C+2Aauto
AutoflowerModernTHC-Dominantevening

Critical + 2.0 Auto

Top flavors

earthyspicycitrus
CalmingEnergizing

Critical + 2.0 Auto effects are mostly calming.

Critical + 2.0 Auto represents a modern approach to rapid-cycle cultivation, emerging as a refined automated version of the broader Critical lineage. While the specific genetic lineage remains undocumented, it is widely credited to the ongoing evolution of auto-flowering genetics that prioritize efficiency for both indoor and outdoor growing environments. As a project focused on accessibility, the cultivar is categorized as easy to manage throughout its 74-day flowering cycle, though growers should anticipate a low yield compared to standard photoperiod varieties.

The aromatic profile of this variety is defined by a distinct terpene hierarchy, led by myrcene, followed by caryophyllene, and rounded out by limonene. This chemical composition dictates the sensory experience, offering a profile that balances earthy, deep base notes with a sharp, peppery spice and a subtle citrus finish. The interaction between these terpenes creates a complex olfactory display that maintains consistency from the initial harvest to the final consumption.

Users typically report a THC-dominant experience characterized by feelings of being relaxed, happy, and uplifted. These primary effects make the strain a functional choice for those seeking relief from stress, pain, or difficulty with sleep. The genetic legacy of this cultivar is further evidenced by its status as a parent to Quick Critical +, a strain that has built upon the functional, fast-flowering reputation established by its predecessor.

Terpene Profile

Synergies (+) and conflicts (−) are relative to each other within this profile.

myrcene ~60%caryophyllene ~28%limonene ~12%
TerpeneShare
myrcene~60%
caryophyllene~28%
limonene~12%

Research notes below describe isolated terpene mechanisms and early findings. They do not guarantee effects from this strain and are not medical advice.

~60%

earthy

●●●○

Russo 2011: naloxone-sensitive analgesia, potentiates barbiturate sleep; dominant sedating terpenoid; blocks hepatic carcinogenesis by aflatoxin.

~28%

spicy

●●○○

Russo 2011: only terpene that is a selective full CB2 agonist (100 nM); Gertsch et al. 2008: acts as dietary cannabinoid; unique anti-inflammatory and gastric cytoprotective properties.

~12%

citrus

●●○○

Russo 2011: increases serotonin in prefrontal cortex + dopamine in hippocampus via 5-HT1A; Johns Hopkins 2024: significantly reduced anxiety vs THC alone.

Effects

Reported effects — derived from terpene chemistry and cannabinoid profile.

Genetic Profile

Autoflower

Photoperiod-independent. Flowers based on age, not light cycle. Compact and fast.

THC-Dominant

High THC, trace CBD. Psychoactive. Full CB1 agonism — euphoria, appetite, analgesia.

Genealogy

Parent data not yet recorded for Critical + 2.0 Auto.

Critical + 2.0 Auto

Offspring — 1 strains bred from Critical + 2.0 Auto

View full lineage tree →

Composite Traits

Use caution if

daytime-productivitymorning-useevening-wind-down

Where to buy Critical + 2.0 Auto

No verified dispensaries on file — find it on Leafly.

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What would Critical + 2.0 Auto × ? produce?

Predict the terpene profile, effects, and growing traits of a cross. Our gene weaver engine votes on dominant traits from both parents.

Build a cross with Critical + 2.0 Auto

Similar strains

Same primary terpene with overlapping effects.

Frequently Asked Questions

Is Critical + 2.0 Auto indica or sativa?

Critical + 2.0 Auto is modeled here as a autoflower (photoperiod-independent).

What terpene is dominant in Critical + 2.0 Auto?

Myrcene is shown as the dominant terpene at approximately ~60%. Caryophyllene follows as the secondary terpene.

Is Critical + 2.0 Auto good for daytime use?

Critical + 2.0 Auto is versatile and works across different times of day depending on dose and individual response.

How accurate is this data?

See the "Data confidence" card in the sidebar. Terpene profiles and effects are chemistry-informed estimates — individual responses depend on phenotype, source, and personal chemistry.