How To Grow Water Lettuce Indoors

Grow lettuce indoors without dirt! Place used lettuce heads in water
Grow lettuce indoors without dirt! Place used lettuce heads in water from

What is Water Lettuce?

Water lettuce (Pistia stratiotes) is a floating aquatic plant that is native to Tropical Asia and Africa. The plant grows on the surface of the water and has thick, fuzzy, green leaves that form a rosette shape. As the plant grows, it can produce small white flowers. Water lettuce is a unique and beautiful addition to any water garden or pond, and it’s surprisingly easy to grow indoors.

Where to Get Water Lettuce

Water lettuce can be purchased from most garden stores and nurseries. It is also available online from various retailers. Make sure to purchase a healthy specimen. If you can’t find water lettuce, you can also try growing it from seed.

Choosing a Container

The most important factor when growing water lettuce indoors is the container. It should be wide and shallow, with plenty of room for the roots to spread out. You can use a wide shallow bowl, a planter, or a plastic storage bin. Make sure the container is at least 6 inches deep, and the wider the better.

Filling the Container

Fill the container with clean, chlorine-free water. You can use tap water, but make sure to let it sit for 24 hours before adding the water lettuce. This will allow the chlorine to dissipate. You can also use rainwater or distilled water.

Preparing the Soil

Once you’ve filled the container with water, you’ll need to prepare the soil. You can use a mix of potting soil and sand, or you can use an aquatic soil mix. Make sure to mix the soil with the water until it is evenly distributed. You don’t want any large clumps of soil in the water.

Adding the Water Lettuce

Now that the soil is prepared, you’re ready to add the water lettuce. Make sure to submerge the roots in the water, and then gently press the soil around the roots to secure the plant in place. You can also use rocks or other heavy objects to help keep the plant in place.


Water lettuce is a fast-growing plant, so you’ll need to keep an eye on it and trim it back as needed. Make sure to remove any dead or dying leaves, and prune the plant if it gets too large. You can also use a fertilizer to help the plant grow.

Light and Temperature

Water lettuce does best in a warm, sunny location. Place the container in a spot that gets at least 6 hours of direct sunlight per day. If you can’t find a spot that gets enough light, you can use a grow light to supplement the natural light. You should also make sure the temperature stays between 65-85 degrees Fahrenheit.


Water lettuce is a unique and beautiful addition to any water garden or pond. It’s surprisingly easy to grow indoors, as long as you have the right container, soil, and light. With a bit of care and attention, you can have a thriving water lettuce indoors in no time.

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