Amnesia Fast is Seedsman's fast-version Amnesia: the same Haze-based sativa profile crossed to shorten flowering by a week or two, so that it finishes outdoors in climates where the original is marginal. It keeps much of Amnesia's uplifting character while behaving more like a hybrid in the tent.
Amnesia Fast at a glance
| Breeder | Seedsman |
|---|---|
| Seed type | Feminised |
| Flowering type | Early/fast |
| Genetics | Sativa dominant |
| THC | High THC (16-24%) |
| CBD | Low CBD (0-1%) |
| Flowering / harvest time | 9 to 11 weeks |
| Height | Medium |
| Yield indoor | High Yield (450-600gr/m2) |
| Yield outdoor | High Yield (450-750gr/plant) |
| Aroma | Fruity and piney |
Genetics and lineage
Amnesia Fast is a feminised early/fast variety from Seedsman, classed as sativa dominant. Potency is rated high THC (16-24%) with low CBD (0-1%), which places it in the mainstream of modern genetics.
Planning a grow of Amnesia Fast
Indoors, plan on roughly 13–15 weeks from seed to harvest: about 4 weeks of vegetative growth before switching to 12/12, then 9–11 weeks of flowering.
Outdoors in central Europe a 9–11 week flowering window means harvest lands in mid-to-late October — workable in a dry autumn, but a greenhouse or a sheltered south-facing spot takes the risk out. In southern France, Spain and Italy it is an easy outdoor plant.
Medium height: fits a standard 1.2 m tent without training, though a single topping evens out the canopy.
Sativa-dominant plants stretch more and prefer slightly lower nitrogen in flower; give them headroom and resist over-feeding.
What yield to expect
The breeder rates indoor yield as high yield (450-600gr/m2). Outdoors the rating is high yield (450-750gr/plant), which assumes a full season in good sun and a large container or open soil. Treat these as the ceiling under experienced hands; a first grow typically lands at half to two-thirds of the figure.
Aroma and effect
Growers describe the terpene profile as fruity and piney.
Similar strains from Seedsman
- Bruce Banger Fast — sativa dominant, high THC (16-24%)
- Blue Dream Fast — sativa dominant, high THC (16-24%)
- C99 x Blueberry Fast — sativa dominant, high THC (16-24%)
Where to buy Amnesia Fast seeds in Europe
Amnesia Fast Feminised Seeds ships from Express Highs’ EU stock in several pack sizes, alongside the rest of the Seedsman range. Seeds are sold as collectable genetics; check the law where you live before germinating.
Frequently asked questions
How long does Amnesia Fast take to flower?
Amnesia Fast flowers in 9–11 weeks after switching to a 12/12 light cycle.
How strong is Amnesia Fast?
Seedsman rates Amnesia Fast as high THC (16-24%) with low CBD (0-1%).
Are Amnesia Fast seeds feminised?
Yes — these are feminised seeds, so every plant should flower as a female.
Disclaimer
The information provided in this article is intended for informational purposes only and does not constitute medical, legal, pharmaceutical, or professional advice of any kind. Express Highs makes no representations or warranties regarding the accuracy, completeness, or suitability of the content for any particular purpose. Readers should not rely on this content as a substitute for advice from a qualified medical professional, legal counsel, or other relevant expert.
The products and substances discussed on this blog may be subject to varying legal restrictions depending on your country, region, or jurisdiction. It is the sole responsibility of the reader to be aware of and comply with all applicable local, national, and European Union laws and regulations before purchasing, possessing, or using any product referenced herein. Express Highs accepts no liability for any consequences arising from actions taken based on the content of this article.
This blog is intended for adults only. By reading this content, you confirm that you are of legal age in your jurisdiction.
Nothing in this article is intended to diagnose, treat, cure, or prevent any disease or medical condition. Any health-related claims discussed are not evaluated by the European Food Safety Authority (EFSA) or any other regulatory body unless explicitly stated.
Express Highs reserves the right to update or remove content at any time without notice. All content is published in good faith and for general informational purposes only.
, 9–11 weeks. Flowering time, yield, height and how to plan the grow in Europe.){kind=link}