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Growing 101:

How to Clone Cannabis Plants

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Cannabis cultivation has become increasingly popular in recent years, thanks to the legalization of marijuana for medicinal and recreational use in various parts of the world. As a result, many growers are seeking ways to optimize their yields and preserve the unique traits of their favorite strains. One of the most effective methods to achieve this is cloning. Cloning cannabis plants allows growers to create genetically identical copies of their best specimens, ensuring consistent quality and desirable characteristics. In this comprehensive guide, we will discuss the various techniques for cloning cannabis plants, provide examples, and share expert tips to ensure success.

The Cloning Process: An Overview

Cloning cannabis plants involves taking a cutting from a “mother” plant and allowing it to develop roots and grow into a new, genetically identical plant. Cloning enables growers to replicate plants with specific traits, such as high THC content or distinct flavors, making it a valuable tool for cultivators looking to maintain consistency in their crops.

There are several methods for cloning cannabis plants, including:

  1. Aeroponic cloning
  2. Rockwool cubes
  3. Soil propagation
  4. Rooting in water

In the following sections, we will delve into each of these methods, providing examples and tips for success.

Aeroponic Cloning

Aeroponic cloning involves suspending cuttings in an environment where they receive a nutrient-rich mist. This mist contains everything the cutting needs to develop roots and grow into a new plant. Aeroponic systems are popular due to their efficiency and the speed at which they promote root growth.

Example: EZ-Clone

EZ-Clone is a popular aeroponic cloning system that offers various sizes to accommodate different numbers of cuttings. The system provides an environment where the cuttings receive optimal nutrient delivery and oxygenation, promoting rapid root development.

Tips for Success with Aeroponic Cloning

  1. Maintain a stable environment: Ensure that the cloning area maintains a consistent temperature and humidity level, ideally between 72-78°F (22-25°C) and 70-80% relative humidity.
  2. Use a sterile environment: Sterilize all equipment and the cloning area to prevent the introduction of pathogens and pests.
  3. Monitor pH levels: Maintain a pH level between 5.5 and 6.5 in the nutrient solution to encourage healthy root development.

Rockwool Cube Cloning

Rockwool cubes are made from spun rock fibers and provide a sterile, porous medium for cannabis cuttings to develop roots. This method is popular because it is relatively inexpensive and easy to use.

Example: Grodan Rockwool Cubes

Grodan Rockwool Cubes are a popular choice among cannabis cultivators for cloning. They come in various sizes and are designed to provide optimal water retention and air circulation, promoting healthy root growth.

Tips for Success with Rockwool Cube Cloning

  1. Pre-soak the Rockwool cubes: Soak the cubes in water with a pH of 5.5-6.0 for at least 30 minutes before inserting the cuttings.
  2. Maintain optimal humidity: Keep the humidity around the cuttings at 70-80% to encourage root development. A humidity dome can be helpful for maintaining these conditions. 3. Monitor the moisture level: Ensure that the Rockwool cubes remain moist but not saturated, as excessive moisture can lead to root rot.

Soil Propagation

Soil propagation is a traditional method of cloning cannabis plants and involves planting the cuttings directly into the soil. This method is popular among novice growers because it requires minimal equipment and expertise.

Example: FoxFarm Ocean Forest Potting Soil

FoxFarm Ocean Forest Potting Soil is a high-quality, nutrient-rich soil mix that is well-suited for cloning cannabis plants. It provides an optimal balance of nutrients and aeration, promoting healthy root growth.

Tips for Success with Soil Propagation

  1. Choose the right soil: Use a well-draining, nutrient-rich potting soil designed for cannabis cultivation.
  2. Maintain a sterile environment: Ensure the cutting tools and pots are sterilized to prevent contamination.
  3. Monitor moisture and humidity: Keep the soil consistently moist and maintain a humidity level of 70-80% around the cuttings.

Rooting in Water

Rooting cuttings in water is a simple and low-cost method for cloning cannabis plants. It involves placing the cuttings in a container filled with water and allowing them to develop roots before transplanting them into soil or another growing medium.

Example: Mason Jar Water Cloning

A simple example of rooting cannabis cuttings in water involves using a mason jar or another transparent container. Fill the container with water, and insert the cuttings, making sure the bottom nodes are submerged in the water.

Tips for Success with Rooting in Water

  1. Change the water regularly: Replace the water every two to three days to maintain freshness and prevent the growth of algae and bacteria.
  2. Provide aeration: Adding an air stone or diffuser can help maintain oxygen levels in the water, promoting healthy root development.
  3. Monitor root growth: Keep an eye on the development of the roots and transplant the cuttings into soil or another growing medium once they have a healthy root system.


Cloning cannabis plants is an effective way to preserve the genetic traits of your favorite strains and maintain consistency in your crop. By understanding the various methods available, you can choose the best approach for your specific needs and optimize your cloning success. Regardless of the method you choose, maintaining a sterile environment, providing optimal temperature and humidity, and monitoring the health of your cuttings are crucial steps for successful cannabis cloning.

Patricia is a dance-loving, animal-crazy individual with a passion for spreading the word about the amazing benefits of CBD. When she's not busy grooving to her favorite tunes, you can find researching all the ways CBD can enhance our lives.