Want to grow duckweed?
It’s easier than you think!
With the right tactics, you can have lush, green duckweed in no time. Discover 9 simple ways to help it thrive.
Ready to get growing?
Let’s get into it!
Choose the Right Container
First things first, pick the right container for your duckweed. It can be an aquarium, a pond, or even a big bowl.
Make sure it’s clean and free from any chemicals. Duckweed grows best in wide and shallow containers, but deep ones work too.
Just make sure there’s plenty of surface area. Pro tip: A clear container helps you keep an eye on things, but it’s not a must-have.
Add Nutrient-Rich Water
Your duckweed will need water with nutrients to thrive. You can use pond water, aquarium water, or simply tap water with added aquatic plant fertilizer.
Make sure the water is not too acidic or alkaline; a neutral pH of around 6.5 to 7.5 is ideal. Don’t stress too much about it—duckweed is pretty adaptive!
Provide Adequate Sunlight
Light is key for duckweed growth. Place your container where it can get at least 6-8 hours of sunlight daily.
If you’re growing it indoors, consider using grow lights. Duckweed loves bright, indirect light.
Make sure it doesn’t get too hot, though; temperatures between 65-75°F (18-24°C) are perfect.
Maintain Proper Temperature
Duckweed likes it warm but not scorching. As mentioned, keep the water temperature around 65-75°F (18-24°C).
If it gets too cold or too hot, your duckweed might struggle. Use a thermometer to keep an eye on things if you’re unsure.
Room temperature normally does the trick.
Ensure Good Water Circulation
While duckweed doesn’t need bubbling streams, some gentle water movement helps. A small aquarium pump or a gentle air stone will do.
This prevents stagnation and helps your duckweed get all the nutrients it needs. Avoid strong currents, as they can stress the tiny plants.
Feed Your Duckweed
Yes, feed your duckweed! Duckweed feeds off nutrients in the water, so occasionally add some liquid fertilizer designed for aquatic plants.
Follow the instructions on the label, and don’t overdo it. Too many nutrients can lead to algae growth, which competes with duckweed.
Harvest Regularly
Duckweed grows like crazy if it likes its environment, so you’ll need to harvest it regularly. Simply scoop out what you need.
This makes room for fresh growth and prevents overcrowding, which can stifle the plant. Bonus: Duckweed is a great natural food source for fish and poultry.
Monitor Water Quality
Keep an eye on the water quality. Clean and clear water is vital for healthy duckweed.
If the water gets dirty, replace part of it with fresh, nutrient-rich water. Avoid using untreated tap water, as chlorine and other chemicals can harm your plants.
Regular water changes will keep your duckweed happy and thriving.
Prevent Pests and Diseases
Luckily, duckweed is pretty hardy, but it can still fall prey to pests and diseases. Keep an eye out for any unusual spots or discoloration.
If you notice any issues, remove the affected plants and dispose of them. Regular cleaning and monitoring will help you catch problems early.