- Harlequin is a hybrid Sativa strain originating from USA, dating back to 2007.
- Lab tests place its THC content at approximately 5-10%.
- Its lineage runs through Colombian Gold x Nepali Landrace x Thai, making it a key reference point for breeders.
- 2 documented strains descend from Harlequin, including modern market favourites.
- Dominant terpenes: Pinene, Myrcene, Limonene — driving its signature aroma and effects.
About Harlequin
Harlequin is arguably the most influential high-CBD strain in modern cannabis history. Bred by Flo White at Abraxas Seeds in the late 2000s, it was created specifically for medical patients who needed the therapeutic benefits of CBD without the intoxicating effects of THC. The strain reliably produces an 8–12% CBD to 5–10% THC ratio — a pharmacological consistency virtually unheard of in cannabis at the time. Its terpene profile is dominated by bright mango, citrus, and sweet tropical fruit with earthy undertones, giving it a remarkably approachable, fruit-forward aroma. Unlike many CBD strains that taste bland or hay-like, Harlequin delivers genuine flavor alongside its therapeutic effects. The high is gentle, clear-headed, and functional — ideal for daytime use, anxiety relief, pain management, and inflammation without any cerebral fog or paranoia. It became a staple in medical dispensaries across the United States and is one of the most studied CBD-dominant strains for its reliable, predictable pharmacology.
Flavor Profile
The Story & Lineage Origin
🌿 1. The Birth of Modern CBD Breeding
Harlequin was created by Flo White at Abraxas Seeds in the late 2000s, during a period when the medical cannabis community was desperately seeking high-CBD cultivars. At the time, virtually all high-THC strains dominated the market, leaving patients who needed CBD without an effective option. Flo White's breeding program sought to change that by combining elite landrace genetics to produce a strain with reliable, consistent CBD output — a goal that sounds simple but had defeated nearly every breeder who attempted it.
🧬 2. The Genetics: Colombian Gold x Nepali x Thai
Flo White built Harlequin from a three-way sativa foundation: Colombian Gold (the legendary South American landrace prized for its clear, energetic high), a Nepali landrace (contributing earthy, hashy depth and structural resilience), and a Thai sativa (adding tropical terpene complexity and cerebral uplift). The goal was a plant that could reliably express high CBD without sacrificing the flavor, vigor, or aesthetic qualities that made cannabis cultivation rewarding. The cross succeeded in producing a plant that consistently expressed CBD levels above 8% — remarkable at a time when most strains tested below 1%.
💊 3. The CBD Revolution
Harlequin arrived at exactly the right moment. Medical cannabis patients — particularly those treating epilepsy, anxiety, chronic pain, and inflammation — had limited options. THC-dominant strains worked for some but caused anxiety, paranoia, or intoxication that interfered with daily life. Harlequin offered a way to consume cannabis and remain fully functional while accessing CBD's well-documented anti-inflammatory, anxiolytic, and neuroprotective benefits. Its consistent 5:1 CBD-to-THC ratio became a benchmark that other breeders would use as a reference point for decades.
👨👩👧👦 4. The Harlequin Family
Harlequin's influence extended far beyond its own flowers. It became the foundation for an entire family of high-CBD cultivars. Harle-Tsu (Harlequin x Sour Tsunami), created by Lawrence Riddle of Abraxas Seeds, became a beloved CBD strain in its own right — prized for its exceptional resin production and towering CBD content reaching 20%+. Pennywise (Harlequin x Jack the Ripper), created by TGA Subcool Seeds, brought Harlequin genetics into the cerebral sativa world. Both descendants spread Harlequin's genetics through medical breeding programs worldwide.
🏥 5. Harlequin's Lasting Legacy
Harlequin remains one of the most studied cannabis strains in scientific literature. Its predictable CBD-to-THC ratio made it ideal for clinical research examining CBD's effects on seizure disorders, anxiety, and inflammation. The strain's success proved that deliberate, goal-oriented breeding could produce cannabis with specific, reproducible cannabinoid profiles — a concept now central to the modern wellness cannabis market.
This strain is a staple of Amsterdam coffee shop menus. Check current availability and prices on DAM Live →
Find it on DAM Live: Browse Harlequin across Amsterdam Coffee Shop Menus, Amsterdam Cannabis Guides, or see its live Amsterdam price index →
Live Amsterdam Pricing
See real-time prices, availability, and shop locations for Harlequin at Amsterdam coffeeshops — updated daily.
