Can You Grow Duckweed Indoors?

Biogarden 40' Hydroponics Grow Bed Trough (without tank) Bioponica
Biogarden 40' Hydroponics Grow Bed Trough (without tank) Bioponica from

What Is Duckweed?

Duckweed is a type of aquatic plant that belongs to the family Lemnaceae. It is a small, oval-shaped floating plant that looks like a clover. Duckweed can be found growing in still and slow-moving freshwater bodies, such as ponds, lakes, and rivers. It is a popular plant among aquarists and pond owners, who often use it to help filter water and create a habitat for fish, frogs, and other aquatic animals.

Why Grow Duckweed Indoors?

Duckweed can be a great addition to your indoor garden. It is an attractive, low maintenance plant that helps to add beauty and life to your home. Duckweed is also a great source of food for aquatic animals such as fish, amphibians, and crustaceans. Additionally, it helps to filter water, which can help keep your aquarium clean and healthy.

How To Grow Duckweed Indoors

Growing duckweed indoors is fairly easy. First, you'll need a container that is big enough to hold the plant. It is best to use a container that is made of plastic or glass, as these materials do not leach any toxic chemicals into the water. You will also need a light source, such as a fluorescent light fixture, to provide the duckweed with the proper amount of light.

Once you've chosen a suitable container and light source, you'll need to fill the container with water. Tap water is fine, but it's best to use dechlorinated water to ensure that no chlorine is present. Once the water is in the container, add a few handfuls of duckweed to the water. The duckweed will quickly spread and start to grow.

Duckweed needs plenty of light and nutrients to grow, so you'll need to provide these as well. You can use a fertilizer specifically designed for aquatic plants, or you can add small amounts of fish waste to the water. Additionally, you should make sure that the water is kept clean and well aerated.

Caring For Duckweed Indoors

Once you have your duckweed growing indoors, caring for it is relatively easy. You will need to make sure that the water is clean and free of any pollutants. You can do this by changing the water weekly or biweekly, depending on how quickly the water becomes polluted. Additionally, you should monitor the water's pH levels and add a pH buffer if needed.

Duckweed also requires plenty of light and nutrients to thrive, so make sure to provide these as well. You should also be sure to prune any dead or dying leaves and stems to help keep the plant healthy and growing.


Growing duckweed indoors can be a great way to add color and life to your home. It is an easy plant to care for, and it can provide food and shelter for aquatic animals. With a little bit of effort and the right conditions, you can have a thriving indoor duckweed garden in no time.

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