Written by Ad OpsOverview and Identity
Auto Amnesia is an autoflowering expression of the celebrated Amnesia line, engineered by GB Strains to deliver the quintessential Haze-forward experience on a compact, time-efficient timeline. Its heritage combines ruderalis, indica, and sativa, with a strong sativa backbone tempered by indica structure and the ruderalis gene that drives automatic flowering. Growers typically select Auto Amnesia for cerebral stimulation, citrus-haze aromatics, and dependable harvest windows under 12 weeks from sprout.
As an autoflower, Auto Amnesia does not rely on photoperiod changes, enabling set-and-forget schedules like 18/6 or 20/4 light cycles from seed to harvest. This trait makes it attractive for first-time growers and seasoned cultivators seeking rapid, staggered harvests. In practice, Auto Amnesia can produce robust yields indoors and outdoors, with peak results achieved through precise nutrition, stable environmental parameters, and gentle training.
The cultivar’s identity revolves around a clean, uplifting profile and resin-rich flowers that retain classic Amnesia character. Expect elongated, silver-lime colas freckled with fiery pistils and frosty trichomes. Its terpene profile skews toward lemon, incense, and spice, delivering a flavor arc that starts bright and ends with a peppery, Haze-derived finish.
History and Breeding Context
Amnesia traces back to Dutch breeding circles in the 1990s and 2000s, where Haze genetics were refined for European indoor gardens. Select phenotypes gained a reputation for citrus-incense aromatics, powerful cerebral effects, and tall vigor. Over time, breeders worked to stabilize the cultivar and introduce related lines that maintained the Amnesia personality while addressing height, flowering length, and yield.
GB Strains developed Auto Amnesia by integrating a robust ruderalis donor into their Amnesia selections to introduce photoperiod independence. This strategy preserves hallmark Haze terpenes and heady effects while compressing the growth cycle into an 8–12 week window from germination. The indica component supports denser bud formation and mitigates excessive stretch, improving canopy management in small spaces.
Within the broader market, auto variants of Amnesia have matured significantly, driven by advances in autoflower breeding. Notably, Advanced Seeds' Auto Amnesia XXL has been promoted for larger yields, while Pyramid Seeds' Auto Amnesia Gold emphasizes fast growth and sativa-forward character. These examples illustrate how the Auto Amnesia archetype has become a staple for growers seeking speed without sacrificing the Amnesia experience.
Genetic Lineage and Inheritance
Auto Amnesia’s genetic framework blends three major cannabis subspecies: sativa, indica, and ruderalis. The sativa component is responsible for the cultivar’s uplifting, energetic effect, elongated internodes, and airy, spear-shaped flowers. Indica influence contributes to tighter bud formation, improved calyx-to-leaf ratios, and a slightly more manageable plant stature.
The ruderalis input, which is central to the “auto” trait, allows flowering irrespective of day length, typically initiating between days 21 and 30 from sprout. This reduces grower overhead by removing the need to switch light schedules, a distinct advantage for small tents, multi-stage rooms, or outdoor plantings at varying latitudes. In practical terms, the ruderalis fraction is often kept modest to retain potency and terpene quality, while delivering reliable, time-bound flowering.
Although seedmakers rarely publish exact percentages, Auto Amnesia typically presents as sativa-dominant with minor indica and ruderalis contributions. Many growers report phenotypic variability within a narrow band, where some plants lean more Haze-like and others display denser, indica-leaning colas. In stable lines, the majority of phenotypes still carry citrus-incense volatility in aroma and a clear-headed, buoyant effect profile.
Morphology and Appearance
Auto Amnesia usually exhibits a medium-tall, sativa-leaning frame, averaging 70–120 cm indoors under 18/6 lighting when grown in 7–11 liter containers. Internodal spacing tends to be moderate, allowing for effective light penetration if the canopy is trained with low-stress techniques. The main stem often develops into a prominent central cola surrounded by evenly spaced satellite branches.
Bud structure is characteristically elongated, with tapered colas that can show gentle foxtailing in high-intensity environments. Calyxes stack in a spiral pattern and are coated with a dense layer of glandular trichomes that appear milky-white as harvest approaches. Pistils transition from vivid tangerine to copper-brown in late flower, providing a visual cue that complements trichome maturity checks.
Leaf morphology typically skews narrower, with serrated, lime-green leaflets that darken slightly as phosphorus demand increases in mid to late bloom. Under cool nighttime temperatures (16–18°C), some phenotypes may display faint purpling at the tips or sugar leaves due to anthocyanin expression. Overall, the cultivar maintains a balanced posture that is easier to manage than many full-size Haze photoperiods.
Aroma Profile
The aromatic signature of Auto Amnesia centers on lemon zest, sweet citrus, and classic Haze incense, often underscored by herbal spice. When the flowers are agitated, secondary notes of pine, anise, and pepper can bloom, suggesting a complex interplay of terpinolene, limonene, and beta-caryophyllene. Freshly cured jars frequently release a bright top note that settles into woody-herbal warmth.
