Why this one matters: sativa genetics with a 18-24% THC ceiling and fruity/citrus-led terps. 10-14 weeks flowering, indoor or outdoor.

Smell-first, this one announces itself early — a sharp citrus-diesel combination that builds through flowering and doesn't let up at harvest. Screwdriver OG Feminized runs sativa-dominant, tracing back to Sensi Seeds' own genetic work, and it behaves accordingly: long branching, open structure, and a flowering window that stretches 10 to 14 weeks depending on how far you push it. Yields land between 500–700g/m² indoors when managed properly, but that ceiling requires real canopy work — defoliation helps keep airflow through those elongated branches, and the large indica-influenced fan leaves will shade bud sites if left unchecked.

THC typically tests 18–24%, with the effect leaning cerebral and active rather than sedating. It runs well indoors or outdoors; outdoor growers in warmer Canadian regions (southern BC, southern Ontario) can make it work with a late enough start. Best suited to growers with a few runs under their belt who aren't intimidated by a longer flowering schedule.

Genetics & Lineage

Screwdriver OG traces its genetics to Screwdriver OG (Sensi Seeds genetics). This sativa-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 Sensi Seeds, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily energetic and euphoric effects, making this strain perfect for daytime use, creative projects, and staying productive. The cerebral lift arrives quickly, sharpening focus and inspiring motivation. With THC levels reaching 24%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Screwdriver OG delivers THC levels of 18-24%, 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, starting as a cerebral buzz that gradually expands.

Growing Screwdriver OG

Screwdriver OG is rated as advanced difficulty, making it best suited for experienced cultivators who understand advanced techniques. This strain rewards meticulous attention to detail with exceptional results.

Indoor Growing: Expect a flowering time of 10-14 weeks with yields of 500-700g/m². Plants typically reach 60-100cm indoors. This strain responds exceptionally well to SCROG (Screen of Green) and LST (Low Stress Training), which can boost yields significantly. 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 the dense, heavy buds this strain produces.

Flavor, Aroma & Terpene Profile

Screwdriver OG features a fruity, citrus, diesel, sweet 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, Screwdriver OG is commonly reported to help with depression, fatigue, lack of motivation, and ADHD symptoms. The uplifting, focusing effects make it popular among medical users seeking daytime functionality. 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 Screwdriver OG?

This strain is ideal for advanced cultivators and breeders seeking exceptional phenotypes and willing to invest the extra care required. If you need a daytime boost for creativity and sustained focus, look no further.

Why Buy Screwdriver OG from Seennabis?

When you purchase Screwdriver OG through Seennabis, you are buying directly from Sensi Seeds — The world's oldest cannabis seed bank, founded in Amsterdam in 1985. Every order includes verified genetics, discreet shipping, and responsive seller support. Sensi Seeds has completed over 177 sales.