Last Updated: July 2, 2026
This comprehensive guide covers everything you need to know about creating and maintaining a stunning indoor water garden in your home. Whether you’re a beginner looking for a low-maintenance indoor gardening option or an experienced plant enthusiast wanting to explore aquatic plants, you’ll learn about container selection, plant choices, algae control, lighting requirements, fertilization, and important disposal considerations for aquatic species.
All you need to make a water garden is a nice, clear glass container. Apothecary jars and attractive vases or aquariums are good choices. Antique shops are a great place to look for attractive jars and other interesting supplies. Your jar doesn’t have to be clear glass. I just think it provides so many more ways to view the plant.
Indoor water garden design can be fun. It’s purely decorative and you can play around with interesting props commonly used in aquariums to make underwater scenes.
Your should position your water garden so that it gets light that is appropriate for the plants you have. Anubias which are common aquatic plants, enjoy weaker light so you can keep them out of direct sunlight.
According to the National Gardening Association, indoor gardening including water gardens has seen a 65% increase in popularity since 2020, with aquatic plants being among the fastest-growing segments due to their low maintenance requirements.
Choosing the Right Plants for Your Indoor Water Garden
There are two types of plants you can grow in a water garden. Fully aquatic plants can be totally submerged in water, while semi-aquatic plants must have their leaves above water.
Some water garden plants to look at are:
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- Anubias
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- Parrot’s feather
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- Floating liverwort (aka Crystalwort)
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- Hornwort
Dealing with Algae Growth in Your Water Garden
Your water garden is likely to start developing algae. This will make it more difficult to see through the glass in your container (that’s if you’re using a glass container). If it doesn’t correct itself, try using a special algae removal product to assist.
Selecting the Best Growing Medium for Aquatic Plants
Many aquatic plants don’t require a growing medium. You can use aquarium gravel or small pebbles to hold down the roots of your plants. Make sure you wash gravel and pebbles before introducing them to your garden. This will clear off bits of dust that will cloud your water. I suggest rinsing them twice.
Lighting Requirements for Indoor Water Gardens
Some plants will need a lot of light and I’d recommend using an aquarium fluorescent light. It’ll also help to make your water garden into a feature in the room.
Fertilizer Guidelines for Aquatic Plants
Ask the shop where you bought your plants for fertilizer tablets. These are special tablets for aquatic plants that will dissolve in the water and provide yoru plants with the nutrients that they need. Overfertilizing may lead some plants to grow too quickly so take it easy.
Plant Disposal Caution for Invasive Aquatic Species
Many aquatic plants, although fantastic for water gardens, are invasive species which will take over if introduced into the outdoor environment. If you need to get rid of some of these plants, please throw them away with your rubbish rather than into the garden waste.
Other Indoor Water Feature Options to Consider
A traditional water garden as I’ve described isn’t the only way you can make use of water as a feature in your indoor gardening.
Article source: http://www.beginner-indoor-gardening.com/indoor-water-garden.html
What is an indoor water garden and how does it work?
An indoor water garden is a decorative garden where plants are grown directly in water rather than soil, similar to planting in a fish tank. These gardens work by allowing aquatic or semi-aquatic plants to absorb nutrients directly from the water, requiring only regular water changes to maintain healthy plant growth. They are ideal for people who want a low-maintenance indoor gardening option.
What type of container is best for an indoor water garden?
Clear glass containers such as apothecary jars, decorative vases, and aquariums are excellent choices for indoor water gardens. While containers don’t have to be clear glass, transparent options allow you to view the plants and underwater scenery from multiple angles. Antique shops are great places to find unique and attractive containers for your water garden.
Which plants can you grow in an indoor water garden?
You can grow both fully aquatic plants that remain completely submerged and semi-aquatic plants that keep their leaves above water. Popular choices include Anubias, Parrot’s feather, Floating liverwort (Crystalwort), and Hornwort. Anubias is particularly beginner-friendly as it thrives in low-light conditions and doesn’t require direct sunlight.
How do you prevent algae growth in an indoor water garden?
Algae growth is common in indoor water gardens and can obscure the glass over time. If the algae problem doesn’t correct itself naturally, you can use specialized algae removal products designed for aquatic environments. Proper lighting levels and regular water changes can also help minimize excessive algae development.
Do indoor water garden plants need fertilizer?
Yes, aquatic plants benefit from special fertilizer tablets that dissolve in water and provide essential nutrients. You can purchase these tablets from aquarium or plant shops where you bought your plants. Be careful not to overfertilize, as this can cause some plants to grow too quickly and become difficult to manage.
Why is proper disposal of aquatic plants important?
Many aquatic plants commonly used in indoor water gardens are invasive species that can cause significant environmental damage if released into outdoor waterways or gardens. When disposing of unwanted aquatic plants, always place them in your regular household rubbish rather than garden waste or compost. This prevents these invasive species from spreading and taking over native ecosystems.
What lighting do indoor water gardens need?
Lighting requirements vary depending on the plants you choose for your water garden. Some plants like Anubias prefer weaker, indirect light, while others need brighter conditions. For plants requiring more light, an aquarium fluorescent light is recommended, which also serves as an attractive feature to highlight your water garden in the room.
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