Aerial Roots: What are they & can I cut them?

[Alyssa Piombo]

By Maddy Hogan

Welcome back to Riza’s educational blog series on plant care, your premier destination for all things indoor plants! Today, we embark on a journey into the mesmerizing world of aerial roots – those extensions that grace some of your cherished houseplants. Join us as we delve deeper into the intricacies of these unique features, exploring their multifaceted purposes, discussing the potential benefits, addressing the question of whether you can prune them, and shedding light on concerns regarding their safety for pets and children.

What Are Aerial Roots?

Aerial roots are remarkable structures that emerge above the soil line on specific plant species, extending into the air rather than anchoring in the ground. Unlike conventional roots, which play a role in stability and nutrient absorption, aerial roots serve unique functions depending on the plant's adaptation to its environment.

The most common house plants at Riza where you will find aerial roots are orchids, philodendrons, pothos, monsteras, and rubber trees.

Purpose of Aerial Roots

Nutrient Absorption​

Aerial roots can serve as nutrient-absorbing sponges, especially in plants native to humid environments. Orchids, for example, often rely on aerial roots to extract moisture and nutrients from the air, supplementing what the soil provides.​

Support and Anchorage
Epiphytic plants, such as orchids, bromeliads, and some ferns, use aerial roots for support. These roots anchor the plant to trees or other surfaces, providing stability in environments where soil isn't readily available.​

Water Storage​

In addition to their nutrient absorption capabilities, certain aerial roots act as storage organs, allowing plants to store water for drier periods. This adaptation is particularly useful for plants thriving in arid conditions.​

Air Purification
Some plants, like spider plants, use their aerial roots to absorb airborne pollutants, contributing to improved indoor air quality.​

Can You Cut Off Aerial Roots?

While it's generally recommended to avoid removing healthy aerial roots, there are instances where pruning might be necessary. If you notice any dead or decaying aerial roots, carefully trim them using sterilized scissors or pruning shears. This practice promotes overall plant health by preventing the spread of diseases.

Aerial Roots and Pet/Child Safety
At Riza, we prioritize the well-being of your family and furry friends. Many indoor plants with aerial roots are non-toxic; however, it's crucial to research each plant's specific characteristics. Some plants may cause mild irritation if ingested, leading to symptoms like nausea or an upset stomach. Always position your plants out of reach or give us a call ahead of time if you have any concern prior to pruning. We also can provide pruning of aerial roots as a part of our repotting service that is $1 per inch of soil per potting inch, therefore a 6” pot would be $6.

Embrace the Beauty of Aerial Roots

Aerial roots add a layer of intrigue and complexity to your indoor garden, showcasing the adaptability and resilience of nature. As you nurture your plants, take time to observe the growth and development of aerial roots as a testament to the plant's ability to thrive in diverse environments. We often get concerned plant friends and parents wondering what this new brown and spindly growth is, do not fear! Your plant is adapting to its environment in a healthy way.

Bonus Tips for Aerial Root Care!

Humidity Control​

Consider adjusting the humidity levels in your home to accommodate plants with aerial roots, providing an environment that mimics their natural habitat.​

Support Structures​

For plants like orchids, provide support structures such as stakes or mounts to assist with the growth and development of aerial roots.​

Regular Monitoring​

Regularly inspect your plants for signs of pests, diseases, or root rot. A proactive approach to care ensures a thriving indoor garden.​

In the world of indoor plants, aerial roots stand as a testament to nature's ingenuity. At Riza, we encourage you to not only appreciate, but also understand the multifaceted roles of these unique adaptations. Embrace the beauty of aerial roots, ensuring the well-being of your plants, family, and pets. You’ve got this!