Tibbet Knob
Modern
LShybrid-sativa
Loud Sour
Top flavors
herbalearthyfloral
CalmingEnergizing
Loud Sour has balanced effects.
Loud Sour is a modern hybrid-sativa cultivar derived from a 7/8 Sour lineage. Developed for growers seeking a balance of yield and vigor, it maintains a moderate difficulty level and completes its flowering cycle in 66 days. The strain is versatile, performing effectively in both indoor and outdoor cultivation environments, where it is capable of producing a high total yield for the grower.
The chemical complexity of Loud Sour is defined by a diverse terpene profile led by p-cymene, followed by myrcene, nerolidol, linalool, and caryophyllene. This dominant list continues with beta-pinene, pinene, camphene, terpinolene, humulene, ocimene, and alpha-terpinene. This wide array of compounds creates a distinct sensory profile, characterizing the strain through a nuanced interaction of these identified constituents.
As a THC-dominant cultivar, Loud Sour is recognized for promoting creative, uplifted, and euphoric effects. These traits make it a functional choice for social situations, focus-driven tasks, or stimulating creative projects. The genetic influence of the strain is evidenced by its notable offspring, which include Bleeting Goat, Curious Jorge, Nanas Fix, Odies Slumber, Pinkys Advice, Sappy Sour 2.0, Skwurl Killer, Sour Krush, and Sour Mcloud.
Terpene Profile
Synergies (+) and conflicts (−) are relative to each other within this profile.
p-cymene ~60%myrcene ~28%nerolidol ~12%
| Terpene | Share | Character | Likely role |
|---|---|---|---|
| p-cymene | ~60% | herbal | focus · relaxing |
| myrcene | ~28% | earthy | relaxing · solo |
| nerolidol | ~12% | floral | sleep · relaxing |
Research notes below describe isolated terpene mechanisms and early findings. They do not guarantee effects from this strain and are not medical advice.
Herbal, woody-citrus aroma. Common in cumin and thyme. Mild analgesic and anti-inflammatory activity.
Russo 2011: naloxone-sensitive analgesia, potentiates barbiturate sleep; dominant sedating terpenoid; blocks hepatic carcinogenesis by aflatoxin.
Russo 2011: sedative properties; enhances transdermal pharmaceutical penetration; antimalarial; PMC11060501: GABAergic-mediated antinociception.
Effects
Reported effects — derived from terpene chemistry and cannabinoid profile.
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creative
morningAssociated with terpinolene/limonene profiles; dopaminergic and serotonergic modulation via limonene 5-HT1A supports divergent thinking.
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uplifted
morningLimonene anxiolytic/antidepressant via serotonin elevation in prefrontal cortex (Russo 2011); mood improvement without full euphoria; key for balanced-1-1 profiles.
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happy
anytimeGenetic Profile
Sativa-dominant
■ Indica 30%■ Sativa 70%
Primarily sativa with indica grounding. Uplifting with body relaxation.
THC-Dominant
High THC, trace CBD. Psychoactive. Full CB1 agonism — euphoria, appetite, analgesia.
Genealogy
Parentage, ancestry, and genetic relatives of Loud Sour.
Ancestry
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Siblings
Share parent 7 8 sour
Offspring — 9 strains bred from Loud Sour
Composite Traits
Where to buy Loud Sour
No verified dispensaries on file — find it on Leafly.
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What would Loud Sour × ? 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 Loud Sour →Similar strains
Same primary terpene with overlapping effects.
Frequently Asked Questions
Is Loud Sour indica or sativa?
Loud Sour is modeled here as a sativa-dominant (primarily sativa with indica grounding).
What terpene is dominant in Loud Sour?
P-cymene is shown as the dominant terpene at approximately ~60%. Myrcene follows as the secondary terpene.
Is Loud Sour good for daytime use?
Loud Sour 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.