HDauto
AutoflowerModernTHC-Dominantevening

High Density

Top flavors

earthyspicycitrus
CalmingEnergizing

High Density effects are mostly calming.

High Density is a modern, autoflowering variety developed through the crossing of Ruderalis and White Dwarf. The lineage of this strain is constrained to these two identifiable parents, though the broader historical circumstances surrounding its initial development remain undocumented. As a modern autoflower, it has been engineered for efficiency, fitting into cultivation cycles that prioritize speed over high-volume output.

The chemical composition of High Density is defined by a primary presence of myrcene, followed by caryophyllene and limonene, with pinene, terpinolene, linalool, beta-pinene, humulene, nerolidol, ocimene, bisabolol, guaiol, camphene, caryophyllene-oxide, and p-cymene rounding out the profile. This complex array of terpenes informs its sensory presentation, though the specific intensity of these aromatic compounds tends to vary by harvest. Cultivators will find this strain easy to grow in both indoor and outdoor environments, though it is characterized by a low yield and a brief 56-day flowering period.

Users seeking relief report that High Density provides effects that are relaxed, happy, and uplifted. These characteristics make it a notable option for managing stress and pain, as well as addressing sleep concerns. As a THC-dominant variety, it is engineered for consistent therapeutic application rather than complex genetic branching, as there is currently no offspring recorded for this strain.

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

Parentage, ancestry, and genetic relatives of High Density.

Ancestry

High DensityFull tree →
View full lineage tree →

Composite Traits

Use caution if

daytime-productivitymorning-useevening-wind-down

Where to buy High Density

No verified dispensaries on file — find it on Leafly.

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What would High Density × ? 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 High Density

Similar strains

Same primary terpene with overlapping effects.

Frequently Asked Questions

Is High Density indica or sativa?

High Density is modeled here as a autoflower (photoperiod-independent).

What terpene is dominant in High Density?

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

Is High Density good for daytime use?

High Density 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.