Seedsman runs this as a sativa feminized line — 18-25% THC lab range, earthy/sweet-dominant terps, 10-12 weeks from flip.

Seedsman lists this at $26.96 — below the median of $39.83 across 3 listings. Pack options: 3-seed at $26.96, 5-seed at $35.06, plus larger sizes.

Lineage: Amnesia Fast traces back to Seedsman's own breeding program, taking the classic Amnesia sativa and compressing its notoriously long flower cycle into something more manageable — 10 to 12 weeks rather than the 14-plus weeks old-school Amnesia cuts used to demand. That alone makes it worth a second look for growers who want sativa-leaning effects without tying up a tent through winter.

THC tests typically land between 18–25%, and indoor yields push 500–650g/m² under dialed-in conditions, which is solid for a sativa-dominant plant. The aroma profile skews earthy with a subtle sweetness — nothing sharp or chemical, just clean and grounded. It handles both indoor and outdoor environments reasonably well, though the moderate difficulty rating means you'll want some experience managing stretch and feeding schedules before committing a full run to it.

Best suited for intermediate growers who've already worked through a couple of photoperiod runs and are ready to step up to a higher-yielding sativa without the marathon flower time.

Genetics & Lineage

Amnesia Fast traces its genetics to Amnesia Fast (Seedsman 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 Seedsman, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily energetic and creative 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 25%, this is a potent strain recommended for experienced users — newcomers should start low and go slow.

THC Level & Potency

Amnesia Fast delivers THC levels of 18-25%, 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 minutes, starting as a cerebral buzz that gradually expands.

Growing Amnesia Fast

Amnesia Fast 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 10-12 weeks with yields of 500-650g/m². Plants typically reach 120-200cm 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

Amnesia Fast features a earthy, sweet terpene profile that develops complexity throughout the flowering cycle. A smooth, candy-like sweetness defines the flavor, with subtle complexity on the exhale. 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, Amnesia Fast 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 Amnesia Fast?

This strain is ideal for intermediate growers ready to push their skills and be rewarded with superior results. If you need a daytime boost for creativity and sustained focus, look no further.

Why Buy Amnesia Fast from Seennabis?

When you purchase Amnesia Fast through Seennabis, you are buying directly from Seedsman — One of the world's largest cannabis seed catalogs, carrying 4,000+ strains from 100+ breeders since 2003. Every order includes verified genetics, discreet shipping, and responsive seller support. Seedsman has completed over 185 sales.