Extreme OG combines the resinous depth of Mendo Breath with the cerebral clarity of Headband and Trainwreck's legendary vigor—a trinity engineered by Mendocino Farms breeders in California's Emerald Triangle for serious outdoor cultivation. This feminized indica hits 27% THC and delivers euphoric, relaxed effects that deepen into sleepiness, ideal for evening use. Expect bright citrus notes layered beneath earthy and pine undertones that linger through the smoke. At 100–160cm tall, she's manageable for moderate growers, finishing in 8–9 weeks with a solid 350g/m² yield. Built for mountain terroir and outdoor-tuned genetics, Extreme OG rewards attention with robust harvests. Explore the full Mendocino Farms catalog or compare with Black Tuna for other NorCal standouts. For outdoor-focused seeds, browse feminized outdoor varieties.

Genetics & Lineage

Extreme OG traces its genetics to Proprietary cross (Mendocino Farms). This indica-dominant feminized seed produces plants that express the best traits of its parent lineage, delivering consistent results for growers of all experience levels. Bred by Mendocino 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 27%, this is a potent strain recommended for experienced users — newcomers should start low and go slow.

THC Level & Potency

Extreme OG delivers THC levels of 27%, placing it in the high-potency category alongside powerhouses like Gorilla Glue and Girl Scout Cookies. CBD content is minimal, so the psychoactive effects are front and center. The onset typically arrives within 5-10 minutes, settling into the body as a warm, heavy relaxation.

Growing Extreme OG

Extreme OG 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 350g/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 40-50% 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

Extreme OG features a citrus, earthy, pine terpene profile that develops complexity throughout the flowering cycle. Bright lemon and orange zest punch through on the inhale, with a tangy, refreshing finish. 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, Extreme OG 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 Extreme OG?

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 Extreme OG from Seennabis?

When you purchase Extreme OG through Seennabis, you are buying directly from Mendocino Farms — NorCal farm breeder from the Emerald Triangle — Mendocino County. Every order includes verified genetics, discreet shipping, and responsive seller support. Mendocino Farms has completed over 42,250 sales with a 4.7-star rating from 3,048 verified reviews.