How to Grow Blue Amnesia Autoflower
Blue Amnesia Autoflower is a 60% sativa autoflowering strain that blends the cerebral lift of Amnesia with the sweet fruit of Blueberry. Compact and quick, the Blue Amnesia strain runs from seed to harvest in 8–10 weeks whatever the season, which makes it a tidy, low-fuss grow.
Sometimes listed as Amnesia Haze x Blueberry autoflower, it takes a fresh, herbal, haze-style character from its Amnesia parent and a sweet undertone from Blueberry, with Ruderalis added to make it flower on age. The payoff is an uplifting, stimulating plant in a small, manageable package.
Recommended Strains
Blue Amnesia Auto
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THC | 17% - 18% (Medium) |
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Type | Autoflowering |
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Yield | Low |
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Phenotype | 40% Indica / 60% Sativa |
Blue Cheese
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THC | 16% - 20% (Medium) |
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Type | Feminized |
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Yield | High |
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Phenotype | 80% Indica / 20% Sativa |
Because it flowers on its own and forgives beginner mistakes, it sits among our beginner-friendly options. You can see the full genetics and buy Blue Amnesia Auto seeds on the strain page, and find more cuts in the Haze strains collection.
Strain Profile at a Glance
| THC | 17–18% (Medium) |
|---|---|
| Lineage | Amnesia x Blueberry x Ruderalis |
| Type | Autoflowering |
| Genetics | 40% Indica / 60% Sativa |
| Climate | Dry |
| Life cycle | 8–10 weeks (seed to harvest) |
| Harvest | All season |
| Height | 3.28 ft / 1 m |
| Yield | Low |
| Yield indoor | 0.66–0.82 oz/ft² (200–250 g/m²) |
| Yield outdoor | 3.53–5.29 oz/plant (100–150 g/plant) |
| Grow difficulty | Beginner-friendly |
| Flavors | Herbal, Sweet |
| Effects | Stimulating, creative, relaxed |
Promos & Deals
Climate and Where to Grow It
Blue Amnesia Autoflower is suited to a dry climate, which plays to its haze-leaning genetics: airy, resinous buds prefer low humidity and dislike damp, stagnant air. In an arid environment the main job is simply making sure the plant does not dry out too quickly rather than fighting mould.
As an autoflower it does not depend on the season to bloom, so you can run it year-round and fit several cycles into a long season where the weather allows. It is a genuinely small plant at around 1 m, which makes it easy to tuck into a corner of a tent, a balcony or a discreet patch outdoors.
Indoors, keep temperatures around 68–80°F (20–27°C) and the humidity on the lower side through flowering. Good airflow and a dry room suit this strain far better than a crowded, humid space.
Autoflower Growing Basics
With any autoflower, the golden rule is that you do not switch the light schedule to start flowering. Blue Amnesia 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 resent transplanting, so moving them mid-run costs growth you can’t recover in a short life cycle. Germinate straight into the container you intend to finish in and keep root handling to a minimum.
Keep training gentle. With only a short vegetative window there is no time to bounce back from heavy topping, so use low-stress training instead: tuck and tie the sativa branches to even out the canopy rather than cutting. On a small plant like this, that light touch is usually all you need.
Feeding Schedule (EC Guide)
Autoflowers are light feeders, and this is a small, lower-yielding plant, so start low and only build up if it clearly wants more. 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 form |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Life Cycle and Harvest
The full life cycle runs 8–10 weeks from seed to harvest. 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 weeks 1–3, the automatic switch to flower around weeks 3–4, and bud development and resin through to week 8–10. The sativa lean means slim, elongated flowers rather than dense nuggets, which is normal for a haze-type auto. Harvest when most trichomes are cloudy for a bright, uplifting finish, or wait for a little amber if you want it heavier.
Give the plant a 1–2 week plain-water flush before cutting. Because it is an all-season auto, you can set your start date so the finish lands whenever suits you, indoors or out.
