How to Increase Humidity for Your Plants

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Most homes and offices have surprisingly low humidity, but many popular houseplants come from tropical regions where the air is rich with moisture. During summer and winter, when air conditioning and heating dry out our spaces even further, humidity-loving plants like Calatheas, ferns, and Stromanthe can start to show stress through crispy, browning leaf edges. The good news is that raising humidity for your plants is simple. Here are the best ways to increase humidity and keep your plants thriving year-round.

At Léon & George, our master gardeners have spent nearly a decade growing premium plants and helping thousands of plant parents nationwide, so the guidance here comes straight from hands-on experience.

Which Plants Need Extra Humidity?

Not every plant needs a humid environment, but tropical houseplants almost always appreciate it. Calatheas, ferns, Stromanthe Triostar, and many aroids naturally grow under rainforest canopies where moisture is constant. Common signs that a plant wants more humidity include brown, crispy leaf edges, curling foliage, and slowed growth, especially during the dry winter months. If you're seeing these symptoms despite proper watering, low humidity is often the culprit.

Increasing humidity for indoor plants

How to Increase Humidity for Your Plants

There are several easy ways to raise humidity in your home or office:

  • Mist your plants. Misting a few times a week adds a quick boost of moisture and doubles as a calming ritual. A fine-mist sprayer works best, applied to the foliage in the morning so leaves can dry through the day.
  • Use a humidifier. For consistent humidity all day long, a small humidifier near your plants is the most effective option. You'll need to refill it regularly, but it benefits both your plants and your space.
  • Group plants together. Plants naturally release moisture through their leaves, so clustering them creates a humid microclimate. Group plants with similar needs, such as several Calatheas, for the best effect.
  • Use a pebble tray. Place your plant's pot on a shallow tray filled with pebbles and about an inch of water. As the water evaporates it raises the humidity around the plant. Make sure the pot isn't sitting in the water, which can cause root rot, and refresh the water periodically.
  • Keep plants away from vents. Air conditioning and heating vents blast dry air that quickly dehydrates foliage. Move humidity-loving plants out of the direct path of any vents.

Mimic Their Natural Environment

The key to keeping humidity-loving plants happy is recreating the conditions they evolved in. Pay attention to how your plant responds, adjust your approach with the seasons, and you'll be rewarded with lush, healthy foliage all year.

Make Misting Effortless

For humidity-loving plants, a dedicated mister turns a daily routine into something quick and enjoyable. Our Watering Can & Mister combines a fine mister and a watering can in one tool, so you can hydrate the soil and humidify the foliage in a single step.

Frequently Asked Questions

How do I know if my plant needs more humidity?

The most common signs are brown, crispy leaf edges, curling leaves, and slowed growth, especially in winter. If your plant shows these symptoms despite correct watering, low humidity is usually the cause.

What is the best way to increase humidity for plants?

A humidifier is the most effective and consistent method. Misting, grouping plants together, and using pebble trays also help, and combining several methods works best for very thirsty tropical plants.

Does misting actually raise humidity?

Misting gives a short-term boost and helps clean the leaves, but it evaporates quickly, so it's best done regularly. For lasting humidity, pair misting with a humidifier or pebble tray.

What humidity level do houseplants need?

Most tropical houseplants are happiest at around 50 to 60 percent humidity. Many homes sit well below that, especially in winter, which is why humidity-loving plants often need a little help.

Which plants need the most humidity?

Calatheas, ferns, Stromanthe, and many aroids crave high humidity. Plants like succulents, snake plants, and ZZ plants are perfectly happy in average household humidity.