Jock Horror by Nirvana
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Let's be real—back in the day, a pack of true Jack Herer seeds would cost you an arm and a leg. Enter Jock Horror from Nirvana Seeds. This was Nirvana's working-man answer to the Jack Herer legend, combining the exact same genetic building blocks: Mexican Haze, Northern Lights, and Skunk #1. But Nirvana managed to isolate something special in their version. It wasn't just a cheap knockoff; it became a staple in the scene for guys who wanted massive yields of soaring, cerebral haze without taking out a second mortgage.
Growing Jock Horror is a wild ride, and if you don't respect its Haze lineage, it will absolutely take over your grow room. When you flip her to 12/12, expect the stretch of a lifetime—often doubling or even tripling in height. You've got to break out the plant ties, super-crop the branches, and force her to spread out horizontally. She takes her sweet time, usually needing a solid 9 to 11 weeks to finish, but she packs on serious weight in those final two weeks. The colas turn into massive, foxtailing spears covered in sticky, silver resin.
The payoff is one of the most functional, energetic smokes you can get. The jar smell is incredibly complex, hitting you with sweet earth, sharp citrus, and that classic, spicy Haze incense. It's the kind of weed that hits you before you even exhale, instantly clearing out brain fog and sending your heart rate up a couple of ticks. Guys have been keeping Jock Horror mothers alive on Overgrow and Rollitup for literally decades because it’s a bulletproof, high-yielding old-school sativa that never disappoints.
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Similar strains
| Breeder | Nirvana |
|---|---|
| Type | mostly sativa |
| Flowering time | ±70 days |
| Environment | Outdoors |
| Lineage | Northern Light × Skunk Nr1 |
| Descendants | Royal Flush, BlackJack, Auto Jock Horror, Venus Flytrap, Bubble Jock, Jock Horror, Jock Horror Automatic, Royal Flush, Blackjack, Nirvana Special, Jack F1 |
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🧬 Explore the family: Northern Light · Skunk Nr1 · Royal Flush · BlackJack · Auto Jock Horror · Venus Flytrap · Bubble Jock · Jock Horror · Jock Horror Automatic · Royal Flush
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Growing Jock Horror: 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 Northern Light or Skunk Nr1 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.
Jock Horror FAQ
How long does Jock Horror take to flower?
Jock Horror typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jock Horror an indica or a sativa?
Jock Horror is listed as mostly sativa.
What are the parents of Jock Horror?
Jock Horror was bred from Northern Light × Skunk Nr1 by Nirvana.
What environment does Jock Horror 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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