How to Grow Amnesia Auto
Amnesia Auto brings the bright, uplifting character of the classic Amnesia into a fast, easy autoflowering plant. The Amnesia Auto strain runs from seed to harvest in 10–12 weeks whatever the season, leans 70% sativa, and rewards you with a genuinely high yield of fruity, resinous buds.
It is made by crossing Amnesia with Ruderalis, which keeps the sativa-forward, energetic feel of the original while adding the autoflowering trait, so the plant blooms on age rather than on a change in the light. At a medium 10–19% THC it stays approachable and clear rather than overwhelming.
Recommended Strains
Amnesia Auto
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THC | 10% - 19% (Medium) |
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Type | Autoflowering |
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Yield | High |
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Phenotype | 30% Indica / 70% Sativa |
Amnesia AK 47
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THC | 17% - 20% (Medium) |
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Type | Feminized |
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Yield | High |
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Phenotype | 30% Indica / 70% Sativa |
Because it is forgiving, productive and quick, Amnesia Auto sits among our beginner-friendly strains. You can see the full genetics and buy Amnesia Auto seeds on the strain page.
Strain Profile at a Glance
| THC | 10–19% (low to medium) |
|---|---|
| Lineage | Amnesia x Ruderalis |
| Type | Autoflowering |
| Genetics | 30% Indica / 70% Sativa |
| Climate | Temperate |
| Life cycle | 10–12 weeks (seed to harvest) |
| Harvest | All season |
| Height | 4.92 ft / 1.5 m |
| Yield | High |
| Yield indoor | 1.8–1.97 oz/ft² (550–600 g/m²) |
| Yield outdoor | 4.23–7.05 oz/plant (120–200 g/plant) |
| Grow difficulty | Beginner-friendly |
| Flavors | Fruity, Spicy, Sweet |
| Effects | Energetic, Euphoric, Giggly |
Promos & Deals
Climate and Where to Grow It
Amnesia Auto suits a temperate climate with warm, mild days and good light. Its sativa structure keeps the plant fairly open and airy, which helps airflow, but the resinous buds still benefit from moderate humidity and steady ventilation through flowering to keep bud rot away.
As an autoflower it does not wait for the season to bloom, so you can start it at almost any time of year and fit several runs into a long season. It reaches around 1.5 m, and a single outdoor plant can bring in a solid 120–200 g when it gets plenty of direct sun.
Indoors, keep daytime temperatures around 68–80°F (20–27°C) and trim the humidity down as the buds swell. A tidy, well-ventilated space lets this tall-ish sativa auto stretch and stack its colas without crowding.
Autoflower Growing Basics
With any autoflower, the key rule is that you do not switch the light schedule to trigger flowering. Amnesia Auto begins to flower by itself at around 3–4 weeks of age, so run a long day of 18–20 hours of light from seedling right through to harvest.
Start the seed directly in its final pot. Autos run on a fixed internal clock and dislike transplanting, so moving them mid-cycle costs growth you cannot recover in a short run. Keep training gentle: the vegetative window is short, so favour low-stress training over heavy topping, tucking and tying the branches of this stretchy sativa to spread the canopy and feed light to the lower buds.
Feeding Schedule (EC Guide)
Autoflowers are light feeders, so start low and build up only as the plant asks. The EC values below track the life-cycle stages rather than a separate veg-and-bloom switch.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4–0.6 | Very light feed, focus on healthy root growth |
| Vegetative growth | 0.8–1.2 | Weeks 2–4, raise nitrogen gently |
| Early flower | 1.2–1.4 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.4–1.6 | Peak bloom feed while buds swell |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Life Cycle and Harvest
The full life cycle runs 10–12 weeks from seed to harvest, a touch longer than some autos because of its sativa lean. As an autoflower you harvest when the plant is ready rather than on a fixed date, so let the trichomes guide you.
Expect vegetative growth in the first weeks, the automatic switch to flower around weeks 3–4, and bud stacking and resin through to the finish. The strong sativa lean builds long, resinous colas, and this is a genuinely high-yielding auto: expect a big 1.8–1.97 oz/ft² (550–600 g/m²) indoors. Harvest when most trichomes are cloudy with a few amber for the fullest, brightest expression, and give the plant a 1–2 week plain-water flush before cutting.
