Canna can: Ornamental eliminates pollutants from stormwater runoff

Rapid population growth and urbanization have raised concerns over stormwater runoff contamination. Studies on watersheds indicate that excess nutrients, specifically nitrate -- nitrogen and soluble reactive phosphorus are found in stormwater runoff. Researchers investigating to use of plants to remove nitrogen and phosphorous from stormwater runoff showed that canna is a promising ornamental species for stormwater mitigation, and harvesting the aboveground biomass of canna can effectively remove nitrogen and phosphorous from the treatment system.

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