The specs in one line: 20-25% THC, <1% CBD, 8-10 weeks flowering, 400-500g/m2 reported. Best indoor or outdoor. easy grow.

Mephisto Genetics built Grade 10 as a no-fuss autoflower that doesn't ask much and gives back a lot. Running 8–10 weeks from seed to harvest, it fits neatly into a tight rotation whether you're running a tent or working outdoor beds — both environments suit it well. THC consistently lands in the 20–25% range, which puts it firmly in the upper tier for an auto, and indoor growers regularly pull 400–500g/m² without chasing environmental perfection. The flavor profile skews earthy and grounded rather than loud or candy-sweet, which some growers actively prefer over the fruit-bomb trends flooding catalogs right now.

Difficulty is genuinely easy here — no finicky feeding windows, no light-schedule juggling. You set it and manage basic watering and nutrients. If you've had trouble keeping autos happy in the past, the forgiving structure of this one makes it a reasonable reset point. Best suited for newer growers building confidence or experienced growers who want reliable fill-in plants between heavier projects.

Genetics & Lineage

Grade 10 Auto traces its genetics to Grade 10 (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

Grade 10 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 Grade 10 Auto

Grade 10 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

Grade 10 Auto features a earthy terpene profile that develops complexity throughout the flowering cycle. The complex aromatic bouquet develops fully after proper curing. 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, Grade 10 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 Grade 10 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 Grade 10 Auto from Seennabis?

When you purchase Grade 10 Auto through Seennabis, you are buying directly from Mephisto Genetics — The autoflower specialist. Every order includes verified genetics, discreet shipping, and responsive seller support.