The science behind phytoremediation is using plants to remove pollution. Ultimately, plants can extract minerals and nutrients from the earth through their roots. Scientists have tested various species to determine their capacity to lower toxicity in soils, air, and even water. The most critical phytoremediation plants are the ferns.


Ferns are genuinely unique

They're relatively primitive, occupying the soil long before seed-bearing plants and flowers were discovered. Ferns can help control erosion, stabilize slopes and soils, create grounds in areas where there is none, and frequently perform these tasks in nature.

Ferns have two primary ways to accomplish this: thin, spreading the rhizomes and roots that create a mat that holds soil and fronds, which, as they age and fall, will reposition themselves on the ground, creating mats to support the earth as well as other organic matter. Different ways to build soil and conservation are:

Stoloniferous fronds.
Dense frond growth captures organic matter.
The capability to thrive in arid habitats.

The fact that many ferns thrive in environments where other plants are absent is one of the critical elements in their ecological competitiveness. In this way, they have developed methods of holding and building soils to benefit themselves and for a more significant environmental benefit.

The fern absorbs arsenic as fronds extend up to 5 feet. Contrary to roots -- which can accumulate pollutants the fronds are a breeze to pick when it's time to eliminate the arsenic. Scientists say more research is required to figure out how to stop the plants.

Ferns are likely to be more significant than we usually think in stabilizing the environment and should be given a chance to have that aspect researched more deeply.


Japanese Painted Fern

This Japanese-painted fern is considered one of the gorgeous ferns that are hardy, but it is also challenging for some gardeners to grow. Each section of the grey-green fronds features silvery zones along the middle, which are enhanced by a red midrib. It's beautiful, and with the right conditions, it spreads quickly.

The foliage of Japanese-painted fern is unique and appealing. They have bipinnate fronds breaking them into smaller leaflets and giving the plant a delicate, lacy appearance. The leaves combine silver, green, and purple to create striking contrasts that draw the attention of anyone who sees them.

The Japanese-painted fern can be described as deciduous, meaning it will shed its leaves in autumn and go into hibernation during winter. However, it will spring back in the spring with new growth. It prefers shaded, damp, moist places with well-draining soil and can tolerate different soil types. It's also relatively low-maintenance and doesn't require regular fertilization or pruning. The Japanese-painted ferns are prized because of their beauty and have a long tradition of therapeutic use in traditional Asian treatment. It has antioxidant and anti-inflammatory properties and is used to treat conditions such as bronchitis, arthritis, and fever.

Ultimately, the Japanese-painted fern is a beautiful plant that will add elegance to any landscape or garden. It's distinctive colors and delicate fronds will impress and delight nature admirers alike.

Christmas Fern

Christmas fern can be an excellent ground cover due to its evergreen leaves. It is a great choice as a cover for large expanses of uncultivated ground, particularly in shaded places in which other plants struggle to grow.

The lush foliage of Christmas ferns can make a natural border edge for pathways or garden beds. The fern's tallness (1-2 feet) is ideal for adding structure and character to the landscape. Christmas ferns planted in containers, by themselves, or with other plant species. It provides texture and a sense of interest to mixed plants and creates a lush backdrop for annual flowers of annuals.

Leaflets of the Christmas Fern are petite and round form. It comprises twenty to thirty-five leaflets arranged in pairs around its stem. The leaflets are 1 1/2 inches long and have a lobe close to the base. The leaflets also feature bristle teeth at their margins. They also come in a variety of shapes with a slight twitch. When the old fronds die, new fronds will unfurl, leaving a green appearance throughout the year.

Glade Fern

According to the name, this fern was initially found in forest glades or clearings in the woods, which typically get little or no sunlight. The name indicates that you plant it in a shaded or partially shaded area of your garden. Glade Fern is a fan of a place that is completely shadedare. It is most comfortable when it is in the shade. But you can maintain it in semi-shade or sunlit gardens with careful consideration of the soil's humidity and watering when required.

An established glade fern has beautiful, long fronds that grow taller than tall. The height is usually between 1 to 2 feet and can reach as far as three feet in width. This small, compact appearance makes the glade fern an excellent choice for planting as a ground cover.

The plants form clusters of five to six plants in well-drained, moist soil. If they get too dry, the edges of the leaves turn brown, signaling that it's time to offer them water.

Maidenhair Fern

The ease of growth and low-care requirements of this elegant fern make it the most sought-after shade plant garden, with borders that are shaded garden beds on slopes of ponds that are shaded. They are also great to plant on sloped hills and have little sunlight since they're much easier to cultivate than grass.

Maidenhair ferns have a pleasant nature. They require little care and need nothing more than a semi-shaded space and fertile soil. They enjoy occasionally adding wood soil or earthworm casts that give them dynamic growth. The most crucial element is ensuring that the soil surrounding your plants is moist but not excessively.

Maidenhair fern fronds are 16 to 26 inches and are a fascinating, softly rounded oval. The leaves of spring green are small and have three or two forked veins. The veins are a deeper, more vibrant green, creating a stunning contrast to the soft color of the foliage. Despite its strength, the maidenhair fern is a challenging and sturdy plant. Due to its thin leaves, it appears to be a vulnerable plant. Because of the foliage's tiny, fan-shaped parts, some people describe the leaves as lacy or feathery.

The Maidenhair fern looks gorgeous when it plants in the back row or middle of a border in a standalone plant in an area of shade or a water garden. It can also be produced on the northern or shady edges of your house's foundation to create a stunning display of vibrant spring green.


Tammy Sons, Horticulture Expert

Written by Tammy Sons

Tammy Sons is a horticulture expert and the CEO of TN Nursery, specializing in native plants, perennials, ferns, and sustainable gardening. With more than 35 years of hands-on growing experience, she has helped gardeners and restoration teams across the country build thriving, pollinator-friendly landscapes.

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