Siam Sour by Anthos Seeds
Unknown Thai Landrace × Unknown Sour Diesel-type Hybrid
Siam Sour is a modern hybrid developed by Anthos Seeds, blending Southeast Asian genetics with a diesel-citrus profile. This cultivar aims to provide energetic, cerebral clarity balanced with assertive acidity and fuel-like depth.
Appearance
Siam Sour plants typically grow to a medium-tall stature with significant space between nodes, particularly in phenotypes leaning towards Thai genetics. During the late vegetative stage, fan leaves are moderately narrow and light green, suggesting sativa influence. The plant structure often forms a conical, Christmas-tree shape under single-top training, while other training methods can encourage a flatter canopy. Expect approximately 1.6–2.0x stretch after switching to flowering, with Thai-leaning plants showing more significant growth.
As flowers develop, calyxes stack in staggered whorls. Some phenotypes may show slight foxtailing late in bloom, especially under high heat or very high light intensity. The calyx-to-leaf ratio is generally favorable, simplifying the trimming process. Trichome density becomes strong by the fifth week of flowering, with resin heads maturing uniformly from clear to cloudy. The resin heads are typically medium-sized.
Aroma & Flavor
The name “Sour” in Siam Sour suggests an aromatic profile characterized by diesel and citrus notes. This is often accompanied by undertones of earthiness, floral hints, and herbal qualities. The flavor is expected to mirror the aroma, presenting a blend of citrus, lemon, and potentially tropical notes like mango, with a distinct diesel-like pungency.
Effects
Siam Sour is described as providing energetic and cerebral effects. This suggests a stimulating experience that can enhance focus and mental clarity. The hybrid nature aims to balance invigorating qualities with a smooth, manageable experience suitable for daytime use.
Terpenes & Cannabinoids
While specific cannabinoid percentages are not provided, Siam Sour is generally characterized by a THC content ranging from 15-25% and less than 1% CBD. The terpene profile is inferred from its lineage and flavor notes, likely including Myrcene, Limonene, Caryophyllene, Terpinolene, and Ocimene. These terpenes contribute to the strain's distinct aroma and effects, influencing its citrus, diesel, and earthy characteristics.
Origins & Lineage
Siam Sour is a hybrid strain developed by Anthos Seeds, noted for incorporating global landrace genetics into contemporary hybrids. The name indicates a lineage that combines Thai landrace heritage with a “sour” component, likely referencing American diesel-type strains. While the precise parentage is not disclosed, it is understood to be a fusion of Thai genetics, known for energetic and clear effects, with a sour-fuel profile associated with strains like Sour Diesel. This combination aims for a balance of invigorating headspace and complex aroma.
Growing
Growing Siam Sour may present moderate challenges, with phenotypes varying in structure. Thai-leaning plants might exhibit taller stature and longer internodes, while those influenced by sour-fuel genetics could be more compact. The flowering period is typical for a hybrid, and yield can be influenced by training techniques and environmental conditions. Growers should manage light and environmental factors to optimize expression of desired traits, with potential for high-aroma plants.