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how to grow marijuana clones

Not all pests, diseases, pesticide residues, or genetic markers will be easy to spot with the naked eye, but give your clones a good look before introducing them to your garden. If they look sickly or weak, they likely won’t grow well.

Another method growers employ is to take cuttings off a set of mother plants before they flower, then flip the mothers into the flowering stage. The next generation of clones is grown, and when those get big enough, cuttings will be taken from those before getting flipped into flower. Because clones are genetically identical, each generation will be an exact copy of the first-generation mother and all subsequent mothers.

Cannabis mother plants guarantee genetic consistency, so each new generation of clones taken will have the same taste, flavor, effects, and other characteristics. Clones will also generally grow at the same rate as the mother, produce a similar quality product, and grow with the same vigor, allowing you to dial in your process and really get to know how to grow that particular weed plant.

Inspect the cannabis clones

The beginning of a cannabis clone. (David Downs for Leafly)

Common rooting mediums include rooting cubes, rockwool, or other non-soil equivalents like peat or foam. Rockwool is melted rock that has been spun into a fine thread, and it has terrific airflow and moisture retention. You can find any of these cubes at most grow stores or online.

Clones will also save space in your garden—with seeds, you have to grow many and sex them out to identify and get rid of the males. Also, usually some seeds don’t germinate. You’ll need extra space for all those seeds, and they might not even turn into full plants.

How to clone a cannabis plant

Growers usually look for these qualities in a mother plant:

If you live in a medical or adult-use state, you’ll be able to get clones from some local weed shops, but make sure it’s a reputable shop.

How to grow marijuana clones

The next step is to spray the clones with water before moving the clones under the light.

Next, we soak the Jiffy 7 compressed peat pellets in the warm water, which makes the pellets expand in size, as pictured below.

When cutting clones from a mother plant it is better to cut a large section of a branch with multiple branches and bud sites.

Close the dome vents on Day 6.

How to grow marijuana clones

Enjoy the power of marijuana cloning!

You can easily keep a mother plant in the vegetative stage for two years or more as long as you keep the plant under a vegetative light schedule. Any clones can be kept in the same place until you’re ready to move them into your main growing area. Make sure the mother plant is well-fed and happy so that any clones you take off her are healthy and strong.

Now, there is a lot of great info in Ryan Riley’s Growing Elite Marijuana book. If you read the entire thing from front to back, even a totally experienced grower will learn something, and probably a whole lot of things. For a beginner, this book has literally everything you will need to know.

If getting plants to root as fast as possible, it’s best to take the clones off the bottom of the plant since these clones tend to have more root hormones and tend to take root in less time as clones taken from the top of the plant.

Keep these clones in the vegetative stage and allow them to start growing. I have a vegetative tent and flowering tent, and I just stick new, healthy clones in the vegetative tent until I’m ready to flower them.

If you have an automatic cloner, this is when you would place the new clone inside.

If you’re growing in rockwool cubes or other starter cubes like Rapid Rooters, then you know your clones are ready to be transplanted and receive regular light when you actually see the roots coming out the bottom of the cubes.

This is where things get a little bit tricky…

Cloning Cannabis: How to pick a valuable female plant to clone