Ultra Sour CBD
MK Ultra × East Coast Sour Diesel
Ultra Sour (CBD) is a modern iteration of the classic Ultra Sour, bred to offer a more balanced cannabinoid profile with a focus on CBD. It retains the distinctive sour-fuel aroma and citrus notes while providing a milder, more functional experience.
Appearance
This cultivar typically presents as a medium-tall plant with robust colas and branching. Its buds often form elongated, spear-like shapes with prominent calyxes, developing into dense structures under optimal conditions. Expect vibrant orange pistils and heavy trichome coverage giving a frosted appearance.
Buds can range in color from lime to forest green, sometimes showing subtle purple hues on sugar leaves, especially with cooler temperatures. The density of the buds contributes to a good aromatic throw, even from small amounts.
Aroma & Flavor
The aroma is characterized by a strong blend of diesel fuel and sour citrus, often with underlying notes of pine. This profile is complemented by hints of herbal and minty freshness, and a subtle peppery warmth.
Flavors mirror the aroma, presenting a dominant citrus and diesel taste, rounded out by herbal, minty, and peppery undertones. The overall sensory experience is sharp, zesty, and fuel-driven.
Effects
Ultra Sour (CBD) is known for delivering a calm yet energetic experience, often described as clear-headed. It provides a cerebral uplift without the intense psychoactivity associated with its THC-forward ancestors.
This balanced profile makes it suitable for daytime use, offering functional clarity and a gentle mood enhancement. The effects are generally mild, aligning with its reinterpreted, CBD-enhanced nature.
Terpenes & Cannabinoids
Key terpenes commonly found in Ultra Sour (CBD) include limonene, caryophyllene, myrcene, and pinene. Limonene contributes citrus notes, caryophyllene adds peppery warmth, myrcene provides an earthy base, and pinene offers a piney aroma.
While specific percentages vary, this strain is characterized by a THC content around 10% and CBD content below 1%, reflecting its design as a lower-THC, higher-CBD variant compared to its lineage.
Growing
Ultra Sour (CBD) generally grows to a medium height, influenced by the indica-leaning traits of MK Ultra, resulting in moderate internodal spacing. The plant structure is typically robust, producing dense, conical buds that benefit from good light penetration.
Flowering time is standard, and the yield can be satisfying, especially with good cultivation practices. This strain is adaptable to various environments, though optimal conditions will enhance bud density and resin production.
Origins & Lineage
Ultra Sour (CBD) is a modern cultivar derived from the classic Ultra Sour line, which is commonly understood to be a cross between MK Ultra and East Coast Sour Diesel. This CBD-focused version was developed by crossing the original Ultra Sour with high-CBD strains.
The breeding goal was to retain the signature sour-citrus and fuel-driven aroma profile of Ultra Sour while tempering its intensity with CBD, creating a more balanced and functional cannabis experience. The specific CBD donor can influence the final cannabinoid ratios.