Amnesia Haze is one of the defining sativas of the Amsterdam coffeeshop era: a Haze line with Southeast Asian and Jamaican roots that won the Cannabis Cup in 2004 and has been a top seller in Dutch shops ever since. Royal Queen Seeds' version keeps the long-flowering, tall, energetic character of the original, which makes it a plant for growers with headroom and patience rather than a first grow — and the most-bought seed at Express Highs.
Amnesia Haze at a glance
| Breeder | Royal Queen Seeds |
|---|---|
| Seed type | Feminised |
| Flowering type | Photoperiod |
| Genetics | Sativa dominant |
| Lineage | Original Amnesia Haze |
| THC | High THC (16-24%) |
| CBD | Medium CBD (1-5%) |
| Flowering / harvest time | 9 to 11 weeks |
| Height | Large |
| Yield outdoor | High Yield (450-750gr/plant) |
| Aroma | Earthy |
Genetics and lineage
Amnesia Haze is a feminised photoperiod variety from Royal Queen Seeds, classed as sativa dominant. The breeder lists its parentage as Original Amnesia Haze. Potency is rated high THC (16-24%) with medium CBD (1-5%), which places it in the mainstream of modern genetics.
Planning a grow of Amnesia Haze
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.
Tall growth: budget for 1.5–2× the vegetative height after the flowering stretch, and consider topping or a screen (ScrOG) in a tent under 2 m.
Sativa-dominant plants stretch more and prefer slightly lower nitrogen in flower; give them headroom and resist over-feeding.
What yield to expect
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 earthy.
Similar strains from Royal Queen Seeds
- Dance World CBD — sativa dominant, medium THC (10-15%)
- Mimosa — sativa dominant, high THC (16-24%)
- AMG (Amnesia Mac Ganja) — sativa dominant, high THC (16-24%)
Where to buy Amnesia Haze seeds in Europe
Amnesia Haze Feminised Seeds ships from Express Highs’ EU stock in several pack sizes, alongside the rest of the Royal Queen Seeds range. Seeds are sold as collectable genetics; check the law where you live before germinating.
Frequently asked questions
How long does Amnesia Haze take to flower?
Amnesia Haze flowers in 9–11 weeks after switching to a 12/12 light cycle.
How strong is Amnesia Haze?
Royal Queen Seeds rates Amnesia Haze as high THC (16-24%) with medium CBD (1-5%).
Are Amnesia Haze seeds feminised?
Yes — these are feminised seeds, so every plant should flower as a female.
Disclaimer
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