Buckfast OG blends two legendary lineages into a fast-finishing autoflower that delivers serious potency without the fuss. This hybrid crosses the iconic OG Kush with Mephisto's carefully selected autoflowering genetics, resulting in a strain that captures the diesel-forward profile of its parent while maintaining the speed and reliability autoflower growers demand. Expect 20-25% THC alongside relaxed, euphoric, and creative effects that suit both unwinding and artistic pursuits. The flavor profile leans fruity and citrus-forward with that characteristic diesel undertone that OG enthusiasts crave. Growing from seed to harvest takes just 8-10 weeks, with compact plants reaching 60-100cm and yielding 400-500g/m² in optimal conditions—making it an excellent choice for beginners and experienced cultivators alike. Browse autoflower seeds to explore more fast-finishing varieties, check the full Mephisto Genetics catalog for additional crosses, or compare this with the equally impressive Blu Tang Clan for another award-winning option.

Genetics & Lineage

Buckfast OG Auto traces its genetics to Buckfast OG (Mephisto Genetics). 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 Mephisto Genetics, 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 23%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Buckfast OG Auto delivers THC levels of 20-25%, 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 Buckfast OG Auto

Buckfast OG Auto is rated as easy difficulty, making it an excellent choice for first-time growers. The plants are resilient, forgiving of common mistakes like overwatering or inconsistent feeding schedules.

Indoor Growing: Expect a flowering time of 8-10 weeks with yields of 400-500g/m2. Plants typically reach 60-100cm 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

Buckfast OG Auto features a fruity, citrus, diesel 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, Buckfast OG 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 Buckfast OG Auto?

This strain is ideal for beginner growers looking for a reliable, low-maintenance plant that delivers consistent results without advanced techniques. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy Buckfast OG Auto from Seennabis?

When you purchase Buckfast OG Auto through Seennabis, you are buying directly from Mephisto Genetics — The autoflower specialist. Every order includes verified genetics, discreet shipping, and responsive seller support. Mephisto Genetics has completed over 84,500 sales with a 4.9-star rating from 5,680 verified reviews.