Amnesia Auto by Seed Stockers – High-THC Autoflowering Haze Strain for Beginners & Experts

Amnesia Auto by Seed Stockers is a high-THC, sativa-dominant autoflower that delivers a potent, psychedelic experience and massive harvests in just 11 weeks from seed to harvest—no light cycle changes needed.

Worried your first autoflower won’t live up to the legendary Haze name? That you’ll end up with weak yields, low potency, or a plant that just won’t flower right?

It’s a real fear—especially when you’re investing in genetics that promise big results. You don’t want to waste time, space, or energy on a dud. The thought of a slow, underperforming plant can make you hesitate, maybe even stick to the same old strain you’ve grown a hundred times before.

Amnesia Auto shuts that fear down. This isn’t a watered-down Haze clone—it’s the real deal, bred for power and performance. With THC levels hitting 23% and a proven track record of heavy, resinous buds, it’s designed to impress from day one. Grow it indoors under 20 hours of light or outdoors with 5–6 hours of direct sun, and you’ll see why it’s one of Seed Stockers’ bestsellers. It’s forgiving enough for beginners, yet potent enough to satisfy connoisseurs.

What to expect in your first few grows

You’ll notice fast germination and strong early growth—this plant doesn’t mess around. The first few weeks are all about vertical stretch, especially in sativa-leaning environments. Don’t panic if it gets tall; that’s normal. By week 4–5, pre-flowers will appear, and the real magic begins. Expect a spicy, sour aroma to develop early, and sticky trichomes within weeks. Your first harvest might not be record-breaking, but it’ll be potent, clean, and unmistakably Haze.

Common mistakes and how to fix them

• Starting in a too-small pot—use 18–27 L early to avoid root stress.
• Overwatering during stretch—let the top soil dry slightly between waterings.
• Pruning too aggressively—autos don’t recover well; stick to light defoliation.
• Using nutrient-heavy soil from the start—begin with mild feedings, increase gradually.
• Ignoring airflow—boost ventilation to prevent humidity buildup and mold.

How to fine-tune your grow for maximum results

1. Start with a 20-hour light cycle indoors—no need to switch.
2. Use a well-aerated soil or coco mix for strong root development.
3. Introduce bloom boosters in week 5 to support bud density.
4. Monitor trichome color—harvest when mostly milky for a cerebral high.
5. Flush 7–10 days before harvest for a smoother smoke.

Benefits of mastering this strain over time

• Bigger yields with each grow as you optimize environment and feeding.
• Greater confidence in handling sativa-dominant autos.
• Deeper understanding of Haze terpene expression and timing.
• More consistent potency and flavor in every harvest.
• Ability to share winning genetics with fellow growers.

Technical specifications

• Breeder / Brand: Seed Stockers
• Type: Autoflowering
• Dominance: Sativa-dominant (60%+)
• Genetics: Amnesia Haze × Auto Haze
• Life cycle: 10–11 weeks from seed to harvest
• Indoor yield: Up to 550 g/m² (1.94 oz/ft²) in hydro
• Outdoor yield: 150–350 g/plant (5.29–12.35 oz/plant) with sun exposure
• Indoor height: 80–110 cm (2.62–3.61 ft)
• Outdoor height: 100–130 cm (3.28–4.27 ft)
• Difficulty: Low – very beginner-friendly
• Structure: Vigorous growth, long internodes, strong central cola
• Climate: Thrives in temperate, Mediterranean, and continental zones
• Resistance: High resistance to mold and pests
• Training: Suitable for LST; avoid topping or FIM
• Pot size: 18–27 L final pot recommended
• Light cycle: 20/4 indoors, full sun outdoors
• THC: High (20–23%)
• CBD: Low (approx. 1%)
• Aroma: Sour, spicy, woody, with incense notes
• Effect: Stimulating, cerebral, long-lasting – ideal for daytime

How to grow Amnesia Auto successfully

Quick overview: sativa-dominant autoflower, 11-week cycle, low difficulty, ideal for indoor tents or sunny outdoor spots.

For a strong start, germinate seeds in a moist paper towel at 22–25 °C. Once the taproot appears (about 1–2 cm), transplant gently into a 3–5 L pot. If you want to boost early root development, ROOTBASTIC ATAMI helps reduce stress and speeds up establishment.

During early growth, keep humidity at 60–70% and temperature at 22–26 °C. Use a light feeding schedule—this plant grows fast but doesn’t need heavy nutrients early. Move to a final 18–27 L pot by week 3 to avoid root binding. A well-draining soil mix or coco blend works best. For sustained growth, Radical Root (Growing) supports strong root mass and prevents deficiencies.

Flowering begins automatically around week 4–5. Maintain 20 hours of light indoors. Lower humidity to 40–50% to prevent mold, especially in dense buds. Support the main cola if needed. In mid-flower, introduce bloom stimulants—Radical Flower enhances resin and density without overloading the plant.

Harvest when trichomes are mostly milky with some amber for a balanced effect. Flush 7–10 days before cutting. Dry slowly at 18–22 °C and 50–60% RH, then cure in jars for 2–4 weeks to maximize flavor and smoothness.

Frequently Asked Questions

How long does it take to grow Amnesia Auto?

From seed to harvest, Amnesia Auto takes 10–11 weeks. It flowers automatically, so no light cycle changes are needed.

Is Amnesia Auto good for beginners?

Yes, it’s very beginner-friendly—resilient, easy to grow, and forgiving of minor mistakes. Just avoid overwatering and aggressive pruning.

What kind of yield can I expect?

Indoors, up to 550 g/m² in hydroponic setups. Outdoors, 150–350 g per plant depending on sunlight and care.

Does it smell strong during flowering?

Yes, it has a pungent sour-spicy Haze aroma. Use a carbon filter indoors to control odor.

Can I grow it outdoors in colder climates?

It tolerates mild temperature drops but thrives in warm, sunny conditions. Aim for at least 5–6 hours of direct sunlight daily.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Amnesia Auto last summer in my small greenhouse, and it blew me away. I’ve tried a lot of autoflowering Hazes—most are weak or take forever—but this one hit like a truck. I used 20/4 lighting indoors for the first few weeks, then moved it outside once stable. It stretched hard, hit about 1.10 m (3.61 ft), and developed these thick, resin-coated colas by week 8. I didn’t top it—autos hate that—but I did some light LST to open up the canopy. The smell was insane: sour, spicy, with that classic Haze kick. I flushed for 10 days, dried slowly, and cured for three weeks. The high was super clear, energetic, and lasted for hours—perfect for daytime creativity. My only tip? Don’t rush it. Let it go the full 11 weeks. The extra days make a huge difference in potency and yield.