While household plants certainly have their benefits, some of their “superpowers” have been overstated over time. Studies that show a plant’s compounds may create a specific effect are often true, but require much higher concentrations than exist in the average home. Landscape contractor Jenn Nawada helps explain some of the myths to host Kevin O’Connor.
Potted Plants Clean the Indoor Air: True or False?
A study in 1989 showed that potted plants have the potential to clean the air around them. They convert carbon dioxide to oxygen and remove harmful VOCs from the air. While these claims are true in theory, most homeowners won’t notice that effect. The reason? A homeowner would have to surround themselves with houseplants, filling the room with them, in order to see a difference.
Citronella for Bugs? Does It Work?
Another common myth is that planting citronella plants around your patio will keep the mosquitoes away. While bugs don’t like the smell of citronella plants’ oil, the concentration in the plants is too low to keep those pests away. Instead, a citronella candle with concentrated citronella oil is far more effective, and burning the wick releases it into the air.
You Can’t Prune Roots.
Most homeowners think that the plant’s roots are off-limits when it comes to planting and replanting. But the truth is that most plants aren’t as delicate as we think. Rather than simply popping it out of one cup for another, the plant will benefit from trimming roots as it spurs new growth, and teasing bound roots allows them to spread and search for more nutrients. Teasing will help the plant establish itself in the ground.
Don’t Believe Everything You Hear (But Don’t Write Houseplants Off!)
Some of the old stories about houseplants may not be true, or at least significantly over-embellished. But there are still many good reasons for caring for houseplants. They can liven a boring room with pops of color and texture, and caring for them can positively impact mental health. While they may not control mosquitoes or freshen your air, they’re still worth keeping around.
Resources
Jenn used a Pothos plant to show the re-rooting process. Find at your local plant nursery.
