17 Surprising Plants That Cleanse Soil and Water of Hidden Microplastics

Garden Plants
By Ella Brown

The increasing presence of microplastics in both soil and water has raised environmental concerns. Fortunately, nature provides us with effective allies in the form of certain garden plants capable of filtering these tiny pollutants. Here, we explore 17 remarkable plants that help cleanse our ecosystems by removing microplastics, contributing to a healthier and more sustainable environment.

1. Common reed (Phragmites australis)

© LIISMA

Common reed, with its towering, swaying stalks, thrives in wetlands. This plant is not just a pretty spectacle; it plays a crucial role in filtering microplastics from water sources. Its dense root system captures these tiny particles, preventing them from spreading further. The reed’s adaptability allows it to grow in various conditions, making it a versatile tool in environmental conservation efforts. Known for its resilience, common reed can withstand pollution, offering a natural solution to water purification. It has been widely studied for its phytoremediation capabilities, ensuring cleaner waterways.

2. Cattail (Typha spp.)

© Backyard Boss

Cattails, identifiable by their iconic brown flower spikes, are more than just marshland decorations. These plants serve as natural filters, trapping microplastics within their extensive root systems. Cattails thrive in wet environments, where they act as barriers against pollution. Their ability to grow quickly and spread efficiently makes them excellent candidates for large-scale environmental restoration projects. Besides filtering pollutants, cattails provide habitats for wildlife, enhancing biodiversity. Their robust nature allows them to tolerate various pollutants, further underscoring their ecological importance.

3. Sweet flag (Acorus calamus)

© AquaPlant – Texas A&M University

Sweet flag, with its fragrant, sword-like leaves, offers more than olfactory delight. This plant is a potent microplastic filter, thriving along the edges of ponds and streams. Its unique root structure captures harmful particles, helping to maintain clean water. The sweet flag’s resilience in wetland habitats makes it a valuable asset in environmental management. Often used in traditional medicine, it is now gaining recognition for its ecological benefits. Its ability to cleanse water adds a layer of utility to its aesthetic and aromatic appeal.

4. Water hyacinth (Eichhornia crassipes)

© EcoWatch

Water hyacinth, known for its vibrant purple blooms, floats gracefully on water surfaces. Despite being an invasive species in some regions, it plays a critical role in filtering out pollutants, including microplastics. Its fibrous roots extend into the water, capturing contaminants and improving water quality. Water hyacinth’s rapid growth can be both a boon and a challenge, but when managed properly, it serves as an effective natural purifier. Its beauty and utility make it a notable player in ecological restoration efforts.

5. Duckweed (Lemna minor)

© NatureSpot

Duckweed, the smallest flowering plant, forms a green carpet on water surfaces. This tiny plant is a powerhouse in filtering microplastics from water bodies. Its rapid growth and dense coverage allow it to absorb pollutants effectively, making it a popular choice for water purification projects. Duckweed not only cleanses but also provides food for aquatic life. Its ability to thrive in various conditions underscores its versatility as an environmental tool. While often overlooked due to its size, duckweed’s impact on water health is substantial.

6. Water lettuce (Pistia stratiotes)

© The Spruce

Water lettuce, with its rosette-like appearance, floats freely on water surfaces. Often mistaken for a large flower, this plant is adept at filtering microplastics from aquatic environments. Its roots dangle in the water, trapping pollutants and promoting cleaner ecosystems. Water lettuce is used in various water treatment initiatives due to its efficiency and ease of management. Besides its filtering capabilities, it provides habitat and nutrition for aquatic organisms. Its attractive appearance and functional benefits make it a popular choice for garden ponds and wetlands.

7. Parrot feather (Myriophyllum aquaticum)

© Amazon.com

Parrot feather, with its feathery, verdant foliage, is not just ornamental. This aquatic plant is instrumental in filtering microplastics from water sources. Its dense vegetation provides a habitat for aquatic life while capturing pollutants in its submerged foliage. The plant’s robust growth and adaptability to various water conditions make it an excellent candidate for ecological restoration. Parrot feather’s vibrant appearance complements its environmental utility, offering both beauty and function. By supporting water filtration, it plays a part in maintaining balanced ecosystems.

8. Hornwort (Ceratophyllum demersum)

© Aquarium Co-Op

Hornwort, with its bushy underwater stems, thrives in ponds and aquariums. This submerged plant is a silent warrior in the battle against microplastics. Its foliage provides shelter for aquatic life while actively filtering pollutants from the water. Hornwort’s ability to grow without rooting in soil allows it to absorb nutrients and contaminants directly from the water. Its rapid growth makes it effective in maintaining clean water bodies. Besides its filtering role, hornwort contributes to oxygen production, supporting a healthier aquatic environment.

