Cloning Cannabis Plants - A Comprehensive Guide

Cloning Cannabis Plants - A Comprehensive Guide

Cloning cannabis plants is an essential technique for growers who want to maintain consistent genetics and achieve a high yield.

By taking cuttings from a healthy mother plant, growers can produce genetically identical clones that will grow into mature plants in a shorter amount of time than starting from seeds. In this comprehensive guide, we'll discuss the best techniques for cloning cannabis plants, including tips for rooting cuttings, maintaining humidity, and choosing the right cloning medium. Whether you're a beginner or an experienced grower, this guide will provide you with the knowledge and skills you need to successfully clone your cannabis plants and produce a bountiful harvest.

cannabis plant

The Basics of Cloning Cannabis Plants

Cloning cannabis plants is the process of taking a cutting from a mother plant and rooting it to create a genetically identical clone. To successfully clone cannabis plants, it's important to understand the basics of the process, including:

Choosing a Mother Plant

To clone cannabis plants, you'll need a healthy mother plant that exhibits desirable traits such as high yield, potency, and disease resistance. It's important to choose a mother plant that is free from pests and diseases, as these can be passed on to the clones.

Taking a Cutting

Once you've chosen a healthy mother plant, it's time to take a cutting. Cuttings should be taken from the vegetative stage of growth, as this is when the plant is actively growing and has the highest success rate for rooting. Use a sharp, sterilized blade to take a cutting from the lower branches of the plant.

Preparing the Cutting

After taking a cutting, remove the lower leaves and cut the stem at a 45-degree angle. Dip the cutting in rooting hormone to promote root growth and reduce the risk of infection.

Rooting the Cutting

To root the cutting, place it in a cloning medium such as rockwool, peat moss, or coco coir. Maintain high humidity levels and provide a gentle source of light to promote root growth. Within a few weeks, the cutting should develop roots and be ready to transplant into soil or a hydroponic system.

By following these basic steps, you can successfully clone cannabis plants and produce genetically identical clones with desirable traits.

Cannabis plant

Techniques for Rooting Cannabis Cuttings

Rooting cannabis cuttings can be a challenging process, but with the right techniques, you can increase your success rate and produce healthy clones. Here are some tips for rooting cannabis cuttings:

Choosing the Right Cloning Medium

Choosing the right cloning medium is essential for successful rooting. The cloning medium should provide good drainage, retain moisture, and promote root growth. Some popular options include rockwool, peat moss, coco coir, and soilless mixes.

Maintaining Humidity Levels

High humidity levels are essential for rooting cannabis cuttings. You can maintain humidity by covering the cuttings with a humidity dome or by placing them in a propagator. The ideal humidity level for rooting cannabis cuttings is between 80-100%.

Be sure to monitor humidity levels regularly and adjust as needed. If the humidity is too high, the cuttings may become susceptible to mold and other fungal diseases. If the humidity is too low, the cuttings may wilt and die.

Providing Adequate Light

Cannabis cuttings need light to root, but too much light can be harmful. Provide a gentle source of light, such as fluorescent or LED grow lights, and keep them on for 18-24 hours per day.

Be sure to position the lights close to the cuttings but not too close. If the lights are too close, they can burn the cuttings. If they are too far away, the cuttings may not receive enough light.

Using Rooting Hormone

Rooting hormones can help promote root growth and increase the success rate of rooting cannabis cuttings. Dip the cuttings in rooting hormone before planting them in the cloning medium.

Rooting hormone comes in several forms, including powder, gel, and liquid. Powdered rooting hormone is the most common type and can be easily applied to the cuttings. Gel and liquid rooting hormone are also effective but can be more expensive.

Maintaining Temperature

Maintaining a consistent temperature is important for rooting cannabis cuttings. Ideally, the temperature should be between 20-25°C (68-77°F). You can use a heat mat or thermostat to regulate the temperature.

Be sure to monitor the temperature regularly and adjust as needed. If the temperature is too low, the cuttings may not root. If the temperature is too high, the cuttings may become susceptible to fungal diseases.

By following these techniques, you can increase your success rate and produce healthy cannabis clones.

how to clone cannabis - La Huerta Grow Shop

(La Huerta Grow Shop)

Choosing the Right Cloning Medium

Cloning medium is a crucial element when it comes to propagating cannabis cuttings. A cloning medium provides the necessary nutrients, oxygen, and moisture required for rooting and growth. Choosing the right cloning medium can significantly affect the success rate of your cloning process.