Drying and Curing
Dry whole plants or branches in a dark room at around 60°F (15–18°C) and 55–60% humidity for 7–14 days, until the thin stems snap rather than bend. A slow, even dry keeps the inside from staying damp while the outside dries, which protects the aroma on these resinous sativa buds.
Then cure the trimmed buds in sealed jars, burping them daily for the first week and letting them settle for three to four weeks. A proper cure sharpens the fruity-sweet aroma, softens the spicy edge and smooths the smoke, which is exactly what this Amnesia auto deserves.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Amnesia Auto is a frosty, resin-coated plant, so the trim is great for dry sift, bubble hash or rosin, giving you a bonus run of concentrate from material most growers throw away.
Flavor and Terpenes
Amnesia Auto tastes fruity and sweet with a spicy edge, a lively, moreish profile it inherits from its Amnesia haze parent. The fruit leads, backed by a gentle sweetness and a peppery, spicy warmth underneath.
With several terpenes in play, six lead the character: limonene (bright citrus-fruit lift), terpinolene (fresh, fruity and floral), myrcene (an earthy, sweet base), caryophyllene (peppery, spicy warmth), pinene (a clean, resinous pine edge) and linalool (soft floral). Behind them sit carene and ocimene, rounding out the fruity, spicy, sweet profile without any added flavouring.
Effects and Best Use
Amnesia Auto reflects its sativa-dominant genetics, with reported effects that are energetic, euphoric and giggly. It is a bright, upbeat and sociable character that suits daytime use, creative sessions and staying active rather than winding down.
With its low-to-medium 10–19% THC it stays approachable rather than overpowering, which makes it easy to enjoy through the day. Combined with its fruity flavour and high-yielding, easy grow, it is a well-rounded auto that is as rewarding to cultivate as it is to smoke.
Common Problems and Pro Tips
Amnesia Auto is an easy autoflower, but it is a sativa-leaning auto that runs a little longer than most, so plan for the stretch and the timing.
- Train early and lightly: autos don’t recover from hard stress, so use low-stress training while the plant is young rather than topping it late.
- Give it headroom: the 70% sativa side stretches tall for an auto, so leave vertical space indoors and spread the canopy so the lower buds get light.
- Feed on the light side: autoflowers need less food than photoperiods, so start gentle and only step up if the plant shows it is hungry.
Expert tip: this one takes 10-12 weeks from seed whatever the season, a bit longer than a typical auto. Let it finish fully instead of harvesting early and the fruity, uplifting character comes through best.
Frequently Asked Questions
Is Amnesia Auto indica or sativa?
It is sativa-dominant, at 70% sativa and 30% indica, so the effect is bright, energetic and uplifting. That sativa lean also shapes the plant: even as an autoflower it stretches tall and grows a looser bud structure, so leave vertical space indoors and spread the canopy early so the lower buds get enough light.
How long is the Amnesia Auto life cycle?
About 10 to 12 weeks from seed to harvest, a little longer than a typical auto because of its sativa side. As an autoflower it flowers on age rather than on a light change and can be run all season. Let it finish fully instead of rushing the harvest, and the fruity character comes through best.
Do I need to change the light cycle?
No. Keep it on a long day of 18 to 20 hours of light from seedling to harvest. It starts flowering on its own at around three to four weeks, so there is no 12/12 flip to time. A steady, generous light schedule gives it the energy to build buds across its longer auto cycle.
Is Amnesia Auto good for beginners?
Yes. It is an easy, forgiving autoflower listed among our beginner-friendly strains. Start it in its final pot to avoid transplant shock, keep any training gentle with low-stress bending rather than topping, and feed on the light side, since autos need less than photoperiods. Do that and it mostly looks after itself from seed to harvest.
What does Amnesia Auto taste like?
Expect a fruity, sweet flavour with a spicy edge, the lively character that made the original Amnesia famous. That profile comes from its limonene, terpinolene, myrcene and caryophyllene. Dry slowly in a cool, dark space and cure in jars for a couple of weeks so those bright, fruity terpenes hold rather than fading.
How much does Amnesia Auto yield?
It is a high producer for an autoflower. Indoors it gives a big 1.8 to 1.97 oz/ft² (550 to 600 g/m²), while a single outdoor plant can reach 4.23 to 7.05 oz (120 to 200 g) in a long season. Give it headroom and an open canopy so the stretchy sativa structure fills out evenly.
