Critical
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Critical

Indica-dominant
Indica 60 % Breeder dataSativa 40 %

Critical is an indica-dominant cross of Afghani and Skunk traced back to Critical Mass by Mr. Nice, with several seed companies marketing their own lines under the name.

Research as of 09/27/2026

Six days after the switch to 12/12, the first signs of flowering appeared on the seed-grown plants in a grow report by Royal Queen Seeds; harvest followed 79 days after germination. The 4 seed-grown plants yielded between 37 and 49 g dried, while 2 rooted cuttings produced 63 and 75 g. Critical is regarded as an indica-dominant cross of Afghani and Skunk, described as fast and productive, with flowers whose density also favors mold. Numerous seed companies market their own lines under the name, several of which are traced back in descriptions to Critical Mass by Mr. Nice.

Cultivation:

For its own feminized version, Royal Queen Seeds states 50 to 60 days of flowering, 550 to 600 g/m² indoors and 600 to 650 g per plant outdoors, where harvest takes place between the 15th and the end of September. Height figures diverge: the current breeder page cites 80 to 140 cm indoors and 180 to 220 cm outdoors, while a description of the same line reproduced elsewhere gives 45 to 50 cm and 7 weeks of flowering, along with just over 100 g per plant outdoors.

In the grow report mentioned, 2 of the 4 seed-grown plants stretched noticeably. The shorter ones formed more compact flowers with tight internode spacing, while the stretched plants produced hard buds with more space between them, all heavily coated in resin. The report points to air movement and controlled humidity because of the dense flower structure. Independent grow reports and strain descriptions likewise warn of mold in late flowering; the latter also recommend support stakes so that heavy side branches do not break. The plants in the report were not trained, though one grower describes a good response to topping. The breeder and other descriptions rate cultivation as easy.

Genetics and Origin:

Royal Queen Seeds names Afghani × Skunk as the parents, other descriptions specify Skunk #1. Who bred the strain is not presented consistently: one strain description credits Royal Queen Seeds as the breeder, another credits Mr. Nice Seedbank. Their Critical Mass, likewise Afghani × Skunk #1 and described as a reworked Big Bud, emerged according to Spanish accounts before 2000 under Shantibaba and Nevil Schoenmakers. Around 2000, a single plant grown from Critical Mass seed near Bilbao was kept as a cutting; this clone spread through Spain as Critical Bilbo. Dinafem followed in 2005 with Critical+, according to the breeder from Big Bud × Skunk. An overview of the strain's history points out that the name alone does not prove descent from Critical Mass.

Versions from Different Breeders:

A strain overview lists 14 vendors with a strain called Critical, with verifiable individual figures available for 3. Royal Queen Seeds states 60% indica and 40% sativa, while elsewhere 70% indica is given for the same line. Zamnesia describes its feminized Critical as Afghani × Skunk with 7 weeks of flowering and 600 g/m² indoors. Advanced Seeds sells a different genetic makeup under the name, Critical Mass crossed with a Brazilian-South Indian line, with 7 to 8 weeks of flowering, 350 to 450 g/m², 60 to 90 cm height indoors and 16% THC.

As an autoflowering derivative from Critical and Ruderalis, Royal Queen Seeds offers Royal Critical Auto, which according to the breeder takes 70 to 80 days from germination to harvest with up to 14% THC.

THC Content:

Royal Queen Seeds states up to 18% THC with low CBD for its own version; the description that names Mr. Nice as the breeder likewise reaches 18%. A strain overview based on tested commercial products lists 19% THC and 1% CBG.

Aroma and Flavor:

The breeder describes the scent as earthy, fruity and piney with a skunk note and candy-like sweetness. In the grow report, the untouched flowers barely smelled; broken open, they showed earth, a note of burnt almond, spice and a slight hint of fuel. The smoke tasted of hashish, more strongly of skunk in the denser plants. Consumer reports describe tar first on the inhale, then wood, with lemon and apple in the aftertaste; grow reports mention lemon, pine with a fruity-sour edge, and once a mix of chocolate, blueberry and coffee. A strain overview based on tested products names pinene as the leading terpene, followed by myrcene and terpinolene.

Effects:

Royal Queen Seeds classifies the effect as heavy, physically relaxing and stoned. User reports mention relaxation and drowsiness alongside an uplifted mood, talkativeness and creativity; one grower describes an initially sociable impression that later turns into a physical effect, another a balance between head and body. In the breeder's grow report, the effect set in with a delay, was clearly physical, accompanied by euphoria and not particularly long-lasting, without tying users to the couch. Zamnesia, by contrast, describes its own version with couch-lock. Whether the effect sets in gradually or abruptly is described differently across consumer reports. Reported side effects include dry mouth, dry eyes and dizziness, with one report mentioning impaired concentration.

Community Experiences:

For the Royal Queen Seeds version, grow reports cite flowering times of 60 to 65 days, 61 days, and in one case 84 days; one grower considers 9 to 10 weeks appropriate for individual phenotypes. Individual plants yielded around 60 and around 72 g, with one plant reaching about 60 cm. In one grow, the compact flowers turned purple toward the end, another describes a favorable calyx-to-leaf ratio. The strain is consistently regarded as robust and productive. Diverging from this, one grower reports 3 hermaphrodite plants out of 5, another reports powdery mildew that the plant survived. Growers estimate nutrient demand as ranging from low during flowering to medium.

This article is for informational purposes only and is not a substitute for medical or therapeutic advice. If you have any health-related questions, please consult a doctor or another qualified professional.

