Jaggen by Clone Only Strains

Jaggen strain photo
Type mostly sativaFlower ±73 daysCross Jack Flash

Man if you were kicking around the German forum scene back in the day you already know the legend of Jaggen. Dr. Knospe over at the Hanfburg basically stumbled onto the holy grail when he popped some Jack Flash seeds and found this freak of nature phenotype. For the longest time this was strictly a clone-only cut getting passed around in secret. You couldn't just buy this stuff. You had to know somebody who knew somebody. It’s a heavy Sativa-dominant monster that grows with this ridiculous vitality. Like seriously it throws out these massive broad branches and long side shoots that just beg to be trellised.

Honestly the smell is what makes it so unforgettable. It’s this piercing, eye-watering fresh lemon mixed with a harsh industrial diesel funk. When it hits flower the resin production goes completely out of control. It pumps out these dense, compact nugs that don't suffer from that airy fluffiness you get with a lot of Sativas. Smoke a joint of Jaggen and it's an immediate, soaring cerebral high that makes you want to deep clean your entire house or talk someone's ear off for three hours straight. But don't mess up and overdo it or you'll get the spins real fast.

Look you can find S1 feminized versions now because some breeders finally reversed it to preserve the genetics. It’s basically the backbone of European elite cuts. Grüne Hessin? Jägg Kush? Yeah they all owe their existence to this exact cut. It's a piece of underground cannabis history that proves sometimes the absolute best genetics come from a single lucky seed pop by a grower who knows exactly what to look for.

🌿 Start a Jaggen journal — free →

Similar strains

Bob SagetClone Only Strains · ±77 daysThe CoughClone Only Strains · ±84 daysPNW DogshitClone Only Strains · ±75 daysPsychosisClone Only Strains · ±63 daysFortune CookiesClone Only Strains · ±60 daysEarth OGClone Only StrainsHang 10The Bank Genetics · ±73 daysHeaven's Gate CBDTropical Seeds Co. · ±73 daysJack AttackVenus Genetics · ±73 daysJack Knifed SemiRare Dankness · ±73 daysKMBCBF2Swami · ±73 daysMaui MistBC Seed Co. · ±73 daysAll Clone Only Strains →
BreederClone Only Strains
Typemostly sativa
Flowering time±73 days
EnvironmentIndoors
LineageJack Flash
DescendantsBushmans x Jaggen x Haze Special, Delicious Seeds - Jägg Kush, Grüne Hessin, Hybrids from hell - Jaggen x (C99 x Hashplant 2), Silver Princess Mc Jaggen

🌱 Get Jaggen seeds →
Affiliate link — supports Cultivar at no cost to you.

🧬 Explore the family: Jack Flash · Bushmans x Jaggen x Haze Special · Delicious Seeds - Jägg Kush · Grüne Hessin · Hybrids from hell - Jaggen x (C99 x Hashplant 2) · Silver Princess Mc Jaggen

Ancestry Pedigree

Jack Flash
Sensi Seeds
Super Skunk
Sensi Seeds
Skunk Nr1
Sensi Seeds
Afghanistan Indica
Original Strains
Jack Herer
Sensi Seeds
Northern Lights Nr5
The Seed Bank
Purest Indica
Clone Only Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
Hawaii Sativa
Original Strains
Skunk Nr1
Sensi Seeds
Skunk Nr1
The Seed Bank
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains

Growing Jaggen: 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 Jack Flash 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.

Jaggen FAQ

How long does Jaggen take to flower?

Jaggen typically flowers in around 73 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Jaggen an indica or a sativa?

Jaggen is listed as mostly sativa.

What are the parents of Jaggen?

Jaggen was bred from Jack Flash by Clone Only Strains.

What environment does Jaggen 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.

📷 Growing Jaggen and something looks off? Free AI photo diagnosis →

Facts compiled from public breeder listings. Growing Jaggen? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

Suggest an edit for Jaggen

Track your own grow free — the journal grades your environment against these bands →

Get the one-page grow reference card

VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.

Or just open the card now — no email needed →

Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.