What plants purify water quality? A list of recommended varieties

Water is the source of life, and when it comes to maintaining healthy water quality, some plants are true "environmental guardians." Today, let's introduce a few remarkable plants that can purify water.

Water Hyacinth

Water hyacinth was once regarded as an "ecological killer" because of its excessive reproduction, but when used sensibly, its ability to purify water is not to be underestimated. Its well-developed root system can absorb large amounts of heavy metal ions and organic pollutants, quickly take up nutrients such as nitrogen and phosphorus from the water, effectively curb eutrophication, and gradually make murky water clear. However, you must keep its growth range under control.

Sweet Flag

Sweet flag favors moist spots by the water. It can take up heavy metals such as mercury and cadmium from the water, and it can further degrade the chemical oxygen demand in the water, easing the damage organic pollutants do to the ecosystem

Canna

Canna, whose underground stems and roots can take up heavy metals and organic pollutants from the sediment at the bottom of the water, locking them firmly within its body or converting them into harmless substances. The leaves, meanwhile, can block direct sunlight from hitting the water surface, preventing algae from multiplying wildly through excessive photosynthesis and thereby triggering algal blooms, keeping the water fresh and clear.

Lotus

The lotus rises from the mud yet stays unstained. Its underground stems and roots can absorb heavy metals and organic pollutants from the sediment at the bottom of the water; its underground stems and roots can take up heavy metals and organic pollutants from the sediment at the bottom of the water, locking them firmly within its body or converting them into harmless substances. The leaves, meanwhile, can block direct sunlight from hitting the water surface, preventing algae from multiplying wildly through excessive photosynthesis and thereby triggering algal blooms, keeping the water fresh and clear.

Purple Loosestrife

The branches, leaves and roots of purple loosestrife have a strong decontamination capacity, effectively removing bacteria and viruses such as E. coli from the water and blocking the pathways by which pathogens spread through water bodies. At the same time, it can also absorb and degrade pollutants such as certain organic dyes in the water, safeguarding the health and stability of the aquatic ecosystem while purifying the water.