Creating an indoor water garden is one of the easiest ways to add calm, movement, and natural beauty to your home. Whether you want floating plants, a tabletop water bowl, or a small indoor water feature, building an indoor water garden is simple — and you only need a few materials to get started.
For extra help mastering basic plant care, see our guide on Simple Indoor Plant Maintenance Routine.
What Is an Indoor Water Garden?
An indoor water garden is a container filled with water, aquatic plants, and decorative elements that bring nature indoors. Unlike soil-based houseplants, water gardens rely on submerged or floating plants that naturally filter the water and add a relaxing feel to your space.
Indoor water gardens can be:
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Tabletop bowls
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Glass jars or vases
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Aquatic planters
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Mini indoor ponds
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Low-maintenance décor pieces
They’re perfect for beginners because they require little upkeep and no soil.
Best Plants for an Indoor Water Garden
Choosing the right aquatic plants keeps your indoor water garden clean and thriving. Look for species that grow well in still, shallow water.
Good options for water-growing displays include true aquatic plants and suitable houseplant cuttings, but they do not all need the same depth, light or water conditions.
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Lucky bamboo – thrives in water with indirect light
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Choose floating plants only if they are suitable for your container and legal to grow where you live; avoid invasive aquatic species.
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Anubias – extremely low-maintenance
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Pothos cuttings – grow well in water with zero effort
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Duckweed – tiny floating leaves that multiply naturally
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Peace lilies are better propagated by division rather than treated as aquatic stem cuttings.
Avoid plants that require high oxygenation or deep water unless you plan to add a pump.
How to Build Your Indoor Water Garden (Step-by-Step)
1. Choose Your Container
You can use almost any waterproof container:
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Glass bowls
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Ceramic pots (glazed interior)
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Jars
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Aquatic planters
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Small tabletop aquariums
Clear containers let you see plant roots and decorative stones, which adds visual interest.
2. Add Your Base Layer
Start with a layer of decorative stones, pebbles, or marbles. This helps weigh down plants, improves stability, and keeps the water visually clean.
Avoid using outdoor soil — it clouds the water and encourages bacteria.
3. Add Water (Filtered or Tap)
Use water suitable for the plants you are growing. Rainwater or filtered water can be useful for sensitive species. If you use tap water, check your local supply and the needs of the plant; leaving water to stand may reduce free chlorine, but it will not reliably remove chloramine. Where treatment is needed, use an appropriate water conditioner according to its instructions.
If you’re adding lucky bamboo or pothos cuttings, water depth should cover the bottom nodes only.
4. Add Your Plants
Place roots gently between pebbles or let floating plants rest on the surface. Ensure no leaves sit underwater — this prevents rot.
5. Position Your Water Garden
Most indoor water gardens prefer:
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Bright, indirect light
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Away from radiators or heat
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A stable room temperature
Match the position to the species you choose; many indoor water-garden plants prefer bright light without harsh midday sun.
How to Maintain an Indoor Water Garden
Indoor water gardens are low-maintenance — but a few simple habits keep the water clean and plants healthy.
Top Up Water Weekly
Water evaporates quickly indoors. Add fresh water when levels drop.
Refresh Water as Needed
Top up evaporation with suitable fresh water, remove debris promptly and refresh part or all of the water if it becomes cloudy, smelly or algae-heavy. The right interval depends on the plants, container size, light and whether the setup has filtration.
Clean Leaves and Remove Debris
Remove yellowing leaves before they sink and decay.
Use Natural Fertiliser (Optional)
If your aquatic plants need a boost, add a tiny dose of liquid fertiliser for aquarium plants to support steadier growth.
Add Decorative Elements
Stones, shells, or driftwood help anchor plants and personalise your display.
Troubleshooting Common Indoor Water Garden Issues
Water Turning Green
This is algae growth. Move your container slightly away from strong sunlight and change the water.
Yellowing Leaves
Usually caused by too little light or old water. Refresh the container more often.
Cloudy Water
Often due to plant debris or using soil — stick to pebbles instead.
Roots Rotting in Water
Ensure plant leaves aren’t submerged and replace water weekly.
Final Thoughts on Creating an Indoor Water Garden
An indoor water garden is one of the simplest and most beautiful ways to bring nature into your home. With just a container, clean water, and a few aquatic plants, you can create a calming, low-maintenance feature that looks stunning in any room. Keep the water fresh, give your plants the right light, and enjoy the relaxing movement and greenery your indoor water garden brings.
For more guidance on aquatic plant care, the RHS provides excellent advice on keeping water-grown plants healthy.
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