Soil is a common cloning medium for propagating cannabis cuttings. It provides a stable environment for the roots to grow and offers natural nutrients. However, soil can be challenging to maintain due to its susceptibility to diseases and pests. Additionally, soil has a lower oxygen content, which can hinder root growth.


Rockwool is another popular cloning medium that has been used for decades. It is a lightweight and sterile medium that provides excellent water retention and airflow. Rockwool comes in various sizes and shapes, making it versatile and easy to use. It also has a neutral pH, which allows for the easy adjustment of nutrient levels. However, rockwool can be challenging to dispose of due to its non-biodegradable nature.

Peat Pellets

Peat pellets are made from compressed peat moss and provide an excellent environment for rooting. They are lightweight, easy to use, and have a neutral pH. Peat pellets also have good water retention and drainage, which is essential for healthy root growth. However, they may not contain enough nutrients, and their high acidity can affect nutrient uptake.

Oasis Cubes

Oasis cubes are foam-like cubes that provide excellent water retention and aeration. They are sterile and easy to use, making them an ideal cloning medium for beginners. Oasis cubes also come pre-soaked in a nutrient solution, making them convenient and easy to use. However, they can be more expensive than other cloning mediums.

When choosing a cloning medium, consider factors such as cost, availability, and ease of use. It is also important to ensure that the medium provides adequate moisture, nutrients, and oxygen for rooting and growth.

Transplanting and Caring for Cannabis Clones

Once your cannabis cuttings have rooted and developed a healthy root system, it is time to transplant them into their permanent growing containers. Here are some tips for transplanting and caring for cannabis clones:


When transplanting your cannabis clones, be sure to use a high-quality growing medium that is rich in nutrients and provides excellent drainage. The growing medium should be well-aerated to allow for proper root development. When transplanting, be careful not to damage the roots, as this can set back growth and increase the risk of disease.


Cannabis clones require frequent watering until they have established a healthy root system. Water the clones with a gentle stream, being careful not to overwater, as this can lead to root rot. Allow the growing medium to dry out slightly between waterings to prevent waterlogged roots.


Cannabis clones require 18-24 hours of light per day to encourage growth and prevent stretching. Use a high-quality grow light or natural sunlight to provide the clones with the necessary light levels. Keep the light source at a distance of 2-3 feet from the clones to prevent burning.


Cannabis clones require a nutrient-rich growing medium and a balanced nutrient solution to encourage healthy growth. Use a high-quality cannabis-specific nutrient solution and follow the manufacturer's recommended dosage instructions. Be careful not to overfeed, as this can lead to nutrient burn and other problems.

cloning cannabis - How to Grow Marijuana

(How to Grow Marijuana)

Temperature and Humidity

Cannabis clones require a warm and humid environment to encourage root development and prevent stress. Maintain a temperature between 21-30°C and a relative humidity of 70-80% during the first few weeks of growth. As the clones mature, gradually reduce humidity levels to prevent mold and other problems.

By following these tips, you can ensure that your cannabis clones develop into healthy and productive plants. Remember to monitor the clones regularly for signs of stress or disease and address any issues promptly to prevent further problems.

A Rewarding and Enjoyable Experience

Cloning cannabis plants can be a rewarding experience for both novice and experienced growers. By using the right techniques and tools, you can create genetically identical cannabis plants that are robust, productive, and disease-resistant.

As we have discussed, the key to successful cannabis cloning is to ensure that you use healthy donor plants, choose the right cutting techniques, and provide the proper care and environment for the clones to thrive. Remember to use high-quality cloning mediums, maintain the right temperature, humidity, and lighting levels, and provide your clones with a balanced nutrient solution to encourage healthy growth.

Whether you are looking to create a consistent crop of your favorite strain or simply want to experiment with new genetic variations, cloning cannabis plants can be a fun and rewarding way to improve your growing skills and experience. So go ahead and give it a try - your cannabis plants will thank you for it.

Don't forget to check out our collection of cannabis grow books if you are interested in learning more about cannabis cultivation and how to optimize your growing setup. Happy growing!

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