Growing cannabis cuttings

Propagation of cannabis by cuttings

Marijuana or Cannabis Sativa is a perfect species for asexual propagation (i.e. propagation via cuttings). To clone your favorite cannabis plant you need the following basic material:

  • A small propagator (heated, if possible)
  • Sterilized scissors for cloning, properly sharpened (shaving razors or surgical knives/scalpels can also be used)
  • Rooting hormones, like ClonFix or Clonex
  • Substrate for the cuttings (jiffy peat moss pellets, rock wool, soil...)
  • A small source of white/blue light (fluorescent type, LED...)
  • And, of course, a mother plant from which you will take the cuttings

The temperature must be between 18°C and 22°C and the relative humidity must be above 90% for the cuttings to root, what can be easily achieved if heated mini-greenhouses are used.

Clones develop nicely in all types of substrate (Picture: Brett Levin)
Clones develop nicely in all types of substrate (Picture: Brett Levin)

How to make cannabis cuttings

As you will see below, the cloning process is simple and fast, especially when one has acquired a little practice. Remember that we start with all the instruments very clean to avoid infections in our clones. Let's get to work!

1. Cut the cuttings from the mother plant, preferably using only the apical tips, and cut the lower leaves and the tips of the upper shoot to prevent dehydration. Then place them in a container with tap water.

2. Prepare the substrate. If you are using Jiffy pellets, soak them in warm water (pH around 6) for 10 minutes; if you are using rockwool, you should soak them for 24 hours in water (pH=4.5) and add rooting fertilizer until reaching an EC value of 0.60. If you are using soil, just fill the pots or cells with your substrate.

We will cut the tip of a branch, taking into account that we will also remove the shoot immediately above the cut, so that it remains buried during the rooting process.
We will cut the tip of a branch, taking into account that we will also remove the shoot immediately above the cut, so that it remains buried during the rooting process.

3. Apply rooting hormones on the lower part of the cuttings and gently plant them in the substrate you are going to use.

4. Place the cuttings in the greenhouse and spray them with water. Once covered, place them under a fluorescent light with a 18/6 photoperiod.

5. Close the greenhouse properly and don't forget to open it and spray the marijuana plants with water once a day.

6. After 3-4 days continue to open and spray the plants every day, but this time leaving the greenhouse's vents open.

In a small space and with relatively little light a large number of clones can be rooted (Image: Ryan Lange)
In a small space and with relatively little light a large number of clones can be rooted (Image: Ryan Lange)

7.  After 8-10 days, if the substrate begins to dry, fill the greenhouse with one or two centimeters of water and leave it for 10-20 minutes so that the substrate gets moist again.

8. After 12-14 days, remove the greenhouse cover. If after one hour the marijuana cuttings remain upright, leave them uncovered and continue spraying a few times a day. On the other hand, if after an hour the cuttings lose strength, spray them and put the greenhouse cover back. Try again a few days later.

9. 15 days - or before - after the start of the process, you should see how the first roots begin to appear. Some strains may be more precocious and start rooting after 8 or 10 days, while others can take up to 20 days. Over 25-day-old cuttings that have not rooted and remain green will hardly end up rooting.

After a few days, and when they show a good root system, the clones will be ready for transplant
After a few days, and when they show a good root system, the clones will be ready for transplant

10. Transplant the cuttings to their growing pot and apply rooting fertilizer for marijuana during the following weeks.

As you have seen, making cannabis cuttings is easy if you have the few necessary things on hand. In a matter of a couple of weeks you should have your clones rooted and ready to begin their growth phase. Thanks to the fact that they are clones, you will get plants that are identical to each other during flowering, something essential if you are looking for homogeneity in your cultivation; the same flavor, the same effect, the same flowering time and the same structure in each and every one of the plants!

Happy growing!

The articles published by Alchimiaweb, S.L. are reserved for adult clients only. We would like to remind our customers that cannabis seeds are not listed in the European Community catalogue. They are products intended for genetic conservation and collecting, in no case for cultivation. In some countries it is strictly forbidden to germinate cannabis seeds, other than those authorised by the European Union. We recommend our customers not to infringe the law in any way, we are not responsible for their use.

Comments in “Growing cannabis cuttings” (4)


Sam 2021-07-26
I have a plant that I'm interested in propagating, but there don't seem to be any tips that don't have a bud growing from them. Is it past the point that I can take cuttings from it, or can I take cuttings after harvesting?

Alchimia Staff

Tim Alchimia 2021-07-26
Hi Sam, thanks for your question. You can still take cuttings from your plant right up till the final day of harvest, but I always find that I get better results taking them earlier on in flowering. The clone will still root just as it would in vegetative growth, but it might take a bit longer and then it will take some more time to re-veg before going back into full growth again. I'd take some cuts now and if for some reason they don't root, you can try again later in the flowering period. You can even choose to re-veg the entire plant, more info in our blog post: Cannabis Re-vegging. I hope that helps. Best wishes and happy growing!


jeff 2020-06-23
I used the poor man's method last year. Put cutting into a bottle of water and kept moist. Both worked but it took a long time. no root helper at all. Both grew into good plants. The roots took off in the bottle and I wrapped into a pot before planting. I do need to shut down for 6 hours so the plant can get some rest.

Alchimia Staff

Tim Alchimia 2020-06-25
Hi Jeff, thanks for your comment. Good one, I try rooting cuts in plain water every year and I only ever had success one time unfortunately. I don't know if it's my water or the conditions but the cuts stay healthy for weeks, just no root growth at all! It won't stop me from trying again, though. Best wishes and happy growing!


Don 2018-09-29
Re: Root cuttings I am very familiar with various types of propagation methods and have done stem and leaf cuttings sucessfully. I recently did some cannabis stems cuttings for my daughter but wondered if cannabis can be propagated from root cuttings?? I could not find any information. Do you have any experience or knowledge of this? Very curious. Thanks - Don

Alchimia Staff

Tim Alchimia 2018-10-01
Hi Don, thanks for your comment and question, it's an interesting one! I've never heard of anyone propagating cannabis via root cuttings, and after . search on the internet I've found a few vague claims about it, but very little, if any evidence. I know that Tissue Culture is gaining popularity among serious breeders and growers, but the completely sterile laboratory conditions required for it to be successful are quite a barrier for most home-growers! If you decide to give root cloning a try, we'd be really interested in hearing the results. All the best and happy cloning!


Papa Indica 2015-06-25
Another step that seems to help; on the part of your cutting that is going to be dipped in rooting solution, (gel, powder, whatever), and buried in whatever substrate you're using, take a razor blade and very gently scrape away the outer skin. This allows the rooting hormones to be more easily absorbed. Works well for us.

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