1 April 2026

Air-Purifying Plant of the Month April 2026

Ferns: timeless plants

Pure nature. That’s what ferns are. Their lush yet elegant leaves immediately catch the eye. From dense forests to the windowsill in your home, ferns have been winning the hearts of plant lovers all over the world. No wonder they are the Air-Purifying Plant of the Month for April.

What makes ferns so special? Perhaps their mysterious origins from prehistoric times, long before the first flower appeared. Or their versatility, growing in shady forests and sunlit areas. Sometimes on the ground, sometimes in trees, or on top of rocks.

Air So Pure ferns

Ferns are more than just beautiful. Some species are particularly effective at purifying the air and improving humidity. At Air So Pure, you’ll find eight types of ferns that have all been carefully selected and tested for their air-purifying qualities: Adiantum, Asplenium, Blechnum Silver Lady, Didymochlaena Truncatula, Dryopteris erythrosora, Nephrolepis, Phlebodium and Pteris.

Our ferns are grown with care by our members Barreveld, Raadschelders Varens and VDE Plant. With a range of varieties and pot sizes, there is always a fern that suits your space.

Air So Pure luchtzuiverende varens Plant van de Maand April

Adiantum

The Adiantum , also known as the Maidenhair Fern, is a truly elegant plant. It stands out with its fine, delicate, fan-shaped leaves. In nature, it grows in moist, sheltered environments such as along streams in tropical and temperate regions. You’ll notice the same preference indoors. It thrives in lightly moist soil and a spot with indirect light. Avoid dry conditions and direct sunlight to keep it at its best.

At Air So Pure, the Adiantum is available in three varieties.

Asplenium

The Asplenium , also known as the Bird’s Nest Fern or Spleenwort, is a large family with more than 700 species. These versatile plants grow all over the world, from tropical rainforests to temperate regions. With its decorative look and air-purifying qualities, the Asplenium is a strong addition to any indoor space.

Its broad, glossy leaves bring a sense of calm. Unlike many other ferns, it doesn’t grow in the soil but on trees or rocks. That makes it just a little different. A strong, natural base for your interior. At Air So Pure, you’ll find Asplenium in eight varieties and three pot sizes.

Air So Pure Luchtzuiverende Planten Adiantum

Blechnum Silver Lady

The Blechnum Silver Lady , also known as the Dwarf Tree Fern, combines elegance with functionality. Its refined leaves help purify the air by removing pollutants such as benzene and toluene. A subtle yet powerful addition to your living space. In our assortment, it is available in two pot sizes. van de Blechnum.

Didymochlaena Truncatula

The Didymochlaena Truncatula, also known as the Mantle Fern, is a real eye-catcher with its rich texture and full shape. Its bronze-coloured leaves gradually turn a lighter green. This bushy fern is easy to care for and adds a warm, natural touch to your interior. It is available in three pot sizes.

Dryopteris erythrosora

The Dryopteris erythrosora is also known as the Autumn Fern. This fern is an expert at filtering pollutants so you enjoy a healthier living, working and relaxing environment. This fern gets its nickname from its red-colored leaves and is perfect if you want to combine green houseplants with color! Dryopteris adds a beautiful, natural accent to your interior. Available in three pot sizes.

Nephrolepis

The Nephrolepis, also known as the Boston Fern or curly fern, is easy to care for and highly effective. It produces oxygen while filtering harmful substances such as formaldehyde and xylene from the air. With this lush fern in your home, you’ll enjoy fresher air and improved humidity. It’s a popular choice and available at Air So Pure in three varieties and six pot sizes. Which one will you choose?

Phlebodium

One of our most well-known ferns is the Phlebodium, also called the Blue Star Fern. Its soft, blue-green leaves not only help remove pollutants like formaldehyde and benzene but also create a calm, relaxing atmosphere. Originally from the tropical regions of South and Central America, it thrives in humid, shaded environments. At Air So Pure, you can choose from two varieties and seven pot sizes.

Pteris

Finally, at Air So Pure you will find the Pteris, known for its striking leaf patterns. Often featuring a mix of light and dark green, it brings a playful touch compared to other ferns. In nature, it grows in (sub)tropical regions on shaded forest floors. Indoors, it prefers a spot with indirect light. With proper care, it helps create a more pleasant indoor climate. Available in four varieties and two pot sizes..

Styling ferns

Would you like to bring more nature into your home? Consider creating a mix of Air So Pure ferns. By combining different varieties, you’ll enjoy healthier air, better humidity, and a cosy atmosphere. For example, pair the lush Phlebodium with the compact Blechnum Silver Lady. Prefer a stronger, more structured look? Choose Nephrolepis or Asplenium. Want to add a bit more colour? Combine Didymochlaena, Dryopteris and Phlebodium for a lively mix.

Air So Pure’s air-purifying ferns also make great hanging plants! Think, for example, of the Phlebodium or Nephrolepis. You’ll find these plants at Air So Pure in large pot sizes—they look fantastic as hanging plants. Hang the fern in a cozy corner for a warm, inviting atmosphere, or place it in a more prominent spot for a playful touch. No wonder, then, that they are the Air-Purifying Plant of the Month for April!

Taking care of ferns

Air So Pure ferns are easy to care for, as long as you keep a few things in mind. Read on to learn how to keep your April Air-Purifying Plant of the Month looking its best for as long as possible.

Light: The air-purifying ferns in the Air So Pure collection prefer indirect light. So don’t place them in direct sunlight.
Water: Our ferns like to be watered once a week. Water them from the side or bottom of the pot. If you water them in the middle, they will eventually lose their leaves and develop a bare center.
Temperature: A consistent temperature works best. Avoid heat and drafts. Water a little more often in the summer, and be careful of dry air from the heater in the winter.
Pruning: In principle, you do not need to prune the Air So Pure ferns, but this also depends on your personal preference. Do you find certain leaves no longer beautiful, or does it sprout too much? Then cut off the leaves as close to the potting soil as possible.

Are ferns poisonous?

Air So Pure's air-purifying ferns are non-toxic! That's great if you have children or pets. So you can place them anywhere in your home with peace of mind. Of course, they're still plants, so eating them isn't a good idea.

Air Purifying Plant of the Month April

Why were ferns named the Air-Purifying Plant of the Month for April? Their ability to absorb harmful substances and convert them into fresh oxygen, combined with their ease of care and centuries-old history, make these plants a must-have for anyone striving for a healthier and greener living environment.

In addition to the Air-Purifying Plant of the Month for April, Air So Pure’s air-purifying collection includes many more plants. You’ll find the Spathiphyllum, Calathea, Monstera, Kentia palm, and many other varieties in our collection.

Check our store locator for all participating stores and score your Air Purifying Plant of the Month April now!

Participating shops