Drying and Curing
Dry whole plants or branches in a dark space at around 60°F (15–18°C) and 55–60% humidity for 7–14 days, until the thin stems snap cleanly. A dry climate makes this easy, but watch that the airy buds don’t crisp too fast.
Then cure the trimmed buds in sealed jars, burping them daily for the first week. Three to four weeks of curing lifts the herbal-sweet aroma and smooths the smoke, which matters even more on a lighter-yielding plant where you want every gram to shine.
What to Do With Your Trim
Don’t bin the sugar leaves you remove during manicuring. The resinous trim is ideal for dry sift, rosin or infused edibles, so you get extra value from a plant that already yields modestly instead of throwing the offcuts away.
Flavor and Terpenes
Blue Amnesia tastes herbal and sweet, the fresh, almost incense-like haze character of Amnesia layered over a soft Blueberry sweetness. There is a subtle citrus lift in there too, but the headline notes are green-herbal and sugary rather than fruity-sharp.
Six terpenes shape the aroma most: terpinolene (the fresh, haze-style lift), myrcene (earthy-sweet base), pinene (resinous pine), limonene (a light citrus edge), ocimene (sweet, herbal) and caryophyllene (a peppery kick). Behind them sit carene and linalool, which add woody and soft floral depth to round the profile off.
Effects and Best Use
Blue Amnesia Autoflower is stimulating, creative and relaxed, a mostly-sativa profile that lifts the mind while keeping the body at ease.
That combination makes it a natural daytime strain: clear and engaging for creative work or socialising, with just enough relaxation to stop it feeling edgy. Paired with its compact size and quick life cycle, it is an easy, rewarding auto for growers who want an uplifting result without a big plant or a long wait.
Common Problems and Pro Tips
Blue Amnesia Autoflower is a small, easy grow, but it is a compact sativa auto with a modest yield, so make the most of your space.
- Train early and lightly: autos do not recover from hard stress, so use low-stress bending while young and start it in its final pot to avoid transplant shock.
- Fill the space: it stays small at around 1 m with a modest yield, so running several plants in a sea of green helps you make the most of the tent.
- Light the lower buds: as a 60% sativa it grows an open, airy structure, so spread the branches so the lower buds get enough light to fill out.
Expert tip: it prefers a drier climate, so keep humidity down in flower. A slow, careful cure protects its fresh herbal haze and soft Blueberry sweetness.
Frequently Asked Questions
Is Blue Amnesia indica or sativa?
It is sativa-dominant, at roughly 60% sativa and 40% indica, so the effect leans bright and uplifting with a relaxed body side. That sativa lean gives an open, airy structure even on a compact plant, so spread the branches and keep the lower buds well lit so they fill out.
How long is the Blue Amnesia Autoflower life cycle?
About 8 to 10 weeks from seed to harvest. As an autoflower it flowers on age rather than on a light change, so the clock does not stop for mistakes, and it can be run all season. Plan your feed and training around that short, fixed window to get the most from it.
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 helps this small plant build what buds it can.
Is Blue Amnesia good for beginners?
Yes. It is a small, easy, forgiving autoflower at around 1 m, listed among our beginner-friendly strains. Start it in its final pot, keep any training gentle, and it mostly looks after itself. Because the yield is modest, running a few plants together helps you fill the tent and lift the total.
What does Blue Amnesia taste like?
Expect a fresh, herbal haze character over soft Blueberry sweetness, with a light citrus lift. That profile comes from its terpinolene, pinene and limonene. It prefers a drier climate, so keep humidity down, and cure slowly in jars so the delicate haze and berry notes hold up after harvest.
How much does Blue Amnesia Autoflower yield?
It is a modest producer: 0.66 to 0.82 oz/ft² (200 to 250 g/m²) indoors and 3.53 to 5.29 oz (100 to 150 g) from a potted plant outdoors, which is typical for a small auto. Strong light and a sea-of-green layout help you make the most of the space.
