Water lentils: Small plant, unique properties

So, what exactly are duckweed?

Duckweed – also known by the botanical name Lemna – are among the smallest flowering plants in the world. You’ll often spot them floating on the surface of ponds, ditches, or calm streams. There, they form green carpets that almost look like a layer of moss at first glance.

These tiny floating plants are surprisingly undemanding and multiply rapidly when conditions are right. Their ability to spread quickly and absorb nutrients from the water makes them fascinating for ecosystems – and people have long taken notice of them too.

Duckweed in herbal tradition

Duckweed was already known in the Middle Ages – for example, in the monastic traditions of Hildegard von Bingen. Traditionally, it was used as part of herbal tonics. Duckweed also played a role in the herbal traditions of various cultures.

Today, this old knowledge is being rediscovered more and more. The plant is back in the spotlight because of its properties – for example, as an ingredient in modern herbal elixirs or supplements. What’s especially interesting: its high nutrient density in such a tiny package.

Why duckweed is interesting as a food

Duckweed is packed with high-quality plant-based protein, making it an exciting protein source – especially for people who eat vegetarian or vegan. In some parts of Asia, it’s been part of traditional cuisine for a long time. In Europe, using it as food is still pretty new, but it’s becoming more and more popular.

Besides protein, duckweed also contains iron, vitamin B12 (in certain types), fiber, and secondary plant compounds. This nutrient combo makes it a promising food – and researchers are increasingly interested in the potential of this little plant for our diets.

Duckweed in everyday life: powders, shakes, and elixirs

These days, there are loads of duckweed-based products – from classic duckweed powder to ready-made shakes and elixirs. If you want to buy duckweed, you’ll find it online or occasionally in drugstores.

The products differ in how they’re made and used: powder can be mixed into smoothies or used for baking, for example. Shakes often contain duckweed extracts combined with other botanical ingredients. And elixirs are often based on traditional recipes – sometimes inspired by Hildegard von Bingen. In our shop you’ll find the Duckweed Herbal Tonic – one of the most well-known preparations from Hildegard’s teachings.

One thing to keep in mind: If you’re new to duckweed products, start slowly and listen to your body. Like with all botanical remedies, everyone can react a bit differently.

Good to know: cultivation and sustainability

One big advantage of duckweed: it’s especially resource-friendly to grow. It doesn’t need much space or fertilizer and grows without soil – right in the water. That makes it one of the most sustainable plants you could choose for food.

In aquaculture, duckweed can be cultivated in a targeted and controlled way. It can even help clean water by absorbing excess nutrients. Its rapid growth and great CO₂ balance make it a real plant of the future – both ecologically and economically.

Conclusion: A plant with potential

Duckweed may be small, but it’s remarkable: it connects old herbal traditions with modern nutrition science. Whether as a supplement, protein source, or sustainable ingredient – the possibilities are endless. And even though it’s not as well known in Europe as in other parts of the world, it’s definitely worth a closer look.

If you’re into conscious, natural nutrition, duckweed is hard to ignore. Not because you have to jump on every trend – but because it’s a great example of how much fascination can be found in the world’s most unassuming plants. Check out our entire range inspired by Hildegard’s teachings.