Why this one matters: hybrid genetics with a 20-25% THC ceiling and fruity/citrus-led terps. 8-10 weeks flowering, indoor or outdoor.

Smell-first impressions here lean hard into grapefruit peel and raw diesel — not a subtle combination, but growers who've run it say the citrus keeps the fuel from getting harsh. 505 Headbanger Auto is a Mephisto Genetics original, and the breeding shows in the numbers: 20–25% THC out of a strain that finishes in 8–10 weeks from seed, indoors or out, with no light-schedule management needed.

Yields typically land in the 400–500 g/m² range under a decent 600W setup, which is respectable for an autoflower asking so little in return. The plant stays compact enough for tent grows or a discreet patio run through a Canadian summer — think late June start if you're outdoors in Ontario or BC. Rated easy, so first-time autoflower growers won't find it punishing, but the THC ceiling means the final product isn't a beginner smoke.

Best suited to growers who want a fast, low-fuss run without sacrificing potency.

Genetics & Lineage

505 Headbanger Auto traces its genetics to 505 Headbanger (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

505 Headbanger 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 505 Headbanger Auto

505 Headbanger 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

505 Headbanger 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, 505 Headbanger 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 505 Headbanger 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 505 Headbanger Auto from Seennabis?

When you purchase 505 Headbanger Auto through Seennabis, you are buying directly from Mephisto Genetics — The autoflower specialist. Every order includes verified genetics, discreet shipping, and responsive seller support.