Planta Discover

Hydroponic Plant Care: Water Changes and Tips

Published November 20, 2025

Hydroponic Plant Care: Water Changes and Tips

How to water hydroponic plants

Growing plants in water is called Hydroponic cultivation. There are several ways to do this and there are even full systems to grow common indoor plants, herbs, vegetables etc. The most common hydroponic way to grow you plants at home is by using the passive hydroponic method.

public/content/Dv9McdL-R_CtSpiBtBGFDQ.webp

Some things to consider

  • Make sure that your plant can grow in water. Some examples are Devil's ivy, Rubber plant, Jade plant, Spider plant, Peace lily, Monstera etc.

  • Make sure that the roots are clean from soil and that the container / vase you want to grow it in is clean.

  • If you use a transparent container: make sure that it doesn't get exposed to direct sunlight since that can focus the sun rays and concentrate them into potentially start a fire.

public/content/U1h_mbiDR3y0XuSz_7PjZA.webp

Water changes

Plants grown in water of course loves water - especially clean water - so whether you keep your plant in a bottle, container or bowl, you’ll need to change the water and clean the vessel from time to time.

  • Carefully lift up your plant and place it in a safe spot for now

  • Pour out all the water

  • Clean the bottle / bowl / vase / container

  • If you have pebbles / rocks in the bottom of the vessel, clean them as well

  • Fill your vessel with clean water

  • If you like you might also clean the roots of your plant by rinsing it under a soft jet of water

  • Put your plant back in the vessel

  • You can also add a few drops of fertilizer (suited for hydroponic cultivation)

Frequently asked questions

What is hydroponic cultivation?

Growing plants in water is called hydroponic cultivation. The most common method for home growers is the passive hydroponic method.

Which plants can grow in water?

Many common indoor plants, herbs, and vegetables can grow hydroponically. Examples include Devil's ivy, Rubber plant, Jade plant, Spider plant, Peace lily, and Monstera.

How do I change the water for hydroponic plants?

To change the water, carefully remove your plant, pour out the old water, clean the vessel and any pebbles, then refill with clean water before placing your plant back.

Should I fertilize plants grown hydroponically?

Yes, you can add a few drops of fertilizer specifically suited for hydroponic cultivation when you change the water in your plant's vessel.

How to Change Water for Hydroponic Plants

  1. Carefully lift up your plant and place it in a safe spot.

  2. Pour out all the water from the container.

  3. Clean the bottle, bowl, vase, or container thoroughly.

  4. If you have pebbles or rocks in the bottom of the vessel, clean them as well.

  5. Fill your vessel with clean water.

  6. Optionally, clean the roots of your plant by rinsing them under a soft jet of water.

  7. Put your plant back into the vessel.

  8. Optionally, add a few drops of fertilizer suited for hydroponic cultivation.