Harlequin Strain

May 21, 2021

Harlequin is a special strain for many reasons. A diverse parentage, this hybrid has the best of all worlds, not to mention its solid CBD levels and ability to cure many pain conditions. This is what makes this strain indispensable, and what will continue to make it a popular sativa for recreational and medical users alike.

Sativa/Indica % Indoor Yield Outdoor Yield Flowering Period
75% / 25% 25 ounces per square meter21 ounces or more per plant8 – 9 weeks indoors, mid-October outdoors.

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This sativa-dominant strain has a very interesting parentage. Harlequin is a descendant of Colombian Gold, Thai and Swiss landrace sativas and a Nepali indica. This special combination is sure to deliver a clean and energizing high, that is guaranteed to provide the best of all sativa effects.

Harlequin is an ultra-diverse combo hybrid, that is just brimming with all sorts of superpowers. This hybrid just boasts of a really high CBD level, around 10-15%, which is a clear indicator of its medicinal abilities. This is what makes this strain a favorite among doctors who are looking to prescribe something potent for the fight against chronic pain.

Information About Harlequin Strain

ORIGIN Colombian Gold, Thai sativa, Nepali indica mixed with Swiss Sativa
EFFECTS Relaxed – 10
Happy – 9
Uplifted – 8
Focused – 8
Energetic – 6
FRAGRANCE Citrus, earthy, mango, sweet
FLAVORS Earthy, woody, spicy, herbal
Dry mouth – 10
Dry eyes – 6
Dizzy – 3
Anxious – 3
Headache – 2
MEDICAL Pain – 10
Stress – 9
Depression – 6
Inflammation – 5
Headaches – 4
THC CONTENT % 7%-15%
CBD % 10%-15%
INDICA/SATIVA % 25% / 75%
INDOOR YIELD 25 ounces per square meter
OUTDOOR YIELD 21 ounces or more per plant
CLIMATE Warm but not too warm, and humidity around 50%

* 10 is the highest
* 1 is the lowest


This powerful hybrid is a great smoke for when you are looking to find some mental release, without feeling tired. Harlequin has inherited all its positive effects from its parentage. This strain is a great relaxant, with an ability to calm the mind, and allow you to stay focused and on point.

Harlequin is first and foremost uplifting and a happiness-inducing bud. This sativa dominant strain will let you keep your functionality 100%, meaning it is the perfect smoke to start a day with, because instead of slowing you down, this strain may actually help you get stuff done, and get it done while feeling inspired and creative.

Harlequin will turn you into a ball of energy, and let you be social and forward-thinking, all while feeling invigorated and brimming with ideas.


Harlequin is great at keeping you focused, and will let have you completing your usual tasks with more accuracy and vigor.


Harlequin is a sweet-smelling plant, that will fill the room with a pleasant and natural aroma. It’s not particularly strong smelling, which is perfect because its earthiness isn’t overwhelming, it is just right. This hybrid will leave a gentle whiff of fresh tropical mangoes in the air.


This hybrid has a very strong herbal flavor, that is cut in with some spiciness. Harlequin tastes mostly earthy, mixed in with fresh pine notes. This strain’s smoke has a creamy, woody flavor to it that is both pleasant and invigorating.

Adverse reactions

Harlequin has a few adverse effects, mostly relating to its potency. This is why sometimes you may experience a little dizziness when smoking this particular strain. This dizziness may also lead to a slight feeling of anxiety and mild paranoia

This hybrid can make you feel slightly parched, giving you a sensation of a dry mouth, and also dry eyes. Harlequin can also sometimes give you a slight headache on the comedown, although this is something that doesn’t occur very often.


Harlequin is a vigorous painkiller, all thanks to its way-above-average CBD levels. This hybrid has proven to be very successful at nixing common pains such as migraines, headaches, muscle spasms and joint pains, and is therefore very highly recommended by doctors for their long-suffering patients.

This hybrid is also talented in the stress department. Harlequin is a great mood-altering smoke. This is why it provides great support to patients who suffer from chronic stress and all its debilitating symptoms.

Here are some amazing seed deals. Buy 10 and get 10 seeds for free!

Depression and anxiety stand no chance against this mood-elevator, because of its ability to conjure up the happy vibes. Harlequin is also perfect for the treatment of inflammation, such as joint pains, because it is a strong anti-inflammatory agent, and will rid you of those aches and pains instantly.


Harlequin produces notoriously high CBD levels, and if this is what you are aiming for, then it is recommended to harvest this pretty flower early. This hybrid is usually covered in a thick layer of trichomes when it is ripe for plucking.

Humidity needs to be controlled well, and in indoor settings, Harlequin needs appropriate trimming to allow a healthy airflow. This plant likes warmth, but don’t go crazy on the heat so she doesn’t wither and dry up.

Flowering Time


This strain takes an estimated of 8 to 9 weeks to flower and be ready for a harvest. Harlequin can reap an average of about 25 ounces per square meter, of good, potent bud.


Harlequin is relatively easy to cultivate, as long as you pay close attention to the humidity levels, which should not exceed the recommended 50%. This hybrid can yield an average of about 21 ounces per plant during harvest.


  1. Nepali Indica
  2. Thai Sativa
  3. Colombian Gold
  4. Swiss Sativa

FAQ About Harlequin Strain

What is the Harlequin strain yield?

Harlequin yields 25 ounces per square meter indoors and 21 ounces or more per plant outdoors.

How much THC does Harlequin strain have?

From 7% to 15%

What are the origins of the Harlequin strain?

