Kratky Hydroponic Cloning

Kratky cloning is a hydroponic method that can be used to clone plants with relative ease. The Kratky method does not require an aeroponic system or constant monitoring of water levels and nutrient concentrations. It simply involves suspending the stem of the cutting in a container of water and sometimes adding some nutrient solution, and allowing it to develop roots on its own without any additional work. 

I absolutely love using cloning to multiple my plants and keep a staggered, steady crop of plants. Kratky cloning works incredibly well for tomatoes, basil, cilantro and many plants. And, once the plant is mature it can be easily placed into a Kratky comtinaer.

The Kratky Cloning Process

To begin the Kratky cloning process, you will need several items: a shallow plastic tray or pot filled with water (the “reservoir”), a cutting taken from the parent plant, some rooting hormone powder and some nutrient solution. Fill the reservoir with enough water to cover the root area of your cutting. Then add in the necessary amount of nutrient solution according to the instructions on the package. Make sure that you mix the nutrient solution into the water thoroughly so it is evenly distributed throughout.

Once you have prepared your reservoir, place your cutting into it and apply a liberal amount of rooting hormone powder onto its base (wherever you intend for its roots to grow). You may also use a rooting gel if desired. Place your cutting in an area where it will be exposed to indirect sunlight so that it receives adequate light during its development process without being overexposed. Be sure to monitor the water level in the reservoir to ensure that it is always kept high enough that your cutting’s roots are submerged.

After a few weeks, you will begin to notice your cutting developing its own root system beneath the surface of the water. This is when you can start regularly feeding your new plant with additional nutrient solution and gradually adjusting the water level as needed. As soon as your cutting has formed an extensive root system, it is ready to be transplanted into soil or a hydroponic medium of your choice. You now have successfully cloned a new fruit-bearing plant using Kratky cloning!

Kratky cloning is an easy and reliable method for quickly reproducing plants without needing any complex equipment or constant monitoring. It also produces a higher success rate than other methods of cloning, making it the ideal choice for many gardeners and hobbyists alike. With just a few simple supplies and some patience, you too can start cloning with Kratky hydroponics today!

Kratky Basil Clones from Mature Cuttings

Kratky Hydroponic Cloning Products on Amazon


You can easily start from things you have on hand, such as empty food-grade glass jars and food containers with holes poked through them for net cups. The clay pebbles are hard to duplicate though I found, as they wick up moisture. When I got into Kratky a bit more, I bought some professional supplies and love them. These are the 4 things I would recommend should you wish to go that route as well.

These are the cloning rings I bought and they work well. I often use rockwool instead but these work well.

I bought these snips and love them. They are small enough to get into tiny place and super sharp.

I like this brand because they do tend to stay more moist than the other brands I have tried.

I use something similar to this – I have the older rose “cutting vases” that are about this size and ut my clones in,

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Introduction to Kratky Hydroponic Plant Cloning

The Kratky hydroponic method is a simple and effective way to clone plants using a passive system that requires no pumps or electricity. In this method, plants are grown in a container filled with nutrient solution, allowing the roots to grow directly into the solution.

Benefits of Kratky Hydroponic Plant Cloning

Kratky hydroponic plant cloning offers several advantages:

  • Reduced water usage
  • Simplicity of setup and maintenance
  • Faster growth rates
  • Ideal for beginners

Materials Needed for Kratky Hydroponic Plant Cloning

To start Kratky hydroponic plant cloning, you will need the following materials:

  • Container
  • Net pots or cloning collars
  • Growing medium
  • Nutrient solution
  • pH testing kit

Steps for Kratky Hydroponic Plant Cloning

Follow these steps to clone plants using the Kratky hydroponic method:

  1. Prepare the container and growing medium
  2. Perform the cloning process:
    • Select healthy mother plants
    • Cut clones
    • Insert clones into the growing medium
  3. Set up the hydroponic system:
    • Add nutrient solution to the container
    • Adjust pH levels
    • Place clones into the container
  4. Monitor and maintain the system

Tips for Successful Kratky Hydroponic Plant Cloning

Here are some tips to ensure successful Kratky hydroponic plant cloning:

  • Maintain proper nutrient levels
  • Monitor pH levels regularly
  • Provide adequate lighting
  • Keep clones in a controlled environment

Common Mistakes to Avoid

Be aware of these common mistakes when cloning plants using the Kratky hydroponic method:

  • Overcrowding the container
  • Neglecting pH and nutrient levels
  • Inadequate lighting


Kratky hydroponic plant cloning is a simple and efficient method for propagating plants. With its minimal requirements and high success rate, it’s an excellent choice for both novice and experienced growers.