Ferns are a group of vascular plants that have been around for over 360 million years. They are known for their ability to survive in a variety of environments and for their distinctive, feathery leaves.
Many people appreciate ferns for their beauty and versatility in landscaping and indoor decor, but did you know that some ferns have the ability to improve the air quality in your home or office? So, do all ferns clean the air?
In this blog post, we’ll take a closer look at the science behind air-purifying ferns and find out which species are most effective at removing toxins from the air.
What are the benefits of air-purifying plants?
Plants have the ability to absorb harmful gases and particles from the air through a process called phytoremediation. This process helps to improve air quality and reduce the concentration of pollutants in the air. In addition to cleaning the air, plants can also increase humidity levels, reduce stress and fatigue, and improve overall well-being.
Which ferns are best at purifying the air?
Not all ferns are equally effective at removing toxins from the air. Some species are more efficient at removing certain pollutants than others. Here are a few of the most effective air-purifying ferns:
- Boston fern (Nephrolepis exaltata): This fern is known for its ability to remove formaldehyde, a common indoor pollutant that can cause respiratory problems. The Boston fern is also effective at removing xylene, a chemical found in paints, varnishes, and other household products.
- Maidenhair fern (Adiantum spp.): The delicate, lacy leaves of the maidenhair fern make it a popular choice for indoor decor. In addition to its aesthetic appeal, the maidenhair fern is also effective at removing benzene, a carcinogenic chemical found in tobacco smoke, gasoline, and some cleaning products.
- Kimberley Queen fern (Nephrolepis obliterata): This fast-growing fern is native to Australia and is known for its ability to remove a variety of toxins from the air, including formaldehyde, xylene, and toluene. It is also effective at increasing humidity levels, making it a great choice for dry, indoor environments.
- Delta Maidenhair fern (Adiantum raddianum): This fern is similar to the maidenhair fern in its ability to remove benzene from the air. It is also effective at removing trichloroethylene, a chemical found in dry cleaning products and some adhesives.

Tips for caring for air-purifying ferns:
- Provide the fern with the right amount of light: Ferns need indirect sunlight or artificial light to thrive. Avoid placing them in direct sunlight, as this can cause the leaves to yellow and die.
- Keep the soil moist: Ferns prefer consistently moist soil, but be careful not to overwater them. Overwatering can cause the roots to rot and the plant to die.
- Use the right type of potting soil: Ferns prefer a well-draining soil mix that is rich in organic matter. Avoid using a soil mix that is too heavy, as this can cause the roots to rot.
- Fertilize regularly: Ferns benefit from regular fertilization to promote healthy growth. Use a balanced fertilizer according to the package instructions.
In conclusion:
Ferns are more than just decorative plants – they also have the ability to purify the air in your home or office. The Boston fern, maidenhair fern, Kimberley Queen fern, and Delta Maidenhair fern are all effective at removing various toxins from the air.
With the right care, these air-purifying plants can help to improve indoor air quality and create a healthier environment for you and your family.