How to Water Plants in Semi-Hydroponics (Semi-Hydro)

How to water semi-hydro plants

Plants grown in semi-hydro is planted in an inert growing media and has a small reservoir of water. With the capillary action of the growing media and the plants roots it is wicking water from the reservoir. You can use most types of containers as pots, even a glass jar without drainage holes!

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Make sure that the roots aren't in the actual water when it's newly converted or repotted. To prevent issues like root rot the roots shouldn't be fully submerged into the water.
If you use a tray or an outer pot as reservoir, make sure that the surface underneath isn't sensitive to moisture or that you have enough space between them to let air through. Even if the pot is glaced and the tray is solid condensation can form underneath it.

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Water refill

Pour water over the growing media or submerge the pot into water and make sure all of it gets a good rinse.
Fill up the reservoir with water so the bottom of the growing media reaches some of the water.
If you grow your plant in a container without drainage holes, such as a mason jar, you can fill up the jar with water and then pour out the excess.
It's good to now and then give the plant a good flush to prevent salt build ups. This can be done when adding fertilizer to the plant.

The water in the reservoir shouldn't go above 1/3 of the growing media
— Planta tip

Frequently asked questions

What is semi-hydroponics for plants?

In semi-hydroponics, plants grow in an inert medium with a small water reservoir. The growing media and the plant's roots wick water up from this reservoir through capillary action.

How much water should I put in a semi-hydro plant's reservoir?

The water in the reservoir should not go above 1/3 of the growing media. This ensures the roots are not fully submerged, which helps prevent issues like root rot.

How can I prevent root rot in semi-hydro plants?

To prevent root rot, ensure that the plant's roots are not in the actual water, especially when the plant is newly converted or repotted. The roots should not be fully submerged in the water reservoir.

Why should I flush my semi-hydro plant's growing media?

It is good to flush the growing media now and then to prevent salt buildup. This can be done when you are adding fertilizer to the plant.

What type of containers can be used for semi-hydroponics?

You can use most types of containers as pots for semi-hydroponics, even a glass jar without drainage holes. If using a tray or outer pot, ensure enough space for air to circulate underneath.

How to Water Plants in Semi-Hydroponics

Ensure the plant's roots are not fully submerged in the water, especially after conversion or repotting.

If using an outer pot or tray as a reservoir, make sure there is enough space for air to circulate underneath to prevent moisture issues.

Pour water over the growing media or submerge the pot to give all of it a good rinse.

Fill up the reservoir with water so that the bottom of the growing media reaches some of the water.

If you are growing your plant in a container without drainage holes, like a mason jar, fill the jar with water and then pour out the excess.

Periodically give the plant a good flush to prevent salt buildup, which can be done when adding fertilizer.