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Home›Strains›Hybrid›Critical
Critical strain, representative photoiRepresentative image via Leafly: a stock photo that resembles this strain
Hybrid

Critical

Critical is an indica-leaning hybrid of Afghani and Skunk #1, known for an earthy, woody smell and a relaxed, sleepy feel.

Typical THC
18–19%
Typical CBD
<1%
Top terpene
Pinene
Read the Critical guide

Critical terpenes

Most often reported first

  1. Pinenepine, fresh
  2. Myrceneearthy, musky
  3. Terpinoleneherbal, sweet

How people describe it

RelaxedSleepyHappyUplifted

Smell and taste

EarthyWoodySweetNutty

Family tree

Afghani×Skunk #1crossCritical

Critical strain guide

2 min read · Updated October 14, 2026 · WeedDB editors

Critical is an indica-leaning hybrid of Afghani and Skunk #1, best known through Royal Queen Seeds. It's a sturdy, old-school strain with an earthy, woody smell and a calm, relaxed feel, and it's a close relative of Critical Mass.

Where does Critical come from?What does Critical smell and taste like?Critical effects: what people reportHow strong is Critical?Buying Critical in CanadaCritical vs Critical MassStrains like Critical

Where does Critical come from?

Critical is a cross of Afghani and Skunk #1. The version most people know comes from Royal Queen Seeds, though several seed companies sell a strain under the same name, so not every Critical is the same plant.

That Afghani and Skunk #1 pairing is the same one behind Critical Mass, and the two names are often mixed up. Sources usually describe Critical as roughly 60% indica, and it's popular with growers for its quick flowering and heavy yields.

What does Critical smell and taste like?

Critical smells earthy and sweet, with woody, nutty notes and a darker, tarry edge some people notice. A few describe a fruity, lemon and apple aftertaste on the exhale.

Pinene tends to lead its published terpene results, followed by myrcene and terpinolene. Pinene brings the woody, foresty side and myrcene the earthier, softer base.

Critical effects: what people report

People most often describe Critical as relaxing and sleepy, a settled body feel that suits slower evenings. Others mention a happier, more talkative lift at first, so reports vary with the batch and the amount.

These are experiences people report, not promises. Dry mouth, dry eyes and dizziness are the most common complaints.

How strong is Critical?

Critical sits in the middle for potency. Listings commonly put it around 18% to 19% THC, with very little CBD, which is moderate next to many newer strains.

Even so, start small and give it time before having more. The numbers on your label matter more than the name, and our indica vs sativa guide explains why type labels only tell part of the story.

Buying Critical in Canada

Because Critical, Critical Mass and Critical Kush are all sold under similar names, read the label closely to see which one you have.

Check the THC and CBD numbers and the packaging date, since fresher flower keeps more of its earthy, sweet smell.

Critical vs Critical Mass

Critical Mass comes from the same Afghani and Skunk #1 pairing, and many people treat Critical as a newer seed-company take on it. In practice they're very close: both smell earthy and sweet, both lean relaxing, and both are grown for their big yields. Critical Mass is the older, better-known name, while Critical is the version you'll see most often from Royal Queen Seeds. If you can find either, the label's numbers will tell you more than the name.

Strains like Critical

If you like Critical, these share its Afghani and Skunk roots:

  • Critical Mass: the same Afghani and Skunk #1 pairing, with a similar earthy smell.
  • Critical Kush: a heavier, kushier relative from the Critical family.
  • Skunk #1: one of its parents, sweet and skunky with a balanced feel.
  • Big Bud: another heavy-yielding Skunk descendant with a calm reputation.

Strains similar to Critical

Critical Mass strainCritical MassTHC 18–22%Critical Kush strainCritical KushTHC 14–25%Skunk #1 strainSkunk #1THC 15–19%Big Bud strainBig BudTHC 14–26%

More hybrid strains

Cro Magnon Man strainCro Magnon ManTHC 22–31%Crumpets strainCrumpetsTHC 25–35%Crunch Berries strainCrunch BerriesTHC 15–29%Cuban Linx strainCuban LinxTHC 22–30%

Guides to read next

How to decarb weed (and why THCA needs heat)Decarbing (decarboxylation) is gently heating cannabis so the THCA it contains turns into THC. Lab studies show the change starts around 90 °C and speeds up sharply as temperature rises, but too much heat or time then starts to destroy THC, so it's a balance. Raw weed isn't intoxicating because it's mostly THCA.Minor cannabinoids: CBG, CBN, CBC, THCV and THCA explainedMinor cannabinoids are the cannabinoids in cannabis other than THC and CBD, called minor because of how little a typical plant makes, not how strong they are. In Canada they all fall under the Cannabis Act, Health Canada names CBN and THCV as intoxicating, and labels only have to show THC and CBD.Runtz strains: origin, lineage, and every Runtz variantRuntz is a candy-sweet hybrid reported to be a cross of Zkittlez and Gelato. It became one of the most copied strain names of the late 2010s, so the Runtz family now includes dozens of crosses and flavour-named variants.

Critical questions

Is Critical indica or sativa?

Critical is a hybrid. It is a cross of Afghani and Skunk #1.

How strong is Critical?

Published lab results usually range from 18% to 19% THC, and the label on any legal Canadian product shows its exact batch.

What does Critical smell like?

Earthy, woody, sweet and nutty, led by pinene (pine, fresh).