Harlequin Cannabis Strain Review (Origin, Potency, Benefits)

Medical benefits, Facts and more…
MarijuanaBreak Staff MarijuanaBreak Staff / Updated on July 2, 2019

Harlequin Cannabis Strain

Long before there were clowns, there was a Harlequin, a comic servant character from the Italian Commedia dell’Arte, which translates to ‘the comedy of artists.’ In Italian, the name Harlequin is Arlecchino, an acrobatic shapeshifter who was comically bad at hatching schemes.

He is also famous for being a terrible messenger who was often distracted and forgot what he was supposed to tell someone. Indeed, one suspects the character ‘Baldrick’ in the famous Blackadder comedy series (watch British comedy sometimes, people!) is based on Arlecchino. The Harlequin is a clown and recognized by the diamond-shaped patches that were part of his attire.

It is hard to say if the Harlequin marijuana strain is named after this famous character, but it is certainly as unique and diverse! It is one of the best-known strains because it contains a high level of CBD and a reasonable level of THC, a rarity in the world of weed.

What is the Harlequin Strain?

Harlequin weed is every bit as mixed up as Arlecchino in terms of its parentage. It is a sativa-dominant hybrid (up to 75%) and is a cross of a Swiss Sativa, Nepali Indica, Thai Sativa, and Colombian Gold. As you can plainly see, it is not your ordinary, garden-variety marijuana strain.

Like the Harlequin of lore, who wore sharply contrasting colors such as orange and purple, or yellow and red, the strain is a sharp contrast of CBD and THC. It is alleged that the strain was initially bred to be a hash-producing crop, but ultimately became one of the most sought-after medicinal marijuana strains on the market. It is believed to have been created by a breeder called Mr. Green of the House of David Collective.


The Harlequin marijuana strain is a sweet-smelling plant which fills the room with a pleasant aroma. You may initially get notes of wood and soil, but then you might notice the creamy vanilla notes that get your attention. It isn’t a pungent plant by any means, and it won’t linger in a room for long. Some users claim they get hints of mango, too.

Harlequin Marijuana Strain


Although there is a faint sweetness on the tongue, you may be surprised by the taste of Harlequin. It offers a potent herbal flavor along with pine notes. When you smoke it, you’ll probably notice a creamy, woody flavor that hits the spot.


The buds of this strain are round, dense, and have a forest green color. The rusty orange hairs stand out against this background, as do the amber trichomes.

Harlequin Strain Grow Info

Once you get Harlequin strain seeds, your best option is to grow the strain indoors where you have better control over the climate. If you insist on growing it outside, you need a warm climate with moderate to low humidity. Residents of Colorado, for example, often complain that the region is too humid to grow this strain outside.

On the plus side, Harlequin has a high resistance to pests and mold, as long as the humidity level is kept in check. Make sure the relative humidity (RH) level is below 65% by the beginning of the vegetative stage, and lower it weekly until it is below 55% by the time your plants reach the blooming stage. The RH can be 30-40% near harvest time. When grown outdoors, Harlequin can yield up to 21 ounces per plant.

The yield is even higher indoors, up to 25 ounces per square meter planted. You can increase the overall yield by engaging in low-stress training (LST) or high-stress training (HST) techniques. When you get these methods right, the entire plant is exposed to light and has enough airflow. A failure to prune your Harlequin plants could result in bud rot.

Flowering time for Harlequin is 8-9 weeks. However, if your goal is to grow plants with a high level of CBD, it is best if you harvest your crop a little earlier than normal. Remember, it is okay to harvest once more than half of the pistils have changed color. Other growers prefer the trichome method, and will only pluck the flower once the trichomes are milky white with a mushroom head.

THC Content – Highest Test

There is an array of Harlequin phenotypes on the market. As such, you can find versions of this strain with just 7% THC, and others with a whopping 15%.

CBD Content – Highest Test

It is here where things get really interesting. There are cuts of Harlequin known to have between 10% and 15% CBD. However, we’ve heard that a different phenotype contained 1% CBD, which makes you wonder if it was Harlequin that was tested. As you can tell, the sheer range of possible THC and CBD levels means you could get very different ratios.

What Can I Expect When I Use Harlequin Weed?

The exact effects depend on the cut of Harlequin you receive! According to Mr. Green, the strain feels like a sunny day. He went on to say that he feels a warm, glowing sensation that radiates from within. While this may not be the case for everyone, the high CBD content means you shouldn’t feel an intense psychoactive high.

