By Kayla, Founder, Third Orbit Flora
After a study was done by NASA, it became clear that ferns are some of the best natural air filters, helping to absorb CO₂ and turn it into oxygen.
But ferns aren’t just good for air filtration.
According to an article from Penn State University, there is an aquatic fern commonly called “azolla,” “mosquito fern,” or “fairy moss” that is useful for its ability to rapidly double its biomass (in only two days!) and capture nitrogen from the air.
A Super Plant for Agriculture & Livestock
These superpowers allow this plant to be grown as a crop that is used in creating green fertilizer for other crops. It is even nutritious enough to be fed to poultry and livestock.
Although good for livestock, most species of azolla have a high acidity content—too high for humans to digest without causing harm.
That said, researchers at Penn State University have conducted a study suggesting that one common species of azolla, Carolina azolla, has a lower acidity level that can be further reduced by cooking. This lets humans digest it, allowing the body to absorb its nutrients.
Apparently, the fern has a neutral taste and crisp texture, and even contains a moderate amount of protein.
Could Azolla Help Solve Food Insecurity?
Having a nutritious food source that grows rapidly and requires minimal upkeep could provide an essential facet to solving food insecurity—or even serve as a reliable crop after a catastrophe!
The lead researcher, Daniel Winstead, discusses the potential uses of this fern in an article published by Penn State University. He believes this common plant could help solve one of the world’s oldest problems, saying:
“If systems for azolla cultivation and preparation can be made more efficient, its indoor or outdoor cultivation after natural disasters could provide supplemental nutrient production that are climate resilient.”
Winstead also notes that the plant needs further development, and even the U.S. space program has looked at including Carolina azolla in its research on plants in space.
Could we be close to finding a viable way to ease hunger on Earth and survive in space?
– Kayla, Third Orbit Flora
Source article: https://www.psu.edu/news/research/story/common-plant-could-help-reduce-food-insecurity-researchers-find/
Photo Credit: Adobe Stock image of Carolina azolla growing in some water.
Third Orbit Flora 
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