Best plants to grow in water: Tips to choose the right one, how to care for them

Growing plants in water can occasionally lead to root rot or algae growth, so it’s important to keep an eye on the water. (Image: Canva)

If you would like some greenery in your home but don’t want to commit to full-time houseplants with their different watering schedules, need for fertilisers and potting soil, etc., growing plants in water might just be the perfect solution for you.

Growing plants in water is a fun and easy way to start your plant journey without the hassle of dealing with soil and the constant fear of overwatering and underwatering. It is also a space-saving solution if you have a small home and still want to enjoy some freshness and greenery.

Besides, watching roots grow and thrive right before your eyes can be pretty satisfying. Imagine beautiful glass jars or vases with roots floating in water, or seeing your favourite herbs and houseplants growing happily in water alone!

Here’s a simple guide on how to grow plants in water and create your own little indoor jungle, step by step.

Choose the right plants: Not all plants are suited for water growing, but plenty of favourites can thrive. Start with plants that adapt well to this environment.

Best plants for growing in water:

• Pothos: This low-maintenance plant is great for beginners and can live happily in water for years.
• Lucky bamboo: Requires minimal care and is often grown in water.
• Philodendron: Easy to root and grow, making it perfect for water propagation.
• Spider plant: Grow new plants from spiderettes or "pups" in water.
• English ivy: Adds an elegant, trailing effect when grown in water.
• Mint: Herbs like mint thrive in water and are handy for cooking too!

Since your plants will be living in water, the quality of that water is crucial.

Tips for watering:

• Use filtered or distilled water: Tap water often contains chemicals that could harm plants. Filtered or distilled water is best.
• Change water regularly: Every 1-2 weeks, swap out the old water to avoid stagnation.
• Watch water levels: Make sure the roots are submerged but avoid letting the leaves or stems sit in water.

• The container you use not only holds your plant but also adds to the overall look of your home decor.

• Glass jars or vases: Clear containers let you see the root growth but may encourage algae growth in bright areas.
• Ceramic or opaque containers: These are perfect for cutting down on algae growth, especially in well-lit rooms.
• Recycled bottles or mason jars: For an eco-friendly vibe, use glass bottles or jars for smaller plants.

Remember, all plants need light. Just because your plant is growing in water doesn’t mean you can stick it in a dark corner and hope for good results.

Lighting needs:

• Bright, indirect light: Most water-grown plants prefer this. Place them near a window but not directly in the sun.
• Artificial light: If you’re lacking natural light, grow lights are a great alternative.
• Avoid direct sunlight: Direct sunlight can overheat the water and harm the roots.

Ensure root support

• While some plants do just fine floating in water, others may need extra support as their roots develop.

• Stones or pebbles: Add these to the bottom of the container to give roots something to grip onto.
• Hydroponic clay pebbles: lightweight and great for aeration, these can help support the plant without soil.

• Plants in water don’t need as much fertiliser as those in soil, but they still require some nutrients.

• Use liquid fertiliser: Add a few drops of liquid plant food every 4-6 weeks to give them a nutrient boost.
• Don’t overdo it: Too much fertiliser can lead to algae growth or root damage.
• Rinse roots occasionally: If the water gets murky, rinse the roots and change the water.

• Growing plants in water can occasionally lead to root rot or algae growth, so it’s important to keep an eye on the water.

• Keep water clean: Change it regularly and clean the container to avoid algae.
• Trim dead roots: Remove any brown, slimy, or mushy roots.
• Move plants if algae develop: If you notice algae, move the plant to a spot with less light and clean the container.

• Some plants may take time to adjust and grow roots in water, so don’t worry if they aren’t sprouting immediately.

• Leave cuttings in water: Give them a few weeks to root and avoid moving them too often.
• Use rooting hormone (optional): Dipping cuttings in rooting hormone can help if you're struggling to see growth.