How to Clone a Marijuana Plant Without Rooting Hormone

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If you prefer organic cultivation, have concerns about “synthetic” products, or are just running low on your rooting hormone supply, you’re probably wondering if you can successfully clone a marijuana plant without any synthetic rooting hormone. The honest but unsatisfying answer is ... maybe! It’s true that rooting hormones are proven to work while most natural alternatives have very limited supporting evidence, but the alternatives are generally very affordable and safe to try. [1] So check out the list below before your next marijuana cloning effort.

1

No rooting hormone replacement

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  1. The operative word here is “can,” though, because your odds of success are definitely lower than if you do use a synthetic rooting hormone. [2] To try out this method, follow the usual steps for cloning a plant , minus the rooting hormone:
    • Cut a healthy-looking lateral stem—not the main (terminal) stem—from the plant. Make the cut at a 45-degree angle and remove any leaves or stems from the bottom 1/2 of the cutting.
    • Stick the bottom 1/3 of the cutting straight down into a pot containing a moist growing medium. Standard potting soil will work, but many growers prefer rockwool (fibrous cubes) or rooting plugs (also called “peat pellets”).
    • Cover the pot and cutting with plastic or glass and keep it in a warm location that gets partial but not direct light. Keep the soil evenly moist by misting it as needed.
    • Transplant the clone after about 2 weeks, by which time its roots should be about 3 in (7.6 cm) long. Treat it as a normal adult plant from this point on.
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2

Willow shoot extract

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  1. Unlike many synthetic rooting hormone alternatives, willow shoot extract has been studied and appears to be at least somewhat beneficial to root growth. To use it, dip the bottom 1/3 of your cutting into the willow extract liquid or gel before sticking it into your growing medium. [3]
    • To avoid potentially contaminating your container of willow shoot extract, pour a small amount into a little container (like a shot glass) and dip your cutting into that.
    • Powdered willow extracts are also available. In this case, dip the bottom 1/3 of the cutting into the powder until it’s lightly coated.
    • Willow extract can be purchased online for around $15-$30 USD.
    • Here’s the bad news: when studied side-by-side, synthetic rooting hormone was at least twice as effective as willow shoot extract. [4]
3

Aloe gel

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  1. To give it a try, either cut open a fresh aloe leaf or use a packaged gel. Dip the bottom 1/3 of your cutting into the gel until it is lightly coated, then plant it as normal.
    • If you’re not using fresh aloe, make sure to buy 100% aloe vera gel, which is widely available.
    • No scientific studies have tested aloe’s effectiveness as a root stimulant for marijuana plants, and the results with other plant types aren’t all that great—the evidence ranges from promising [5] to barely encouraging. [6]
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4

Aloe and kelp

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  1. Get started by mixing together equal parts of aloe and kelp powders, or stir together aloe gel and liquid kelp. Dip the bottom 1/3 of your cutting into the mixture before planting it.
    • If you’re using rockwool or a rooting plug as a growing medium, you can instead soak the rockwool or plug for 30 minutes in a mixture of water and a spoonful each of aloe and kelp.
    • Shop online for powdered aloe and kelp, or for aloe gel and liquid kelp.
5

Honey

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  1. This is due to its natural antibacterial and antifungal properties. Try it out by stirring 2 tbsp (45 g) of honey in 16  fl oz (470 ml) of boiling water. Let the mixture cool, then dip the bottom 1/3 of your cutting into it before planting. [7]
    • Like many of the alternatives here, honey hasn’t been tested specifically with marijuana cuttings. But it commonly shows up in marijuana growers’ forums as an alternative to synthetic rooting hormones.
    • You may also want to try using undiluted honey. Just dip your cutting into the honey and give it a light coating.
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6

Cinnamon

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  1. Also like honey, it’s a cheap option to try out! Simply dip the bottom third of a fresh marijuana cutting into ground cinnamon until it’s lightly dusted, then stick it in your chosen growing medium.
    • The anecdotal evidence for using cinnamon is based on experiments with succulents (plants like aloe and agave), not marijuana, so definitely take it with an extra grain of salt. [8]
    • There’s no evidence that using fresh-ground cinnamon is more effective than packaged cinnamon powder, but that’s another option you can consider.
7

Turmeric

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  1. Try dipping the bottom third of your cutting in ground turmeric, or combine the turmeric with another potential alternative like honey or aloe. Here again, turmeric has antibacterial and antifungal properties that may protect new root growth, but there’s no strong evidence that it actually promotes root development.
    • Turmeric is easy to find in the grocery store along with other spices.
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8

Apple cider vinegar

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  1. Apple cider vinegar is good for a lot of things, and it may be worth a try as a rooting hormone alternative. Try it out in the typical fashion, dipping the bottom of your fresh marijuana cutting into it right before planting it.
    • While it’s nice to think that vinegar from your pantry will do the job, there’s really only one type of vinegar that has legit supporting evidence as a root stimulant—wood vinegar. Unfortunately, wood vinegar is a byproduct of charcoal production that isn’t widely available as a commercial product. [9]
9