9. Yellow flag iris (Iris pseudacorus)

© SSISC

Yellow flag iris, with its striking yellow blooms, adds a splash of color to wetland areas. Beyond its beauty, this iris species plays a pivotal role in filtering microplastics from water. Its robust rhizomes spread across the soil, capturing pollutants before they enter water bodies. The plant’s ability to thrive in wet and boggy environments makes it an ideal candidate for ecological restoration projects. Yellow flag iris not only enhances the visual appeal of landscapes but also significantly contributes to water purification.

10. Soft rush (Juncus effusus)

© Patuxent Nursery

Soft rush, with its slender stalks, thrives in marshy environments. This plant is not only a staple in wetland gardens but also a vital component in filtering microplastics from soil and water. Its intricate root network captures pollutants, preventing them from spreading. Soft rush’s adaptability to different conditions, combined with its aesthetic appeal, makes it a popular choice for landscaping. It contributes to biodiversity by providing habitats for various organisms. The plant’s subtle elegance belies its environmental significance, offering a natural solution to pollution.

11. Bulrush (Scirpus spp.)

© Green Star Wetland Plant Farm

Bulrush, with its tall, graceful stems, is a common sight in wetland areas. These plants are crucial in the battle against microplastic pollution, with their root systems effectively trapping these particles. Bulrushes provide habitat and food for wildlife, enriching the ecosystem. Their ability to stabilize soil and prevent erosion further enhances their ecological value. Despite their unassuming appearance, bulrushes play a pivotal role in maintaining clean and healthy water bodies, offering a natural defense against pollution.

12. Reed canary grass (Phalaris arundinacea)

© OSU Extension Service – Oregon State University

Reed canary grass, with its lush green blades, is often found along riverbanks and wetlands. This plant is an effective filter of microplastics, thanks to its dense root system that traps pollutants. It grows vigorously, adapting to various environmental conditions, making it a valuable asset in ecological restoration projects. Reed canary grass not only cleanses water bodies but also provides habitat for wildlife. Its resilience and ability to stabilize soil contribute to its environmental significance, underscoring its role in natural filtration processes.

13. Arrowhead (Sagittaria sagittifolia)

© Chalily

Arrowhead, named for its distinctive leaf shape, thrives at the water’s edge. This plant is instrumental in filtering microplastics, with its root systems capturing pollutants from soil and water. Arrowhead’s ability to grow in shallow waters makes it an ideal candidate for wetland restoration projects. Besides its filtering capabilities, this plant supports biodiversity by providing food and habitat for aquatic life. The combination of its unique appearance and environmental utility makes arrowhead a cherished addition to any water garden.

14. Pickerelweed (Pontederia cordata)

© New Hampshire Garden Solutions – WordPress.com

Pickerelweed, with its striking blue flowers, stands as an elegant addition to any wetland. Beyond its beauty, it plays a significant role in filtering microplastics from water bodies. The plant’s robust root system captures pollutants, helping to maintain clean and healthy ecosystems. Pickerelweed supports a diverse range of wildlife, offering food and shelter. Its adaptability to different water conditions makes it a versatile choice for ecological restoration. The plant’s dual role in aesthetic appeal and environmental protection underscores its value in nature conservation.

15. Blue flag iris (Iris versicolor)

© Craiyon

Blue flag iris, with its delicate, blue-violet flowers, adds elegance to stream banks and wetlands. This plant is a key player in filtering microplastics, using its rhizomes to trap pollutants. Blue flag iris thrives in moist environments, making it ideal for water gardens and ecological projects. Beyond its filtering abilities, it enhances biodiversity by providing habitat for various species. Its striking appearance and ecological significance make it a valuable addition to natural landscapes, offering both beauty and function.

16. Spikerush (Eleocharis palustris)

© Chalily

Spikerush, with its dense, tufted growth, thrives in marshlands and ponds. This plant is adept at filtering microplastics, trapping them within its root system. Spikerush’s ability to grow in saturated soils and shallow waters makes it an ideal candidate for wetland restoration. The plant’s role extends beyond filtration, contributing to soil stabilization and providing habitat for aquatic life. Its unassuming appearance belies its environmental importance, as it plays a crucial role in maintaining clean water and supporting biodiversity.

17. Yellow water lily (Nuphar lutea)

© NatureSpot

Yellow water lily, with its vibrant yellow blooms, graces the surfaces of ponds and lakes. This plant is not only decorative but also functional, playing a role in filtering microplastics. Its floating leaves and submerged stems trap pollutants, improving water quality. Yellow water lily’s ability to grow in various aquatic environments makes it valuable for ecological restoration efforts. Beyond filtration, it supports aquatic life by providing habitat and shade. The plant’s beauty and utility in natural filtration make it a cherished component of water gardens.