Sirius Black bridges NorCal's legendary sun-grown heritage with modern autoflowering genetics, delivering a fast-finishing hybrid that captures old-school vibes with contemporary vigor. This cross combines reliable genetics for a moderate grow—reaching 100-160cm over 8-9 weeks—while pushing 400g/m² yields of frost-covered buds. Expect euphoric, relaxed effects paired with earthy, fruity flavors that linger long after the smoke clears. Whether you're exploring autoflower seeds for the first time or stocking up, Sirius Black rewards both beginners and seasoned cultivators with consistent results. Check the full NorCal Farms catalog for other standouts, or compare it to Northern Berry if you want a feminized alternative from the same lineage.

Genetics & Lineage

Sirius Black Auto traces its genetics to Proprietary cross (NorCal Farms). This hybrid-dominant autoflower seed produces plants that express the best traits of its parent lineage, delivering consistent results for growers of all experience levels. Bred by NorCal Farms, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily relaxed and euphoric effects, making this strain ideal for evening use and unwinding after a long day. The body-centered stone builds gradually, easing tension and promoting deep physical relaxation. With THC levels reaching 22%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Sirius Black Auto delivers THC levels of 22%, placing it in the moderate-to-strong range that most regular consumers find comfortable. CBD content is minimal, so the psychoactive effects are front and center. The onset typically arrives within minutes with a balanced head-and-body experience that evolves over time.

Growing Sirius Black Auto

Sirius Black Auto is rated as moderate difficulty, making it suitable for growers with some experience. Basic knowledge of nutrient schedules, pH management, and environmental controls will help maximize results.

Indoor Growing: Expect a flowering time of 8-9 weeks with yields of 400g/m2. Plants typically reach 100-160cm indoors. Standard training techniques like topping and LST will help manage height and improve light penetration. Maintain temperatures between 68-80°F with relative humidity around 45-55% during flowering.

Outdoor Growing: This versatile strain performs well in both indoor and outdoor environments. Outdoor growers in warm climates can expect harvest from late September through October. Watch for humidity during late flowering to prevent bud rot, especially with dense flower formations.

Flavor, Aroma & Terpene Profile

Sirius Black Auto features a earthy, fruity terpene profile that develops complexity throughout the flowering cycle. Sweet berry and grape notes dominate the inhale, with a sugary exhale that lingers on the palate. The aroma intensifies significantly during the final 2-3 weeks of flowering — carbon filtration is recommended for indoor grows requiring discretion.

Medical Benefits

While individual experiences vary, Sirius Black Auto is commonly reported to help with stress relief, chronic pain, insomnia, and muscle tension. The deeply relaxing effects make it a popular choice among medical users seeking nighttime relief. As with any cannabis strain, start with a low dose and increase gradually. Consult a healthcare professional before using cannabis for medical purposes.

Who Should Grow Sirius Black Auto?

This strain is ideal for intermediate growers ready to push their skills and be rewarded with superior results. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy Sirius Black Auto from Seennabis?

When you purchase Sirius Black Auto through Seennabis, you are buying directly from NorCal Farms — Northern California craft farm specializing in sun-grown sativas and hybrids. Every order includes verified genetics, discreet shipping, and responsive seller support. NorCal Farms has completed over 35,250 sales with a 4.7-star rating from 2,712 verified reviews.