Harlequin by NorStar Genetics
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Long before CBD was a trendy additive at your local coffee shop, Harlequin was quietly changing the medical cannabis landscape. Originally floating around as a tightly held clone-only cut, this strain boasts an insanely complex, four-way landrace lineage of Colombian Gold, Thai, Swiss, and Nepali Indica. It was the folks over at NorStar Genetics who finally stabilized this vital medicine and released it in seed form. Their version brought a reliable, high-CBD cultivar to the masses, allowing home growers to finally cultivate their own dependable relief without needing underground connections.
Running Harlequin in the tent is a thoroughly enjoyable experience, though she definitely shows her sativa roots. She grows with serious vigor and medium internodal spacing, usually finishing up around the 65-day mark. You're going to want to utilize some training techniques like SCROG or heavy lollipopping, because she responds incredibly well to being spread out and will reward you with massive, chunky colas. Just keep an eye on your humidity late in flower; those dense buds can get a little susceptible to powdery mildew or mold if your exhaust fan isn't pulling its weight. A lot of the old grow diaries on ICMag swear by keeping the airflow aggressive in the final weeks.
The magic of Harlequin is all in the effects. Generally hitting that classic 5:2 CBD to THC ratio, it provides a profoundly clear-headed and functional high. You aren't going to get blasted to the moon or stuck on the couch. Instead, it just washes away anxiety, inflammation, and pain while leaving you completely sharp and focused. The aroma is a sweet, earthy blend of mango and musky wood. For anyone who loves the ritual of smoking but needs to remain entirely productive throughout the day, NorStar's Harlequin remains the gold standard.
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Similar strains
| Breeder | NorStar Genetics |
|---|---|
| Type | mostly sativa |
| Flowering time | ±65 days |
| Environment | Outdoors |
| Lineage | Harlequin |
| Descendants | Ripley, Harlequin, Chief HAHA, Sappfires F2 Harlo, Rare Dankness Seeds - Harlox, MadCat's Backyard Stash - Kernel HAS.OG #1, Medicated OG, Merlin’s Tonic, Hurkle, Harli-Tsu, Die Hard, Midwife, Black Kandy Kush, Harlequin Bx, Pennywise, Freedom Baby, Bananaquin, Holy Bubba, Revolution, Quin-N-Tonic, Harlo, Sensi #1318 CBD, Harlequin CBD, Harlequin, Good Medicine, Harlequin Bx4, MadCat's Backyard Stash - Purple HAS.OG #2, Super Nova OG, The Mission, C.B.Diesel, Harlequin CBD, CannaBoom CBD+, Harlequin x Super Sour Diesel, Dr. Quinn, Blond HAS.OG #3, Mudhoney, Cough Drops, Hurkle, Super Harlequin, Project 13, HarleSin, Harli-Tsu, MediKit |
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🧬 Explore the family: Harlequin · Ripley · Harlequin · Chief HAHA · Sappfires F2 Harlo · Rare Dankness Seeds - Harlox · MadCat's Backyard Stash - Kernel HAS.OG #1 · Medicated OG · Merlin’s Tonic
Ancestry Pedigree
Clone Only Strains
Unknown or Legendary
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Growing Harlequin: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Harlequin will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Harlequin FAQ
How long does Harlequin take to flower?
Harlequin typically flowers in around 65 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Harlequin an indica or a sativa?
Harlequin is listed as mostly sativa.
What are the parents of Harlequin?
Harlequin was bred from Harlequin by NorStar Genetics.
What environment does Harlequin like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
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