Skip to main content

If you love to consume CBD-rich whole-flower, check out our Harlequin strain overview. Harlequin is a sativa-dominant, high-CBD strain descended from landrace strains. The result of its hardy genetics produces buds with balanced, relaxing, and clear-headed effects.

What Is the Harlequin Strain?

Is Harlequin strain an Indica or Sativa?

Harlequin is a sativa-dominant cannabis strain known for its exceptionally high CBD content compared to other similar strains. A unique balance of CBD and THC concentration allows you to feel calm with a slight buzz that won’t weigh you down.

Harlequin strain guide. Closeup of marijuana plant.

Harlequin is an ideal strain for first-time users or those who prefer CBD-rich strains. The balance of cannabinoids avoids overwhelming novice users or those who need to be productive during the day.

Generally, Harlequin has a 5:2 ratio of CBD to THC. Analytics labs have measured samples of Harlequin and reported samples between four to 10 percent THC and six to 15 percent CBD.

Average CBD level: 8.5 percent

Average THC level: 5 percent

Terpenes: Myrcene, Pinene, Caryophyllene

Awards: 3rd Place in the CBD Flowers category – Highlife Cup 2019

Strains similar to Harlequin:

Harlequin Strain Genetics

Harlequin strain gets its prized genetics from a Colombian Gold, a Nepali indica, and Thai and Swiss landrace strains. Legend has it that the strain was initially bred by Mr. Green from the House of David Collective.

Mr. Green had his sights on breeding a THC-rich plant to make hash and concentrates, but ended up producing a sativa-dominant strain renowned for its high CBD content.


Harlequin’s complex and subtle aroma has herbal, pine, peppery, and sweet notes. Unleash the inner musky and mango flavors using a portable or desktop vaporizer to consume your buds. Its sweet and syrupy flavors will leave you wanting more.

This strains most common terpenes include the following:

Myrcene is one of the most concentrated terpenes among cannabis strains. You can’t miss its spicy and peppery aroma, also found in mangoes, thyme, and lemongrass.

Myrcene is thought to be responsible for analgesic and anti-inflammatory effects.

Pinene smells like Christmas. A distinct piney aroma is commonly found in terpenes and can be used for anxiety, inflammation, and pain. Pinene-rich strains include OG Kush, Haze Berry, Remedy, and God’s Gift.

Caryophyllene has a blend of earthy, musky, and citrus notes that can also be found in black pepper, cinnamon, and cloves. Caryophyllene is believed to have antioxidant and anti-inflammatory properties and could help reduce depression and anxiety.

Harlequin Strain Effects

Harlequin’s effects are invigorating and mood-boosting. Consuming this high-energy sativa can leave you feeling alert and concentrated on the task at hand. Harlequin has won fans around the world for its ability to provide relaxation without sedation.

Its CBD-rich trichomes are beloved for their effectiveness as a medical treatment for chronic pain and anxiety without the high. CBD can provide non-intoxicating relief without compromising its analgesic properties.

Feelings: Relaxed, Happy, Uplifted, Focused, Energetic

Harlequin Products: Whole-Flower, Cartridge, Pre-Roll, Isolate, Shatter

Growing Harlequin Weed Strain

Those with a brown or green thumb can easily grow the Harlequin strain. Buy feminized seeds online or clones at a dispensary nearby. Growers recommend planting this strain early in the planting season due to CBD’s quicker deterioration rate compared to THC.

Under optimal growing conditions, Harlequin weed can produce tall plants, a high yield, and large colas with bright orange-and-red pistils. The plants respond well to training to maintain proper airflow in the canopy. It can grow in soil or hydroponic mediums.

This strain can grow indoors or outdoors and prefers temperatures between 72º and 85º F. This sativa-dominant strain can handle high humidity levels as long as you ensure there’s a good airflow between plants and branches, which may need support due to the size of the buds.

Growing Difficulty: Easy-Moderate

Plant Height: 78 inches+

Flowering Period: 7-9 weeks

Yield: 3-6 ounces per square foot

Check out our blog post on how to maximize CBD production during its growth cycle. This CBD-rich strain, in particular, has a longer-than-normal drying time for cannabis that can last up to three weeks compared to the average of seven to 10 days due to its heavy and frosty resin.

Harlequin Strain Overview

The sativa-dominant Harlequin cannabis strain is well-known for having a high concentration of CBD. This strain has special qualities that are valued for their therapeutic qualities. It is a hybrid of a Thai sativa, a Swiss landrace, and Colombian Gold.

There are over 300,000 jobs in the cannabis industry. CTU trained me for one of them!

marijuana extraction course - Johanna Rose
Makes $24.50 @ THC +

Patients who use medical cannabis to treat pain or anxiety and don't want to experience substantial psychoactive effects especially like it. Harlequin has minimal psychoactive effects, yet it can nevertheless give off a “warm, glowy feeling.”

Harlequin has a 25:75 indica to sativa ratio, meaning that sativa predominates. With THC concentrations ranging from 7–15% and CBD levels between 4–10%, the ratio of CBD to THC is approximately 1:1. The strain Harlequin stands out from the others because of its equal amounts of THC and CBD.

Harlequin is renowned for having a flavor that is sweet and mango-like, and when it exhales, it frequently has a creamy, woodsy undertone.

Harlequin is a compelling option for individuals looking for the medicinal advantages of cannabis without experiencing severe intoxication effects because of its distinct THC profile and flavor combination.

Marijuana Certification

Are you interested in growing your own cannabis plant or garden? Sign up for Cannabis Training University’s online cannabis classes. Learn everything you need to know about starting your grow from scratch and getting your cultivator certification.

Gavin Kushman. Cannabis strain writer in a cannabis garden
Gavin Kushman

Gavin is a worldly adventurer and cannabis connoisseur, embarking on journeys that take him to the far corners of the globe to explore and document the varied effects, flavors, and histories of both renowned and lesser-known strains. From the misty high-altitude farms of the Hindu Kush highlands to the vibrant cannabis cafes of Amsterdam, Gavin's quest for knowledge spans continents. A recognized authority in the cannabis industry, he frequently lends his expertise to leading publications such as Cannabis Training University, where his captivating blog articles chronicle his unique experiences with different cannabis strains.

Enroll Now