In essence, Harlequin is an uplifting strain that makes you feel happy. As it is Sativa dominant, you won’t suffer the sedative effects of a body high. As a result, it is an excellent daytime option if you want to feel ‘lighter’ while getting things done. Some users claim that Harlequin helps them become more creative. It may also prove useful as a sociable strain in case you need to go out but feel nervous about being in a crowd.

Medical Benefits of Harlequin Marijuana

Harlequin Cannabis Strain Review

At its heart, Harlequin is a medicinal marijuana strain. It is primarily used as a painkiller and is prescribed to individuals looking for relief from muscle spasms, headaches, joint pains, and migraines. As it elevates your mood and helps you feel more relaxed, you could try this strain if you are suffering from depression or anxiety.

Harlequin has gained a reputation as an anti-inflammatory, which is why it is so popular amongst individuals with joint pains. If you are a first-time user and worried about how you will react to marijuana, Harlequin is a viable option.

Possible Side Effects of Harlequin Weed

Due to the combination of THC and CBD, Harlequin doesn’t share the same side effects as other marijuana strains. On very rare occasions, users have reported mild cases of dizziness, anxiety, and paranoid thoughts. In general, however, the biggest issue with this strain is cottonmouth, so keep a bottle of water handy.

Final Thoughts on Harlequin Cannabis

Harlequin is a gentle introduction to the world of marijuana. It offers a nice combination of THC and CBD, although the precise ratio depends on the cut. It shouldn’t cause you to become excessively high and is the ideal strain for those looking to feel relaxed, happy, energized, yet completely functional.

It isn’t a difficult strain to grow but remember, if you want to get a higher level of CBD, try and harvest this strain as early as you can without compromising the quality.

  1. shawn hazeleur
    Where do you find Harlequin? Dispensaries don't seem to carry it.

    Great article, you here a lot of good things about medicinal strains like Harlequin, however I looked in 3 different dispensaries in northern California and they did not carry medicinal marijuana. Yes…I say this again…they did not carry high CBD lower THC products. Only weed that gets people very stoned. These places did carry CBD oil at various ratios but no cannibus that was grown with the benefits aging sick people would prefer.

  2. Janice Hunter

    If you like citrus and mango, you will most likely love this strain. And the bad breath after smoking this, goes away easily with lemon juice later on. No jitters, no dizziness, it gives a lovely high.

    How to get it or oil with higher thc to mellow and relax back pain.

    How to get it ?

  4. Charlene Blevins

    How could I get some for my chronic back pain? At this point I’d do anything! My life has literally become useless. I have zero quality of life. And my liver is failing me because of the medicines they had me on.

    1. Stormy
      Pain relief and other notes

      I endur way too much pain, but how does one get that through to their doctors? They think I am ‘faking’ it to get opiates, ha ha ha. My doctors are new, we moved to another state where I had to find new doctors. I might not have moved had I known how valuable it is to be KNOWN by your doctors. 3 and 4 decades known. Aging changes chemisty, btw.

      After a’ few’ surgeries one gets lots of opiates to try. I had a pain specialty doctor also a spinal surgeon and sports medicine doctor who watched me and all my ‘medications’ carefully. He told me he had no problems with marijuana but to be careful taking pot because they ARE some strains of pot out there that react with opiates fatally. Yup, I said fatally and I wouldn’t have believed it either if I hadn’t experienced it TWICE.

      One puff while on dilaude after spinal surgery… and before I could expel, it WAS like a freight train and I was violently ill. Violently. For the entire night. One puff. Don’t be alone if this ever happens to you. People go to sleep and never wake up. Honest. Someone played with the Genome of a marijuana species to enhance THC a few decades ago. This was in the ‘news’ for a few days back in the day and then disappeared. They call it being allergic to pot, now.

      My point is, purchasing pot that has been tested, the facility upstanding lots of testing… there is little likelihood one will run into these particular strains, and no, I don’t remember any names being thrown around. Just street pot from podunks in a podunk town?

      All drugs affect different people differently. All drugs. Each of us is a bag of chemistry with similar chemisty but everyone experiences drugs uniquely. For instance, I am not addictable to opiates. Nor addictable to tobacco. Dependency is completely different than addiction. I am addicted to my Effexor, my antidepressant. And quite pissed that I ‘allowed’ myself to be put on a drug by doctors that one is NOT able to just stop. In fact, I managed to get myself off of Effexor (Venlafaxin), very very slowly and methodically reducing the amount until I was actually OFF for two weeks. Two weeks of the world was gray and running out of tears? and I BEGGED to go back on…because the doctors didn’t have a substitute or alternative. The color of the world came back. If I miss just one pill I am dizzy and nauseous and miserable. Keep in mind antidepressants do not ADD feel good hormones to your body they simply stop the sequestration of Serotonin and Dopamine and there’s another one….anyway. We humans are taking antidepressants because all of us are experiencing far more stress than we have evolved to be able to handle and sequestration of feel good hormones, such as at the nerve endings where messages are sent to and from the brain and spinal cord. Too much firing of messages, too much constant stress we take for normalcy is truly making a world of humans unable to accept the reality of today and antidepressants work wonders.