Harlequin was created by mixing Colombian Gold, Thai sativa, Nepali indica and Swiss Sativa together.

Have you ever smoked or grown your own Harlequin? Please let me know what you think about this marijuana strain in the comments below.


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The founder of I Love Growing Marijuana, Robert Bergman, is a marijuana growing expert that enjoys sharing his knowledge with the world. He combines years of experience, ranging from small-scale grows to massive operations, with a passion for growing. His articles include tutorials on growing... [read more]

Harlequin Strain Strain Review

Energizing pain reliever

Rated 5 out of 5
29 April 2021

Grew from clone in 2018 outdoors. 7ft.tall harvested on Oct 8th. Produced over 2lb. Wife makes honey tincture from our bee hives. Very easy to grow. Great for pain. Gives me energy to get the job done.Still have some curing in jars just gets better with age.Highly recommend! Love your website


CBD for the win!

Rated 5 out of 5
24 March 2021

I’ve had migraine attacks ever since I started working nights. This strain worked wonders for me – thanks to Harlequin’s CBD content! I can stay focused without having to endure any pain. It’s a creamy, earthy smoke that leaves me feeling invigorated.


Harlequin has the power to make you feel good physically and mentally.

Rated 5 out of 5
18 May 2020

I’ve never felt better after smoking weed. Harlequin has the power to make you feel good physically and mentally. For those who spend a lot of time at your desk, I would recommend Harlequin to help you get through a long day of work. Just make sure you space it out properly as too much at once can make you space out.

Frank P. Rafferty

This is 100% my favorite hybrid!!

Rated 5 out of 5
28 April 2020

This is by far one of my favorite hybrids. You get a nice enjoyable high all the while remaining productive. If you’re someone who likes to wake n’ bake, Harlequin is a great way to start your day.
I totally love the herbal flavor it packs, but be careful not to smoke too much at once. Due to its potency, too much Harlequin can leave you feeling dizzy and spun out. The right amount though will give you a pleasant high to help you through those “wash” days.

Michelle Collins

Please Post Your Comments & Reviews

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  1. By George Barnett ,22 Feb 2017
    Been growing H. for about a year. Indoor and out. Indoor is better. Use the outdoor for coconut oil. 5 different H's going now for cloning. Can send pictures. Thanks for your post.
  2. By Dee ,05 May 2017
    Hi, where can I find Harlequin seeds?
  3. By Green Crack Strain Review – I Love Growing Marijuana ,24 May 2017
    […] G13 | Girl Scout Cookies | God’s Gift | Golden Goat | Gorilla Glue #4 | Grape Ape | Green Crack | Harlequin | Headband |Hindu Kush | Jack Herer  | LA Confidential | Lemon Haze | Lemon Kush […]Read More
  4. By j ,01 Sep 2017
    I do not see Harlequin seeds here. Will you be adding them to your inventory?
    1. By Roy ILGM ,04 Sep 2017
      We might J. Robert's currently working on expanding our collection, we'll just have to wait and see :)
  5. By Chief Nozzle-Washer at ChickieNob Farms ,18 Sep 2017
    I would LOVE it if you started carrying Harlequin seeds! I'm a medical patient who recently discovered the strain at my local dispensary ... and I would LOVE to add it to my own garden. I have PTSD, suffer from […]Read More
  6. By Allainyaha C Matthews ,24 May 2018
    I am.growing a strain of Harliquin i crossed with TUT, it buds look more like Harley, its aroma is sweet pungent, almost enchanting. I use a special.formula throughout the grow, my own mix. I surpised.at how how lovely it smells, […]Read More
  7. By Gene K Lilinoe ,25 May 2018
    I have a 15 plant med grow in WA. One of my girls is a Harley-cross. She (along with the others) is a heavy feeder 8 weeks into veg. We have another 12 weeks before before the natural light flip. […]Read More
  8. By Steve ,20 Aug 2018
    Hi When you say 8-9 weeks to flower with indoor growing do you mean from the first signs of white hairs or from when you switch to 12/12 lighting?
    1. By latewood_ILGM ,22 Aug 2018
      Steve, Yes and yes...The 8-9 weeks is an approximate timeline. Not meant to be to the day. Harvest by trichomes. Hope this helps. :)
  9. By KB ,08 May 2019
    By the way, thank you for the Widow pack, our Black widow is growing like a champ. If you were to expand your collection I would love not just HarleyQuinn but Sour Tsunami as well. I fell in love with […]Read More
  10. By Ang ,28 May 2019
    Is it true that Harlequin is a clone-only strain, meaning that in order to cultivate it, and you'd need to obtain clippings from a mature plant? I've purchased seeds from a distributor, and now I'm wondering...
  11. By latewood ILGM ,20 Jun 2019
    Ang, Yes. Harlequin is a clone only strain. The originator of the strain passed away in 2014 and his buddy is cloning the Mother for all.
    1. By Mojo Jojo ,30 Jun 2020
      I've seen a few places offering feminized Harlequin seeds, are these going to be essentially re-breeding from the other 4 strains, and any hints on how to obtain clones?
  12. By gregg ,17 Apr 2020
    Just got harlequin seeds from you folks. If it is a clone only strain, what is the true nature of the seeds I purchased ? Thanks
  13. By Purple Haze Cannabis Strain Information & Review – ILGM ,29 Apr 2020
    […] G13 | Girl Scout Cookies | God’s Gift | Golden Goat | Gorilla Glue #4 | Grape Ape | Green Crack | Harlequin | Headband |Hindu Kush | Jack Herer  | LA Confidential | Lemon Haze | Lemon Kush […]Read More

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