BY THE OPTIMIST DAILY EDITORIAL TEAM

With the chill of winter comes an increase in indoor humidity—fogged windows, damp air, and that unmistakable feeling of moisture hanging in your home. While dehumidifiers might seem like the go-to solution, did you know that certain houseplants can help absorb moisture from the air? It’s a phenomenon driven by a natural process called foliar uptake, where plants draw water through their leaves.

Plant experts Michael Clarke and Paris Lalicata help us discover the top houseplants that can help regulate indoor humidity levels, especially in moisture-prone areas like bathrooms or kitchens. Here’s everything you need to know about these green allies and how to care for them.

What is foliar uptake?

Before diving into the plants, let’s explore how they work. According to Michael Clarke, horticulture expert and founder of Yardwork, foliar uptake is the process where plants absorb water through their leaves and stems, often via tiny pores called stomata or directly through the leaf’s surface.

“It’s particularly common for plants that grow in areas with high amounts of fog or humidity,” Clarke explains, adding that it’s an adaptation that helps plants retain moisture during droughts. While the effect is more dramatic in their natural environments, tropical houseplants can replicate this process in our homes, especially in humid spots.

The top 5 houseplants that absorb moisture

1. Orchids

A timeless favorite, orchids—especially moth orchids—are not just beautiful but functional in high-humidity conditions.

“Orchids can take up water through their aerial roots and leaves under high humidity,” says Paris Lalicata, plant education leader at The Sill. In their natural habitat, orchids cling to tree bark rather than soil, absorbing nutrients and moisture from the air through their roots.

To keep your orchids thriving, provide them with bright, indirect light and water only when their roots turn silver instead of green.

2. Ferns

Ferns are a classic choice for bringing greenery into homes, and their delicate fronds are adept at drawing in moisture.

“Ferns absorb water through their fronds when placed in humid environments,” Lalicata shares. Popular indoor options like Boston ferns and bird’s nest ferns are not only great at regulating air moisture but also make striking visual statements.

However, they can be fussy. “Most ferns prefer medium to bright indirect light and can tolerate low light, but strong direct sunlight can scorch their leaves,” Lalicata warns. Crisp or browning fronds often indicate watering issues, so keep an eye on their care.

3. Pothos

Pothos, a staple for beginner plant parents, is a champion of air moisture and toxin absorption.

“Pothos thrive in high-humidity environments and prefer bright, indirect light,” Clarke says. With their trailing vines, pothos are perfect for hanging baskets or elevated shelves. They also enjoy deep watering when the top inch of soil feels dry.

To ensure your pothos stay happy, use a well-draining, slightly acidic potting mix. Clarke recommends ensuring good root zone airflow for optimal growth.

4. Bromeliads

Known for their vibrant colors and striking shapes, bromeliads are native to tropical climates and experts in moisture absorption.

“Bromeliads have specialized leaf rosettes that capture and absorb water,” says Lalicata. The central rosette collects water, which the plant slowly draws upon as needed.

To care for bromeliads, place them in sunny spots and avoid letting them dry out completely. Even after they’ve finished flowering, proper care will encourage the plant to produce “pups” for propagation.

5. Rubber Plants

Rubber plants, native to Southeast Asia, are as tough as they are beautiful. These humidity-tolerant plants thrive in indirect light and are well-suited to homes with fluctuating moisture levels.

“Rubber plants are tolerant of many types of humidity environments,” Clarke explains. “It’s best to water them once the top three inches of soil have dried out.” He also advises keeping their environment within 65°F-85°F to prevent decline.

Regular pruning of damaged foliage helps keep your rubber plant looking its best, and they’re a great choice for anyone looking for a low-maintenance addition to their collection.

Can houseplants replace a dehumidifier?

While these plants can absorb moisture from the air, don’t expect them to replace your dehumidifier. The effect of foliar uptake in a home environment is relatively minimal compared to their natural habitats. Still, they offer a host of other benefits, from improving air quality to boosting mood and reducing dust.

How to help your moisture-absorbing plants thrive

To make the most of your plant’s natural abilities:

• Place them in humid areas. Bathrooms, kitchens, and rooms with frequent condensation are ideal.
• Balance their needs. Ensure they still receive adequate light and watering, as air moisture alone won’t meet their hydration requirements.
• Keep them healthy. Regularly check for signs of overwatering, pests, or nutrient deficiencies to keep your plants in tip-top shape.

Why moisture-absorbing plants are a win-win

Incorporating these houseplants into your home not only helps regulate humidity but also brings a little slice of the tropics into your daily life. Whether you’re drawn to the timeless elegance of orchids or the easy-going charm of pothos, there’s a moisture-absorbing plant for every home and lifestyle.