The specs in one line: 22% THC, <2% CBD, 8-9 weeks flowering, 400g/m2 reported. Best indoor or outdoor. moderate grow.

NorCal Farms lists this at $29.97 — above the median of $29.87 across 4 listings. Pack options: 3-seed at $29.97, 5-seed at $44.99, plus larger sizes.

Smell-first, this one leans toward damp forest floor with a pull of ripe stone fruit underneath — not loud, but the kind of terp profile that stays with you. Sirius Black Auto is a NorCal Farms proprietary cross built around autoflowering efficiency: 8–9 weeks from sprout to chop, 400g/m² under decent light, and lab numbers sitting at 22% THC with minimal CBD.

Moderate difficulty puts it past pure beginner territory — you'll want to dial in your VPD and not skip the late-veg feed — but it's forgiving enough that a grower two or three runs in won't struggle. It handles both indoor and outdoor setups without complaint, which makes it a practical option for growers who split their season between a tent and a backyard plot. Best suited for intermediate growers looking for a reliable auto that doesn't require a full-time babysitter.

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.