How To Grow Duckweed At Home In 2023

Duckweed Care and Growing Guide
Duckweed Care and Growing Guide from

What is Duckweed?

Duckweed is a small aquatic plant that can be found in still or slow-moving bodies of fresh water. It is one of the smallest flowering plants in the world, with a size range of just 2 to 8 mm. Duckweed grows in colonies, with each individual plant only having one to three leaves. It is a great source of nutrition for waterfowl, but can be a nuisance in larger quantities.

Benefits of Growing Duckweed at Home

Duckweed is a great plant to have around the home. It has many benefits, such as providing a great source of food for waterfowl, being a natural filter for water, and providing a great habitat for many aquatic creatures. Growing duckweed at home can also be a great way to add some greenery to your backyard.

What You Need to Grow Duckweed

To grow duckweed, you will need a container of some kind. It can be any type of container, such as a large bucket, a tub, or even a pond. You will also need some duckweed seeds, which can be bought online or in some garden stores. Finally, you will need some water to fill your container, and a source of light. Duckweed prefers indirect sunlight, so you may want to position your container away from direct sunlight.

Preparing the Container

Once you have all the necessary materials, you can start preparing your container. Make sure that it is clean and free of debris before you start. You can use a mild detergent to clean it, and rinse it thoroughly before you add the water. You should also make sure that the container has enough drainage, as duckweed prefers moist but not soggy conditions.

Adding the Duckweed Seeds

Once your container is prepared, you can add the duckweed seeds. You should spread them evenly across the surface of the water. You can also add some sand or gravel to the container, as this will help the duckweed to spread more quickly. Make sure that the water is not too deep, as duckweed prefers shallow water.

Providing Light and Nutrients

Once you’ve added the duckweed seeds, you need to provide the necessary light and nutrients for them to grow. Duckweed needs indirect sunlight for about five to six hours a day, so you will need to position your container accordingly. You can also add some fish food or fertilizer to the water to provide the necessary nutrients for the duckweed to grow.

Monitoring the Growth

Once you’ve provided the necessary light and nutrients, you need to monitor the growth of the duckweed. It can take a few weeks for the duckweed to start sprouting, and you should keep an eye on it to make sure that it’s not getting overcrowded. If it starts to get too crowded, you can thin it out by removing some of the excess plants.

Harvesting the Duckweed

Once the duckweed has grown to the desired size, you can start harvesting it. To do this, you will need to use a pond net or a similar tool to scoop out the duckweed. You should try to harvest the whole plant, as this will help to reduce the chances of it coming back. Once you’ve harvested the duckweed, you can use it to feed your waterfowl or as an ingredient in homemade fertilizers.


Growing duckweed at home is a great way to add some greenery to your backyard and provide a great source of food for your waterfowl. It is relatively easy to do and requires minimal effort. All you need is a container, some duckweed seeds, water, and some light, and you’ll be on your way to growing your own duckweed in no time.

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