrichment® MistAire™ Ultrasonic Cool Mist Humidifier - Quiet Air Humidifier for Bedroom, Nursery, Office, & Indoor Plants - Lasts Up To 25 Hours, 360° Rotation Nozzle, Auto Shut-Off, Night Light
Pure Enrichment® MistAire™ Ultrasonic Cool Mist Humidifier - Quiet Air Humidifier for Bedroom, Nursery, Office, & Indoor Plants - Lasts Up To 25 Hours, 360° Rotation Nozzle, Auto Shut-Off, Night Light
  • INSTANT DRY AIR RELIEF: Ultrasonic cool mist technology safely and quickly moisturizes dry air for up to 25 hours of continuous operation in medium to large rooms up to 250 square feet. Powerful mist...
Check Current Price on Amazon

One of the top-rated humidifiers on the market today, the MistAire Ultrasonic humidifier by Pure Enrichment, has everything you need. With a 1.5-liter water reservoir, it can run up to 25 hours without needing to be refilled. The tank is easy to fill, and it has high and low-speed settings and a movable nozzle for extra convenience.

Available in 3 sizes (small, large, and extra-large), the MistAire is also super quiet, so you won’t need to worry about noisy motors disturbing you.

2. AquaOasis Cool Mist Ultrasonic Humidifier

AquaOasis humidifier is recommended for large rooms
AquaOasis is a good choice for large plant rooms.
Sale
AquaOasis™ Cool Mist Humidifier {2.2L Water Tank} Quiet Ultrasonic Humidifiers for Bedroom & Large room - Adjustable -360 Rotation Nozzle, Auto-Shut Off, Humidifiers for Babies Nursery & Whole House
AquaOasis™ Cool Mist Humidifier {2.2L Water Tank} Quiet Ultrasonic Humidifiers for Bedroom & Large room - Adjustable -360 Rotation Nozzle, Auto-Shut Off, Humidifiers for Babies Nursery & Whole House
  • IMMEDIATE DRY AIR RELIEF! Want to eliminate the suffering from the terrible effects of dry air? No need to struggle with cheap flimsy and leaky desk humidifiers. This quality ultrasonic humidifier is...
Check Current Price on Amazon

Another wildly popular humidifier that will work well in grow rooms, the humidifier by AquaOasis has an even larger water reservoir, at 2.2 liters. Able to run continuously for up to 24 hours, the AquaOasis can handle spaces as large as 400 square feet, making it a better solution for larger rooms.

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The AquaOasis also has an automatic shut-off, so it won’t burn up its motor if you forget to fill the tank. And it’s nearly silent and has a fully adjustable nozzle, which can be directed straight at plants that need the most moisture. If you have a very large plant collection, this humidifier also comes in a bigger 6-liter size.

3. Ultrasonic Cool Mist Humidifier by the Everlasting Comfort Store

Ultrasonic room humidifier that runs for up to 50 hours without refilling
The best feature of the Ultrasonic is a large water reservoir and a long run-time before refilling is needed.
Sale
50-Hour Ultrasonic Cool Mist Humidifiers for Bedroom (6L) - Quiet, Filterless Humidifiers for Large Room w/ Essential Oils Tray - Small Air Vaporizer for Baby, Kids & Nursery - Everlasting Comfort
50-Hour Ultrasonic Cool Mist Humidifiers for Bedroom (6L) - Quiet, Filterless Humidifiers for Large Room w/ Essential Oils Tray - Small Air Vaporizer for Baby, Kids & Nursery - Everlasting Comfort
  • 50 Hours Without a Refill: The large capacity 6L (1.6 gallon) tank of our ultrasonic humidifier runs for up to 6 nights per fill. Unlike smaller cool mist humidifiers 2L and 3L capacities that require...
Check Current Price on Amazon

With a 6-liter water reservoir, this much-loved humidifier is another ideal pick for large rooms (up to 500 square feet) and big plant collections. Fully adjustable with multiple handy settings, this humidifier is very versatile, and if you only run it at night, you can refill it about once a week.

Unlike some of the other humidifiers on this list, this humidifier is a solid black, which will blend in well with most home decor. It also whispers quietly and contains an essential oil tray, so it can be adapted into a diffuser too. However, using it with essential oils isn’t recommended in plant grow rooms.

4. Decorative Stone and Ceramic Natural Water Humidifier by Bluestone

Humidifier balls and bowls require no electricity and no energy
What do we love about these sleek-looking humidifier balls? NO ELECTRICITY REQUIRED!
Sale
Humidifiers, Set of 2 Stone Decorative Ceramic Natural Water Humidifier, Non-Electric Battery Free for Bedrooms, Great for Babies by Bluestone
Humidifiers, Set of 2 Stone Decorative Ceramic Natural Water Humidifier, Non-Electric Battery Free for Bedrooms, Great for Babies by Bluestone
  • EASY TO USE- These hassle-free pair of decorative bedroom humidifiers by Bluestone can be used by any age. Simply pour water in the black bowl or on top of the clay sphere and start humidifying any...
Check Current Price on Amazon

If you don’t want to use electricity but you still need to add humidity to your indoor plants, you can’t beat the humidifier by Bluestone. Coming in a set of two, Bluestone’s humidifier adds moisture to the air via evaporation. Instead of noisy motors, simply fill up the ceramic bowl with water and allow the clay orb to wick moisture up into your room as needed.