View Live Menus →Where to Find Harlequin in Amsterdam
Harlequin is a popular strain on Amsterdam's coffeeshop menus. Prices and availability change daily based on supply, quality, and seasonal harvests.
- Centrum / De Wallen — Most tourist-facing shops stock popular strains like Harlequin
- Bedford Factory (Outer Space) — Premium selection with quality-tested Harlequin
- Barney's Gourmet Flowers — High-end Harlequin with detailed lab reports
- Grey Area — Curated Harlequin selection, limited stock
- LOF Amsterdam — Wide Harlequin variety with delivery options
For live pricing, menu availability, and shop locations — visit DAM Live →
Genetic Background
Three-way sativa cross combining Colombian Gold, Nepali, and Thai landraces
Phenotypes & Cultivars
Harlequin is available in the following phenotypes and cultivars:
Terpene Profile
Harlequin is dominated by Pinene, Myrcene, Limonene. These compounds shape the strain's aroma, flavor, and reported effects.
Frequently Asked Questions
What is the THC percentage of Harlequin?
Harlequin typically tests at 5-10% THC content in lab results, though actual potency varies by phenotype, growing conditions, and harvest. As a sativa-leaning strain, the THC delivers an uplifting cerebral experience.
Harlequin strain review — what to expect
Harlequin is known for Focused, alert, calm, relaxed, clear-minded, non-intoxicating at typical doses. The strain that launched the modern CBD revolution. Harlequin delivers a consistent 5:1 CBD-to-THC ratio with mango, citrus, and tropical fruit terpenes — gentle, clear-headed, and entirely anxiety-free. Bred by Flo White at Abraxas Seeds, it became the genetic foundation for an entire generation of high-CBD cultivars. The aroma profile features mango, citrus, earthy, tropical fruit. Dominant terpenes: Pinene, Myrcene, Limonene.
What are the phenotypes of Harlequin?
Harlequin expresses several phenotypes and cuts, including Harlequin, Harle-Tsu, Swiss CBD. The dominant phenotypes often show subtle differences in structure, flowering time, color expression, and terpene balance while sharing the same core genetics.
What is Harlequin crossed from?
Harlequin was bred from Colombian Gold x Nepali Landrace x Thai. Detailed ancestry: Three-way sativa cross combining Colombian Gold, Nepali, and Thai landraces. This cross produces the strain's characteristic effects, terpene profile, and growth pattern.
Is Harlequin available in Amsterdam coffee shops?
Yes — Harlequin is found on Amsterdam coffeeshop menus. Live Amsterdam pricing and shop availability is updated daily on DAM Live.
What terpenes are in Harlequin?
Harlequin is dominated by Pinene, Myrcene, Limonene. These aromatic compounds shape the strain's signature flavor, aroma, and contribute to its reported effects through the entourage effect.
How much does Harlequin yield and how long does it flower?
Harlequin has a flowering time of 8-9 weeks and produces moderate to high yields. Plants reach tall height, making it better suited for larger grow spaces with vertical room.
What is Harlequin and where does it come from?
Harlequin is a sativa cannabis strain that originates from USA. It belongs to the 2000s era of cannabis genetics. The strain that launched the modern CBD revolution. Harlequin delivers a consistent 5:1 CBD-to-THC ratio with mango, citrus, and tropical fruit terpenes — gentle, clear-headed, and entirely anxiety-free. Bred by Flo White at Abraxas Seeds, it became the genetic foundation for an entire generation of high-CBD cultivars.
What is the genetic background of Harlequin?
Harlequin has the following ancestry: Three-way sativa cross combining Colombian Gold, Nepali, and Thai landraces.
Is Harlequin indica or sativa?
Harlequin is a sativa cannabis strain. Learn how in indica vs sativa classification differs in our strain guide.
What does Harlequin smell and taste like?
Harlequin has a Mango, citrus, earthy, tropical fruit aroma, with flavors described as Mango, tropical fruit, citrus, sweet earth. Its dominant terpenes are Pinene, Myrcene, Limonene.
What are the effects of Harlequin?
Users report Focused, alert, calm, relaxed, clear-minded, non-intoxicating at typical doses. As a sativa-dominant strain, it leans toward uplifting cerebral effects.
Medical Applications
Harlequin is commonly associated with: