We are all familiar with the usual suspects that trigger asthma including secondhand smoke, dust mites, mold, pests like cockroaches, and pets. Did you know that your houseplants can affect the air quality in your home and your asthma?
The Good: Many Common Houseplants Improve Indoor Air Quality
Plants are frequently used to mediate the effects of pollution and toxins in our external environment. Our indoor environments can contain toxins such as volatile organic compounds (VOCs). Two common indoor VOC pollutants are benzene and formaldehyde. Benzene can be found in plastics, fabrics, pesticides, and cigarette smoke. Common household items such as dish detergent, fabric softener, and carpet cleaners all may contain formaldehyde.
VOCs have been linked to asthma and more serious conditions including respiratory illnesses and cancer. Plants act as filters to remove these harmful pollutants via their leaves and roots. In addition, the microorganisms living in the plant’s soil are a big help in neutralizing the air. Air-quality friendly plants include the Peace Lily, Golden Pothos, Red-Edged Dracaena, Snake Plant, and Asparagus Fern.
The Bad: These Houseplants are Indoor Irritants
Your friendly ficus that fills an empty corner has allergens in its sap. Palms, of the male variety, produce excess pollen. Check in with your local nursery to find a ‘female’ palm which is not a pollen offender. English ivy can cause skin irritations. African violets have beautiful flowers, but their leaves are dust catchers.
Don’t forget about cut flowers! If you home includes allergy sufferers, you may want to select flowers that generate less pollen like lilies, iris, roses and zinnias. Try to avoid daisies, chrysanthemums, and sunflowers in your table top bouquets.
Healthy Plants Mean Healthier Air: Avoid the Ugly Reality of Mold and Fungi
Over-watering your plants can lead to the development of a fungus and mold which are known asthma triggers. Remember that plants like ferns can be kept in rooms with higher humidity levels, such as your bathroom to keep them healthy and minimize over-watering.
NASA Guide to Air-Filtering Houseplants
Houseplant Watering Guide