      Kratom is supposed to be one of these drugs for some people. Also works for pain (especially Red Cap Kratom strain) and a whole list of possible BENEFICIAL effects for some people. So, of course the governments who do not like healthy flocks of humans are trying to make Kratom illegal. Illegal and put in the same category as two other completely different drugs; marijuana and LSD. Very very bad and naughty government. Pharmaceutical companies with lots of money don’t want their products to be made worthless by something they can’t control. I think it is funny that they are actually getting people to try Kratom with all the negative publicity. What does that say about our governments? Not much faith left that is for sure.

      Marijuana ‘evolved’ with us humans or so I’ve heard. Otherwise there would be no reason that our bodies have receptors JUST FOR MARIJUANA. And if any of you think synthetic drugs are stronger than organic drugs you need to listen up. Organics are powerful chemicals. In fact all of our synthetic or artificially made drugs use the templates of the chemistry of plants. Nicotine? Permectrins?

      There is no such thing as an addiction to Marijuana, nor Kratom, nor Essiac tincture, Carnivora, Rick Simpson Oil…but don’t expect one ‘drug’ to work for you as it does your friends. We are all guinea pigs for our own well being to be our own doctors and guess what that means? Get to know the chemistry and specifications of anything you take and keep a log book of what you took and what time and how it made you feel. Pain is tricky. You get inured to pain and when something works you have to cognantly notice a difference and a log book will help you ‘tune in’ to your body and drugs. Don’t just expect something to be magic. Pain medications such as Marijuana and high CBDs and Kratom are SUBTLE and help tremendously. Grins, do not tell your doctor about Kratom. They will stop any pain meds that you are getting.

      1. Shawn T Hazeleur
        I know from experience that Kratom is very addictive. Yes it helps with pain and it is a slight mood enhancer, but Kratom is easy to start abusing and it can cause horrible constipation. One should have a bottle of Milk of Magnesium in the frig and or p-corlite when this happens to them. Canibus products I've never noticed any addictive effect. Kratom is addictive.

        I agree with you that cannibus and opiates don’t mix well. You have to be very careful not to take both. I Think Medicinal Cannibus (high CBD low THC) can help and is not addictive like Opiates. Kratom although people will fight to the death protecting it, is dangerous and has to be used sparingly. This is hard to do when it is addictive and I know a few people outside myself who had to stop taking it. I went through days of withdrawls even with tapering off. I give this information in the hope that people will look towards harlequin or high CBD products and stay away from opiates and kratom.

  5. Booker
    i didn’t know she is this loved

    I bought the Harlequin clone only, 1-2 weeks after Harbor Side released her a few years ago and I continue to maintain her as a mother plant. I would love to grow her commercially here in Southern California or grow her commercially for a dispensary in Las Vegas. I’m truly trying to find a reason to keep this ( speciality) high cbd plant in my library ( garden ). I grow indoors, organically ( no pesticides nor herbicides ) and in soil, but I’m a true boutique farmer ( I grow only a pound every 2 months/grow cycle )

  6. Hester R.
    Harlequin needed in Michigan

    Harlequin is a highly versatile strain that should be in all plant based medicine cabinets. The trouble is…..you can’t find this strain anywhere in the metro-Detroit area. If you are a grower, please come to Michigan and grow this strain! I believe these high CBD strains will end up helping so many, if only we could find some.

  7. Joni

    I also love this strain. I do not get the paranoia like you do if you use any weed from the street. I love that I can function better. I suffer from anxiety, arthritis as well as neurologic and knee pain . I thank God that He has created this plant. I only pray that the government takes away the prohibition federal law on weed.

  8. Carmen Batty

    This is one of my favorite strains, I love it

  9. Ann Orth

    Bought it a week ago. Am really enjoying the effect of this strain

  10. Mary Westervelt

    Thank you for the info, nice article!

  11. Karla Jackson

    I find Harlequin as an extraordinarily beneficial strain for chronic pain.

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