Critical Mass by Linda Seeds

Type mostly indicaFlower ±49 daysCross Critical Mass

5 other breeders' versions of Critical Mass — compare flowering times side by side →

There is no denying that Mr. Nice's original Critical Mass changed the game for commercial cash-croppers. It was the ultimate refinement of the Big Bud line—crossing a heavy Afghani with Skunk #1 to create branches that literally snap under their own weight. Enter Linda Seeds. They are a well-known budget seed bank out of Spain, basically the dollar menu of the cannabis seed world. They offer their own feminized version of Critical Mass for literal pennies on the dollar compared to premium breeders. So, what’s the catch?

Well, when you run Linda's gear, you aren't getting a finely tuned, stabilized ibl. You're getting a mass-produced Spanish reproduction. Guys on the German Canbau subreddits run these constantly because they are cheap, and the results are surprisingly decent if you keep your expectations in check. You'll find growers pulling massive, rock-hard colas in just 8 weeks of flower, which is exactly what Critical Mass is supposed to do. But you'll also see wildly different phenotypes in the same tent. One might be a short, squat Afghan leaner that finishes fast and smells like earthy hash, while the next seed pops into a stretchy, skunky mess that needs an extra two weeks.

But man, for the price point, it’s hard to hate on it. If you throw a net over these girls and dial in your environment, Linda’s Critical Mass will fill jars faster than almost anything else in the garden. You absolutely must keep your humidity in check during late flower, though. Those buds get so fat and dense that botrytis (bud rot) will ruin your entire crop overnight if your exhaust fan isn't keeping up. It might not have the elite bragging rights of a boutique pack, but it yields like an absolute monster and puts you to sleep in a hurry.

🏆 Legendary Foundation Strain

This is one of the most influential cannabis varieties in history. Critical Mass has been used to breed 152 documented descendant strains in our database, making it a cornerstone of modern genetics.

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Breeder	Linda Seeds
Type	mostly indica
Flowering time	±49 days
Environment	Outdoors
Lineage	Critical Mass
Descendants	MassKush, Maluco Beleza, Monster Mass, Mystic Seeds - Critical Budha, Critical Plus, Auto Super Skunk, Chitral Mass, BCN Critical XXL Fast, Mr. Kritical Mass, Original Critical, Barneys Farm - Critical Rapido, 20 Guage, Kritical Max, The Moon Seeds - Critical Magic, Critical Kush Auto, Critical 2.0 Auto, Panoramix Genetics - Auto Critical X, Masa Critica, CBD Botanic - CBD D Diesel, Sweet Critical, CBD Critical Mass, Red Critical Auto, Auto Sweet Critical, Ketama Seeds - Critical Ketama, Critical, Green Fantasy Seeds - Critical Widow, Foxy Lady, +Speed Auto, Clinical, PEV Seeds Bank - Critical Plus, Critical Express, Mamba Negra, CBD Critical Mass, DutchFem - Critical XL, Mr. Amnesia Mass, Zambeza - Critical XXL, Critical Kush, Original Sensible Seeds - Critical Diesel Auto, Exclusive Seeds Bank - Cheese x Critical, Critical, Critical Glue #4 Auto, Speed Seeds - Northern Light x Critical, Auto Kritical Red, Critical Dynamite, Sour Puss, Zamnesia - Critical Automatic, Mr. Weed Mass, Barbie Q, White Widow x Critical, Critical Mass, 420 Genetics - Critical, Critical VIP, Makka Seeds - Critical Ganja, Diesel XXL Auto, Critical Lights, Auto Critical, Mr. Jack Mass, Hope of Israel, Auto Cheese, Critical, Pink Mass, C+ Auto, Critical Mass, Critical Mass, Original Clon, Kritikal-K, Critical AK Auto, Critical Mass 33, White Critical, Critical, BCN Critical XXL, Auto Mass, Critical Daddy Purple, El Jardin de Maria Seeds - Green Select, Critikal 99, SweetCritical+, Sweet Skunk Auto, Critical Mass, Critical Poison, Kush Mass, Original Auto Critical, Fruity M. Mas, Aficionado Seed Bank - Critical Mass, Critical Mass, Silverback, Critical Haze, Big White, Reggae Seeds - Dub, Blim Burn Seeds - Wombat, CBD Critical Mass, Blim Burn Seeds - Narkosis, Critical Mass Automatic, OG Critical, Giant Skittlez, Widow+, Critical #47, Critical Gorilla, Auto Skunk, Medicritical, Supercritical, Monster Skunk Auto, Sweet Madness, African Honey, Money Bush, CBD Critical Mass, Critical Purple Kush, Critical Mars, Hempire Seeds co. - Critical Mass, Critical, Exotic Seeds - Quick Mass, Critical Mass CBD, Kripple Shock, Critical Haze, Auto Clinical, HighRise Seeds - Critically Early Guerrilla, Skunk 47, Cayman Kush, Critical Bilbo, Garden of Green - Critical Automatic, Paisa Grow Seeds - Fast Mass Haze, Exclusive Seeds Bank - Critical Exclusive, Shotgun, BCN Critical XXL, Critical Kush, BCN Critical XXL Fast, Seedsman - Big Nugs FAST, Critical Ryder, Critical Skunk, Toro Blanco, Critical Zone, White Critical, Pink Floyd, Critical Purple Kush, Super Kritikal, Gigantuan, Advanced Seeds - Auto Skunk Mass, Mr. Cheese Mass, Critical XXL Auto, Critical Kush, The Plant - Critical Mass, Sugar Black Rose Auto, Mr. Eiden Mass, CBD Critical Mass, Auto Critical Mass, B.I.G. Seeds - Critical Raskera, Critical Herer, Dutch Quality Seeds - Auto Giant, Afghan Mass, Sweet Seeds - +Speed, Auto Bud Cannon, White Critical Express, Critical Purple Kush

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🧬 Explore the family: Critical Mass · MassKush · Maluco Beleza · Monster Mass · Mystic Seeds - Critical Budha · Critical Plus · Auto Super Skunk · Chitral Mass · BCN Critical XXL Fast

Ancestry Pedigree

Critical Mass
Linda Seeds

Critical Mass
Breeder: Linda Seeds
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Critical Mass
Mr Nice Seedbank

Afghanistan Indica
Original Strains

Skunk Nr1
The Seed Bank

Skunk Nr1
Cultivators Choice

Afghanistan Indica
Original Strains

Mexico Sativa
Original Strains

Colombia Sativa
Original Strains

Growing Critical Mass: what to expect

As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Critical Mass 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.

Critical Mass FAQ

How long does Critical Mass take to flower?

Critical Mass typically flowers in around 49 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Critical Mass an indica or a sativa?

Critical Mass is listed as mostly indica.

What are the parents of Critical Mass?

Critical Mass was bred from Critical Mass by Linda Seeds.

What environment does Critical Mass 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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