Amnesia Haze Autoflower

Amnesia Haze Autoflower Cannabis Seeds by Royal Queen Seeds

Amnesia Haze Autoflower is a feminised autoflowering cannabis seed that delivers the classic Amnesia genetics in a faster, more forgiving format. Royal Queen Seeds crossed the legendary Amnesia Haze — sometimes called "The Bomb" — with Ruderalis to produce a Sativa-dominant auto that finishes in roughly 80 days from seed to harvest. You get the same spicy, sweet, musky terpene profile and those distinctive long foxtail buds, but without the 12–20 week flowering marathon that regular Amnesia phenotypes demand. Available in packs of 1, 3, 5, or 10 seeds.

Amnesia Haze Autoflower Specifications

Here are the key stats straight from Royal Queen Seeds. These numbers match what we've seen reported by growers running this strain indoors under standard conditions.

Why Amnesia Haze Autoflower Seeds Deserve a Spot in Your Tent

Regular Amnesia Haze is one of those strains that everybody wants to grow and half of them give up on. The flowering time is brutal — 12 weeks minimum, and some phenotypes stretch to 20 weeks. That's nearly five months of flowering alone, plus veg time, plus the light schedule management that photoperiod Sativas demand. For growers in smaller spaces or cooler climates, it's often just not practical.

Royal Queen Seeds solved this by crossing Amnesia Haze with Ruderalis genetics. The Ruderalis contribution introduces autoflowering behaviour — the plant transitions from vegetative growth to flowering based on age rather than light cycle changes. The result: roughly 80 days from germination to harvest, regardless of your light schedule. You can run 20/4 or 18/6 from start to finish without ever flipping to 12/12. That simplicity is a genuine advantage, especially if you're running multiple strains in the same tent on different schedules.

The honest limitation? You trade some yield for that speed. A photoperiod Amnesia Haze in the hands of an experienced grower can produce significantly more than 150g per plant. But 150g from an autoflower in 80 days is a solid return — and you can fit 2–3 harvests into the same calendar window that one photoperiod run would occupy. The maths often works out in the auto's favour.

What Amnesia Haze Autoflower Plants Look and Smell Like

Even in autoflower form, the Sativa heritage is obvious. Plants grow tall for an auto — up to 150cm indoors — with the big, narrow-fingered fan leaves and open, airy structure you'd expect from a Sativa-leaning hybrid. The buds form in long, stretched clusters that genuinely resemble foxtails: lime green, coated in a visible layer of resin, and stacking along the upper branches rather than forming one dense central cola.

The aroma is where this strain earns its name. Crack open a cured jar and you get that unmistakable Amnesia profile — spicy and sweet with a musky undertone that fills a room fast. If you've ever walked through an Amsterdam coffeeshop and caught that sharp, herbal sweetness drifting from the back, there's a decent chance it was Amnesia. The autoflower version preserves this terpene profile remarkably well. A carbon filter during flowering is not optional unless your neighbours are very understanding.

Royal Queen Seeds notes an extremely high CBD level for this strain, which is unusual for an Amnesia cross. Most Amnesia phenotypes lean heavily toward the cerebral, uplifting side with minimal CBD. The Ruderalis genetics likely contribute to this elevated cannabinoid content. According to a single nucleotide polymorphism study on cannabis genetics (PMC7819309), breeding with diverse genetic lines — including Ruderalis — can produce varied cannabinoid profiles that differ significantly from the parent strain.

How to Grow Amnesia Haze Autoflower Seeds

Autoflowers are forgiving, but they're not foolproof. Here's the practical approach we'd recommend based on what works for this strain specifically.

1. Germinate carefully. Use the paper towel method or soak seeds in water for 12–24 hours until you see a taproot emerge. Amnesia Haze Autoflower seeds are feminised, so every seed should produce a female plant — no need to sex them later.
2. Plant directly into the final pot. This is critical for autoflowers. Transplanting stresses the plant and costs you recovery time that an autoflower simply doesn't have. Use a 7–11 litre pot with good drainage. Fabric pots work well for aeration.
3. Set your light schedule to 18/6 or 20/4. Autoflowers don't need a 12/12 flip. More light hours generally means more energy for growth. Run this schedule from day one through harvest.
4. Keep humidity at 60–70% during seedling stage, dropping to 40–50% during flowering. The Sativa structure means good airflow between branches, which helps prevent mould — but don't get complacent in the final weeks when buds are dense with resin.
5. Feed lightly. Autoflowers are more sensitive to nutrient burn than photoperiod plants. Start at half the manufacturer's recommended dose and increase only if the plant looks hungry (pale lower leaves, slow growth).
6. Watch the height. At up to 150cm, this auto can outgrow a short tent. If vertical space is tight, gentle LST (low-stress training) in the first 3 weeks keeps the canopy even without topping — which autoflowers generally don't respond well to.
7. Harvest around day 80. Check trichomes with a jeweller's loupe. Mostly cloudy with a few amber trichomes is the sweet spot for this strain's reported cerebral character.
8. Dry slowly in a dark room at 18–20°C and 55–60% humidity for 7–10 days. Then cure in glass jars. Remember to burp the jars at least once a day for the first 10 days, then two or three times a week for the remaining cure time. Proper curing brings out that spicy, musky Amnesia aroma.

Amnesia Haze Autoflower vs. Photoperiod Amnesia Haze

This is the question we get asked most about this strain. Here's a straightforward comparison.

If speed and simplicity matter more than maximum yield per plant, the autoflower wins. If you have the space, the patience, and the experience to push a photoperiod Sativa to its full potential, the original Amnesia Haze will reward you with bigger harvests. Neither choice is wrong — it depends on your setup and your patience.