Effects & aroma

From reviews and experience reports — subjective, not a medical statement

Reported as positive
sleepy
relaxed
euphoric
Reported side effects
dizzy
Headache
paranoid
Aroma & flavor
Pine Spicy Wood

No reviews yet — information from the strain description. Rate the strain to see shares.

Cannabinoids & terpenes

Levels vary by batch, phenotype and cultivation — values are indicative

THC
up to 18 % Breeder data
19 %additional figure
0 %35 %
CBG
1 %
0 %10 %
Terpene profile
  • #1
    PinenePine
  • #2
    MyrceneHerbs
  • #3
    TerpinoleneFruity

Cultivation

Indicative values from breeder data and grow reports — varies by phenotype and setup

Flowering & harvest
Breeder data
Flowering time
50–60 days
Outdoor harvest
the 15th to late September · Northern hemisphere
Yield & height
Breeder data
Yield indoor
550–600 g/m²
Yield outdoor
600–650 g/plant
Height indoor
80–140 cm
Height outdoor
180–220 cm

In the breeder's grow report, 2 of 4 seed-grown plants stretched noticeably; no factor given.

Difficulty, environment & climate
Breeder data
Difficulty
Easy
Indoor
suitable
Outdoor
suitable
Climate
Warm

The breeder lists 'short summers' as the climate category and names warmer regions such as Spain, Italy and California for outdoor cultivation; one strain description names yields at northern latitudes as the breeding goal. Contradictory, therefore not included in the text.

Resistances
Breeder data
Mold
Low
Morphology
Bud structure
Dense
Trichome coverage
High
Calyx-to-leaf ratio
High
Coloration
purple flowers toward the end of flowering in one grow report; cause not stated

In the breeder's grow report, shorter plants showed denser flowers with tight internode spacing, while stretched plants showed hard, more widely spaced buds; flowers heavily resinous. Favorable calyx-to-leaf ratio in one grow report.

Training
Topping
Tolerated
Support needed
Yes

No training in the breeder's grow report; one grower describes a good response to topping; support stakes recommended for heavy side branches.

Genetics & origin

Origin
Breeder data
Cross
Afghani × Skunk #1
Type
Indica-dominant
Available as seeds
Feminized, Autoflowering
Flowering types (all versions)
Photoperiod, Autoflowering
Parents (2)
Skunk #1
Skunk #1Hybrid · THC 15–19 %
AfghaniIndica · THC 18–20 %
Descendants (1)
Critical Orange PunchHybrid · THC max. 21 %

Versions by different breeders

Several breeders sell their own versions under this name. Each figure comes from the respective breeder.

Advanced SeedsCritical
Different genetics
PhotoperiodFeminized
Flowering
7–8 weeks
Yield indoor
350–450 g/m²
Height indoor
60–90 cm
Height outdoor
200–300 cm
THC
16 %

Critical Mass × Brazilian-South Indian line (according to a strain overview, White Widow); feminized only; outdoor height 2–3 m.

Royal Queen SeedsCritical
Relation unclear
PhotoperiodFeminized
Flowering
50–60 days
Yield indoor
550–600 g/m²
Yield outdoor
600–650 g/plant
Height indoor
80–140 cm
Height outdoor
180–220 cm
THC
up to 18 %

Best-documented version. One strain description names Royal Queen Seeds as the breeder, another traces the line via Critical Mass (Mr. Nice Seedbank) back to Afghani × Skunk #1. Breeder page: 60% indica / 40% sativa; a description of the same line reproduced in a strain overview: 70% indica, 7 weeks of flowering, 45–50 cm height, over 100 g per plant outdoors. Autoflowering derivative Royal Critical Auto (Critical × Ruderalis): according to the breeder, 70–80 days from germination to harvest, up to 14% THC.

ZamnesiaCritical
Relation unclear
PhotoperiodFeminized
Flowering
7 weeks
Yield indoor
600 g/m²

Afghani × Skunk #1, according to a strain overview via Critical Mass; feminized only.

More breeders (11): 420 Genetics, Amaranta Seeds, Bulk Seed Bank, CBD Seeds, Ganja Farmer, Kera Seeds, Nirvana Seeds, Seedmakers Seeds, Sensation Seeds, Victory Seeds, Zativo

Community

16 grow and experience reports reviewed Community reports
Consensus

Grow reports describe the Royal Queen Seeds version as robust, productive and easy to cultivate, with dense, resin-rich flowers; several reports and descriptions warn of mold in late flowering. Consumer reports mostly mention relaxation and physical effects, alongside an uplifted mood.

Divergent reports

Flowering time ranges from 60 to 65 days up to 84 days; nutrient demand is estimated from low to medium; one report notes 3 hermaphrodite plants out of 5; one report describes powdery mildew that was overcome. Onset of the effect is described in some cases as gradual and in others as abrupt; the breeder's grow report shows no couch-lock, while Zamnesia describes its own version as strongly couch-lock-inducing.

Reported values from individual grows
Days to first flowering signs after switch to 12/12 (breeder's grow report)
6 days
Germination to harvest, seed-grown plants (breeder's grow report)
79 days
Dry yield per seed-grown plant, 4 plants (breeder's grow report)
37–49 g
Dry yield per cutting, 2 plants (breeder's grow report)
63–75 g
Flowering duration in one grow report
60–65 days
Flowering duration in one grow report
61 days
Flowering duration in one grow report
84 days
Recommended longer flowering for individual phenotypes according to one grower
9–10 weeks
Dry yield of one plant in a grow report
60 g
Dry yield of one plant in a grow report
72 g
Plant height in one grow report
60 cm
Hermaphrodite plants in one grow report (3 of 5)
3 plants

Similar strains

Related genetics, same dominant terpene, similar effects and aroma — excluding direct parents and descendants

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