Best Koi Pond Plants (Plants for Shelter, Oxygen Filtration %26), Water Hyacinth (Eichhornia crassipes), Smart Water Grass (Persicaria amphibia), Scrubbing (Equisetum), Water Lettuce (Pistia stratiotes), Eel Grass (Vallisneria). The best overall plant for your koi pond is the aquatic lotus. This beautiful plant is often confused with the water lily, but it lacks the groove in the leaves present in the leaves of the water lily. The large, round leaves are excellent for providing shade for koi and for supporting populations of small insects and crustaceans that eat koi.
These plants grow quickly and produce beautiful flowers. Depending on the variety, they can be planted to a depth of up to 2 inches and to a depth of up to 18 inches or more. They spread easily and reproduce very well without assistance. Elodea, also called Anacharis, is a fast-growing plant that is widely sold as an aquarium plant.
It can reach up to 3 feet in most circumstances, although wild Elodea is reported to reach up to 9 feet in height. It is a stem plant that is usually grown in clusters, giving it an appearance reminiscent of seaweed. While your koi can sting this plant, it grows fast enough to recover quickly. It is resistant and can regrow after being chewed.
Although Hornwort can reach 10 feet in height, it does not grow above the waterline. As it blooms, the flowers are insignificant and unattractive. It grows best in medium to high lighting conditions, so if your pond is located in a shaded area, this plant is likely to start shedding its leaves in the form of thorns, which can litter and clog filtration systems. If you're interested in an unusual plant for your koi pond, then Dwarf Egyptian Papyrus may be just what you're looking for.
This plant prefers to be grown in shallow water that is only a few centimeters deep, but it can also be grown as a land plant in areas where the soil remains moist all the time, such as at the edge of a pond. It only reaches 3 feet tall, but extends outward, leaving seedlings throughout the growing season. It does not produce typical flowers, but it does create blooming buds that resemble firecrackers that explode with small flowers at the ends. Egyptian dwarf papyrus has a low risk of becoming invasive, unless neglected for several years.
Horsetail Cane, also sometimes called Scruing Rush, is a bamboo-like plant that grows exceptionally fast on pond edges in moist soil. It grows up to 3 feet tall but stays narrow, making its distribution easy to control. This plant is not at risk of becoming invasive because it is native to almost the entire Northern Hemisphere, including the entire United States. It is cold-resistant up to 5° F, but will not begin to grow during the season until the soil starts to warm, usually around 60° F.
This plant does not produce leaves and produces flowers that look like a combination of cattail and pineapple, so it does not produce colorful or large flowers. Once you have this plant, it's exceptionally difficult to remove, so plant it only if you intend to conserve it. A single plant can live up to 10 years. Be careful when planting horsetail reeds because they are toxic to livestock, that is, to cows and sheep, and can also have toxic properties for domestic pets.
Water lettuce is a beautiful floating plant that resembles a lettuce with creeping roots. It produces white, small, fragrant flowers and can reproduce sexually or through corridors. It's an attractive plant when floating in koi ponds and its long roots make a great home for small crustaceans. Koi can eat these roots, but they will grow back quickly.
Water lettuce reproduces and grows rapidly, and although it only grows to about 4 inches tall, it can grow to about 10 inches wide. Once the water temperature reaches 60° F, it will generally begin to grow and reproduce. Water hyacinth carries a high risk of becoming an invader if allowed to enter native waterways. It can block sunlight to plants below and obstruct waterways, allowing mosquito larvae to grow and reducing water flow to wildlife.
The rapid rate of reproduction and overall resistance of this plant also increases the risk of it becoming invasive. A single plant can produce thousands of seeds, which are viable for 30 years or more. Adding plants to your koi pond is a fantastic way to improve the overall water quality in your pond. Plants are a good source of oxygen in water and will also help remove CO2 from the water.
They also extract waste products from water, specifically nitrate. By removing nitrate from water, plants help keep their koi safe and reduce the nutrients available for algae to consume. Although a notorious plant that can quickly take over the pond, water hyacinth is one of the most popular plants found in most koi ponds. They usually grow on their own, but you can also introduce them yourself.
They have large leaves that shade the fish and, at the same time, they sprout beautiful flowers that add to the beauty of the pond. They also absorb unwanted toxic materials from the water in the same way that an activated carbon sponge filter works. Almost like a lotus, the water lily is another popular choice for pond owners who usually grow very fast, with large flat leaves that rest on the surface of the water, with a single beautiful flower that rises above everything else. They are highly adaptable and can grow in water as shallow as 6 inches deep.
Koi fish are known to prefer water lilies to other plants, as they provide surfaces for fish to lay their eggs away from predators. The plant is also an excellent filter material for ponds. Water lettuce almost resembles the normal edible lettuce that humans grow on their farms. It is a plant that grows in a close-knit formation and can block access to the surface of the water from the outside; this could be useful for koi fish that need to hide from predators.
It can grow in water more than 30 feet deep, and a single plant can cover an area 3 feet wide and help filter the pond. You have to watch its spread, or you can have your entire pond in a sea of green. Eel grass is a type of submerged pond plant that is responsible for the oxygenation of the water where they grow. They do well in shallow water, where sunlight can reach the bottom, as they tend to grow along the ground.
In good condition, they can grow large enough to break the surface of the water. They provide one of the safest breeding grounds for koi fish and act as a biological filter for ponds, so this is the type of plant you can consider introducing urgently into your pond. Water poppies are another set of aquatic plants that have small, beautiful flowers that add beauty to the pond. They are in the same category as lotuses and lilies, and are very good at monopolizing the water surface when given freedom to grow.
They're fast growing, especially when the summer heat sets in, and they're also reliable water filtration agents that koi fish love. Aquatic purslane is one of our favorite plants for a koi pond, especially the red variety. With its striking purple or crimson leaves, it adds color to any pond garden. It is also a good oxygenator and provides shelter for your koi fish.
They make excellent pond water filters and are loved by insects, which end up being food for the koi fish below. Larger ponds don't need as many plants because the depth of the pond provides shade and cooler water for the koi. Almost like a lotus, the water lily is another popular choice for pond owners who usually grow very fast, with large, flat leaves that rest on the surface of the water with a single beautiful flower that rises above everything else. They are smaller than many other pond plants, and because they don't grow much above the waterline, they can be difficult to see in a pond environment.
If you can't find information about whether a particular plant is poisonous, reconsider using it in your pond. You can grow aquatic purslane as a floating plant on the surface of your pond, or you can submerge it completely. Aquatic plants can help increase oxygen production in the water by maintaining the pond with adequate aeration for kois. They are good at removing carbon dioxide from water and, when combined with oxygenating pond plants, provide good teamwork that ensures that the pond has ideal conditions for fish to thrive.
And in most regions of the world, these flowering koi pond plants come in stunning whites, blues, yellows and pinks. This is probably the most famous of all pond plants, thanks to the beautiful flower that blooms for most of the year. Better known as American Waterweed, this is a pond plant that loves to grow in silty ponds, where they thrive as submerged plants, and the only part that reaches the surface is their small white flowers. When you submerge it, the upper leaves will rest in the water, and the flowers will sprout a few centimeters above your pond.
To make sure your fish don't eat all the water lilies in your koi pond, make sure you have plenty of other food options, such as water lettuce or water hyacinth. . .