If you’ve ever felt a little more relaxed after watering your plants or simply sitting in a room filled with greenery, it may not be your imagination. A growing body of research suggests that houseplants can have a measurable impact on stress levels, mood, and overall well-being, making them much more than just stylish home décor.
While houseplants won’t replace healthy habits like exercise, sleep, or spending time outdoors, researchers say they can contribute to a calmer indoor environment, something many of us could use after a long day.
One of the strongest pieces of evidence comes from a 2022 systematic review and meta-analysis published in the International Journal of Environmental Research and Public Health. Researchers analyzed dozens of studies examining how indoor plants affect people and found consistent evidence that they improve psychological well-being. Across the research, indoor plants were associated with reduced stress, more positive emotions, improved attention, and greater feelings of comfort in indoor environments.
The benefits aren’t just psychological, they may also be physical. In a widely cited study published in the Journal of Physiological Anthropology, participants completed two different tasks: transplanting indoor plants and working on a computer. Researchers found that those interacting with plants experienced lower physiological stress responses, reduced activity in the sympathetic nervous system (the body’s “fight-or-flight” response), and reported feeling significantly more relaxed, comfortable, and soothed than those completing the computer task.
More recently, a 2023 review of epidemiological studies reached a similar conclusion. Although researchers noted that more long-term studies are still needed, every study included in the review found beneficial links between indoor plants and mental health, including lower stress levels, fewer depressive symptoms, and reduced negative emotions.
Scientists believe there are several reasons why greenery has this effect. Simply being exposed to nature, even indoors, can help the brain recover from mental fatigue while creating a greater sense of calm. Caring for plants also encourages mindfulness and provides a small but meaningful routine, giving people an opportunity to slow down and focus on something outside of work, screens, and everyday stressors.
For Ottawa residents, adding a few houseplants can also be a simple way to brighten long winters when time spent outdoors naturally decreases. Whether it’s a snake plant in your home office, a pothos on a bookshelf, or a collection of herbs growing in the kitchen, even small touches of greenery may help create a more relaxing living space.
The takeaway isn’t that houseplants are a cure for stress, but the research suggests they can be one more tool for supporting mental well-being. Sometimes, creating a calmer home starts with something as simple as bringing a little bit of nature inside.