Great for travel and also eco-friendly, these humidifiers look elegant, and they measure about 4 ½” wide, making them perfectly sized for plant shelves and other small spaces.

5. Portable Mini Cool Mist Humidifier by MOVTIP

Mini portable humidifier for office plants
Looking for an easy office humidifier for your plants at work? Check out this portable mini version.
Sale
Portable Mini Humidifier, 500ml Small Cool Mist Humidifier, USB Personal Desktop Humidifier for Baby Bedroom Travel Office Home, Auto Shut-Off, 2 Mist Modes, Super Quiet, White
Portable Mini Humidifier, 500ml Small Cool Mist Humidifier, USB Personal Desktop Humidifier for Baby Bedroom Travel Office Home, Auto Shut-Off, 2 Mist Modes, Super Quiet, White
  • 【NOTE】①Do not use essential oils,perfume, distilled water, which will cause the cotton swab to clog and the Humidifier to be unusable. ②Please make sure the cotton core has soaked a few...
Check Current Price on Amazon

Keeping plants in your office is a great way to improve indoor air quality and add some color to your workspace. But when the heat comes on in winter, offices can become stiflingly dry, and plant leaves may turn crispy. A mini humidifier, like the one by MOVTIP, is sized just right for a small office with just one or two indoor plants.

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This mini humidifier offers a number of handy features, including an automatic shut-off, two mist modes, and a quiet motor. It also comes in six different colors, so you can opt for a neutral white or add more flair to your desk with a more colorful model.

Cool mist vs. warm mist: Is there a difference?

A room humidifier with two mist spouts
The only notable difference between warm vs. cool mist humidifiers is the cost to run them.

When it comes to keeping houseplants well hydrated, it doesn’t really matter if you use a cool or warm mist humidifier. Both humidifier types will increase humidity around your plants. However, cool mist humidifiers are generally cheaper to run because they use less electricity.

That said if you already have a warm mist humidifier that you’d like to use near your plant setup, do it! It won’t harm your plants, and your houseplant leaves will appreciate the extra humidity.

Other tips for increasing indoor humidity

Plants in a glass terrarium jar
There are options for increasing plant humidity without having to use electricity.

If you don’t want to run a humidifier, but you still need to boost indoor humidity levels around your plants, there are other easy, electricity-free solutions like:

  • Pebble trays.

Pebble trays are shallow dishes or containers that are filled with pebbles or gravel and topped off with water. When placed under plant pots, pebble trays will help to increase the humidity around your plants without any electricity waste. Just make sure the bottom of your plant is above the water line to prevent waterlogged roots.

  • Grouping your plants.

Plants release water vapor during the photosynthesis process. As a result, placing plants close together will benefit all of your plants. When one plant releases water vapor, it will boost the humidity levels around the other plants.

  • Relocating your houseplants.

If you have a steamy bathroom, it could be the perfect place to hang your moisture-loving plants, like ferns or air plants. Not only will this benefit your plants but, as your plants absorb the humidity in the room, they can reduce the likelihood that mold or mildew will grow in the area.

  • Using an enclosure.

Some plants, like fittonia and Venus flytraps, simply like a lot of humidity. Keeping these plants in terrariums or glass cabinets can help regulate humidity levels and eliminate the need for a humidifier altogether.

Frequently asked questions

A humidifier used to boost indoor plant growth
What do you know about boosting plant performance with indoor humidifiers? What do you need to know?
How close should a humidifier be to a plant?

For best results, locate your humidifier about 4 to 6’ away from your plants. While this can vary some depending on the size of your growing space, moving your humidifier closer than 4’ may cause too much water to accumulate on plant leaves. Overly wet leaves can be a breeding ground for mildew, which can be damaging to your plants.

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How many hours a day should you run a humidifier?

Ideally you’ll want to run your humidifier about 8 to 12 hours a day. Running your humidifier constantly may cause too much water to accumulate on plant leaves and in the surrounding environment.

Do plants need humidity at night?

Plants actually prefer higher nighttime humidity levels. For this reason, if you’re running your humidifier only half of the time, set your timer to turn the humidifier on in the evening.

Does misting plants increase humidity?

Misting your plants temporarily increases ambient humidity, but it usually isn’t enough if you’re keeping humidity-loving plants. Additionally, you should never mist plants with hairy leaves, like African violets. Adding a humidifier to your grow room can simplify your plant care routine and works well for most houseplant types.

Summary

A woman peacefully sleeping next to an indoor humidifier
Adding humidity to your inside winter air can go a long way to keeping your home comfortable.

Humidifiers can help prevent dry and damaged leaves during the winter months. But with all the humidifiers available, choosing the right one can feel overwhelming.

We hope that this list gives you a better idea of features to look for when purchasing a humidifier. However, if you’re still struggling with maintaining proper indoor humidity levels for your plants, you may want to opt for less tropical species. A great place to start is this guide on the top cacti that will thrive in even the driest homes.

More Houseplants

  • 20 Self-Watering Pots and Planters for Busy People
  • Christmas Cactus After-Care: What About the Rest of the Year?
  • Can I Repot My Houseplants in Winter? (Yes, Here's How)
  • How Warm Does My Christmas Cactus Need to Be? (4 Tips)

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Comments

  1. Patrick

    December 07, 2022 at 9:14 pm

    Thanks, I finally bought one! I love mine from everlasting comfort. It’s modern-looking, very lightweight, and super easy to use. Just what I needed for bedroom.

    Reply

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