How To Grow Duckweed Outdoors

Growing duckweed in my backyard. Rabbit, Duck and Chicken food
Growing duckweed in my backyard. Rabbit, Duck and Chicken food from

What is Duckweed?

Duckweed is a type of aquatic plant that belongs to the Lemnoideae family. It is a small, free-floating plant that has been used around the world for centuries, both as a food source and as a medicinal plant. This plant is easy to cultivate and can serve as an excellent source of food for ducks, fish, and other aquatic life. Duckweed grows quickly and is an excellent choice for anyone looking to cultivate an outdoor water garden.

Where to Plant Duckweed?

Duckweed can be planted in a variety of aquatic environments, including ponds, lakes, rivers, and even ditches. It prefers still or slow-moving water, and can tolerate a wide range of temperatures and water conditions. For best results, the water should be at least a few inches deep and should not be exposed to direct sunlight. Duckweed also prefers water that is slightly alkaline, with a pH of 7.5 or higher.

What Do You Need to Plant Duckweed?

When planting duckweed, you will need a few supplies. The most important thing to have is a container or pond that can hold enough water to submerge the duckweed. You will also need a nutrient-rich soil or substrate, and some fertilizer to help stimulate the growth of your duckweed. Additionally, you will need a source of light, such as a fluorescent light bulb or a natural light source, in order to promote healthy growth.

How to Plant Duckweed?

Once you have gathered the necessary supplies, you can begin planting your duckweed. Start by filling your container or pond with a few inches of water, then add in the nutrient-rich soil or substrate. Make sure the substrate is evenly distributed throughout the water. Next, add a few tablespoons of fertilizer, and stir the water to make sure it is evenly mixed. Finally, place your duckweed in the water, making sure it is completely submerged. You may need to use a net or sieve to help spread the duckweed evenly.

Caring for Duckweed Outdoors

Once your duckweed is planted, it is important to provide it with the proper care to ensure its survival. Make sure the water is kept clean and free of debris or pollutants, and use a pond filter or aerator if necessary. Additionally, you should check the pH level of your water regularly, as duckweed prefers slightly alkaline water. Duckweed also needs a light source, so make sure to keep it in a well-lit area. Lastly, you should fertilize your duckweed every few weeks to promote healthy growth.

Harvesting Duckweed

When your duckweed is mature, you can begin harvesting it. To do this, you should use a net or sieve to scoop up the duckweed from the water. Make sure to remove any debris or other plants that may have been mixed in with the duckweed. Once harvested, you can store the duckweed in a cool, dry place for up to a few weeks. Alternatively, you can use it immediately as food for ducks, fish, and other aquatic life.


Growing duckweed outdoors is a great way to create a water garden and provide food for ducks and other aquatic life. It is easy to cultivate and can thrive in a wide range of temperatures and water conditions. With the right supplies and proper care, you can easily grow duckweed in your outdoor water garden. So why not give it a try and see how it grows in your environment?

Previous Post Next Post