Aspirin

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  1. Some gardeners swear by using crushed aspirin as a rooting hormone alternative, so it’s possible it’ll work with marijuana plants. [10] Others are quick to point out the lack of clear evidence, however. [11] If you want to give it a go, crush a single aspirin tablet, stir it into a glass of water, and soak your cutting in it for 1 hour before planting.
    • Aspirin is acetylsalicylic acid, which is similar to (but not the same as) the salicylic acids that plants produce naturally.
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10

Vitamin C

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  1. There is some evidence that ascorbic acid (Vitamin C) might spur root development in tomato plant cuttings, so it’s at least possible that those results will translate to marijuana plants. [12] To try out ascorbic acid, dip the bottom 1/ 3 of your cutting into Vitamin C powder, or into water with the powder dissolved in it.
    • Look for 100% Vitamin C powder at health and wellness retailers.
    • Some growers call Vitamin C a “garden myth” as a root stimulant (along with aloe, cinnamon, and so on). [13] It’s really up to you whether you want to give them a try.
11

Saliva

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  1. The process here is very straightforward: stick the end of the cutting into your mouth and moisten it with your spit before planting it. [14] You may even want to very lightly chew on the cutting to help the saliva permeate it.
    • While there’s no evidence that human saliva works as a root stimulant, animal saliva does seem to aid in plant growth in the wild. [15]
    • In case you’re wondering: supporters of using human saliva don’t mention any psychotropic effects from briefly sucking on marijuana cuttings.
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Expert Q&A

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  • Question
    Is there a difference when growing from a clone or a seed?
    Aaron Justis
    Cannabis Expert
    Aaron Justis is a Cannabis Expert based in Los Angeles, CA. He is the President of Buds & Roses, a premier Los Angeles Cannabis retailer serving customers and the LA community since 2006. Since 2010, Aaron and the Buds & Roses team have been the proud recipients of 26 High Times Medical Cannabis Cup awards. As a recognized thought leader in the Cannabis industry, Aaron is an active board member of the National Cannabis Industry Association, the California Cannabis Industry Association, and the Greater Los Angeles Collective Alliance. Aaron attended Rock Valley College in Illinois.
    Aaron Justis
    Cannabis Expert
    Expert Answer
    Compared to using seeds, the advantage of cloning lies in the assurance of obtaining an identical copy of the desired plant. When starting from a seed, one must invest the initial two weeks in germination, confirming the plant's gender—usually a female—and nurturing it from the start, involving time and effort. Choosing clones appeals to many because this process has already been completed, allowing them to obtain the precise genetics they seek with less hassle.
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  • Question
    How can I identify a male marijuana plant?
    Aaron Justis
    Cannabis Expert
    Aaron Justis is a Cannabis Expert based in Los Angeles, CA. He is the President of Buds & Roses, a premier Los Angeles Cannabis retailer serving customers and the LA community since 2006. Since 2010, Aaron and the Buds & Roses team have been the proud recipients of 26 High Times Medical Cannabis Cup awards. As a recognized thought leader in the Cannabis industry, Aaron is an active board member of the National Cannabis Industry Association, the California Cannabis Industry Association, and the Greater Los Angeles Collective Alliance. Aaron attended Rock Valley College in Illinois.
    Aaron Justis
    Cannabis Expert
    Expert Answer
    Distinguishing a male plant can be challenging initially, as it may appear slightly thicker or taller. Detecting male plants involves regularly checking for the absence of seed pockets and other signs of seed production, which can be time-consuming and may take a couple of weeks before confirmation. Male plants typically exhibit small seed pockets that need to be removed to ensure optimal bud development.
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      References

      1. ↑ https://philjournalsci.dost.gov.ph/images/pdf/pjs_pdf/vol150no5/rooting_induction_of_mature_pterocarpus_indicus_.pdf
      2. ↑ https://www.rhs.org.uk/propagation/techniques
      3. ↑ https://www.sciencedirect.com/science/article/pii/S057017831100008X
      4. ↑ https://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/insects-pests-and-problems/pesticides/rooting-hormone
      5. ↑ https://www.sciencedirect.com/science/article/pii/S0304423823006519
      6. ↑ https://www.sciencedirect.com/science/article/pii/S0304423823006519
      7. ↑ https://www.ctahr.hawaii.edu/uhmg/news/V21-honey-rooting-Firth.pdf
      8. ↑ https://www.growingmulberry.org/propagation
      9. ↑ https://www.growingmulberry.org/propagation
      1. ↑ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1894700/
      2. ↑ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1894700/
      3. ↑ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6912510/
      4. ↑ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6912510/
      5. ↑ https://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/visual-guides/propagating-plants-by-cuttings
      6. ↑ https://content.ces.ncsu.edu/plant-propagation-by-stem-cuttings-instructions-for-the-home-gardener

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