During late flower, the aroma intensifies significantly, and carbon filtration is strongly recommended for indoor setups. In side-by-side comparisons, growers note that Auto Amnesia’s nose is cleaner and more citrus-forward than many kush or cookie lines. The overall profile tests well with enthusiasts who appreciate old-school Haze with a modern twist.
Healthy terpene expression relies on stable environmental parameters and consistent micronutrient availability, especially sulfur. Maintaining VPD within target ranges reduces stress-related terpene volatilization and supports consistent aromatic output. Proper drying at 18–20°C and 55–60% RH preserves top notes that otherwise dissipate under rapid or hot drying conditions.
Flavor Profile
Auto Amnesia delivers a layered flavor that opens with lemon-lime brightness and transitions to sweet herbal and incense tones. The finish often carries a peppery snap with traces of pine and anise, a flavor arc consistent with Haze-type terpenes. In vaporization, these notes are especially pronounced at 170–185°C, with higher temperatures introducing deeper spice and wood.
Combustion offers a fuller-bodied expression but can mute the citrus top note if the cure is rushed. A slow cure of 3–6 weeks typically heightens sweetness and rounds the pepper edge into a more cohesive finish. The mouthfeel is crisp rather than creamy, favoring fans of zesty, uplifting profiles.
Growers can further refine flavor by adjusting the final two weeks of feeding, emphasizing clean water or low-EC solutions to minimize residual mineral taste. Many report that a 7–10 day flush in coco or a gentle taper in soil improves clarity of flavor by harvest. Terpene-preserving storage—airtight containers at 16–18°C, 58–62% humidity—helps sustain the lemon-incense signature over months.
Cannabinoid Profile and Potency
Autoflowering Amnesia lines frequently test in the moderate-to-high THC range, and Auto Amnesia from GB Strains is generally reported within approximately 16–22% THC under competent cultivation. CBD is typically low (<1%), which aligns with the cultivar’s energizing and cerebral character. Minor cannabinoids such as CBG often appear in the 0.5–1.5% range, though this varies by phenotype and maturity window.
Potency is sensitive to light intensity and nutrient management. Indoor grows targeting 600–900 µmol/m²/s PPFD in bloom with a DLI of 35–45 mol/m²/day often achieve stronger cannabinoid development than underpowered setups. Conversely, excessive leaf temperature (above 29–30°C) can stress plants and degrade THC and monoterpenes, dampening perceived potency.
Independent lab data for autos in the Amnesia family commonly cluster in the 15–22% THC band, with standout phenotypes occasionally pushing higher under optimal conditions. The combination of fast lifecycle and sativa-leaning psychoactivity results in a potent yet bright effect that appeals to daytime users. As always with autos, large environmental swings can reduce potency by several percentage points compared to stable, optimized environments.
Terpene Profile and Aromachemistry
Auto Amnesia leans toward a terpinolene-driven bouquet, commonly supported by limonene, beta-caryophyllene, and myrcene, with secondary contributions from ocimene, linalool, and humulene. In total, terpene content in well-grown samples often ranges from 1.5–3.0% by dry weight, with top-tier expressions occasionally exceeding 3%. This density underpins the vivid citrus-incense character and bright headspace effects.
Terpinolene typically imparts the fresh, piney-citrus lift associated with many Haze-descended cultivars. Limonene contributes zesty lemon notes and a perceived mood-elevating quality, while beta-caryophyllene brings peppery spice and interacts with CB2 receptors. Myrcene, when present at moderate levels, rounds out the profile with herbal depth without pushing the experience into a sedative lane.
Cultivation practices strongly influence terpene outcomes. Cooler late-flower leaf temps (22–25°C canopy) and gentle handling during harvest preserve volatile monoterpenes such as limonene and ocimene. Post-harvest protocols—particularly a slow dry at 18–20°C and 55–60% RH—can retain 15–25% more monoterpene content than a rapid dry above 23°C, according to controlled dry-room comparisons by commercial operators.
Experiential Effects and Consumer Reports
Consumers commonly describe Auto Amnesia as uplifting, clear-headed, and energizing, with a quick onset that emerges within minutes of inhalation. The headspace often includes heightened sensory awareness, a buoyant mood, and a subtle, creative focus. Body effects are typically minimal to moderate, offering a functional experience suitable for daytime tasks.
Duration of effects often spans 2–3 hours for inhaled routes, with peak intensity in the first 30–60 minutes. Sensitive users may experience increased heart rate or mild anxiety if consumed at high doses, especially in stimulating environments. Many report that lower doses—one or two inhalations—maintain clarity without racing thoughts.
Compared to indica-dominant autos, Auto Amnesia’s profile is more cerebral and less sedative, aligning with its sativa heritage. Users who enjoy citrus-forward sativas, classic Hazes, or terpene profiles built on terpinolene and limonene are likely to appreciate its character. Hydration and paced dosing improve overall comfort, particularly for infrequent consumers.
Potential Therapeutic Uses and Safety Considerations
While formal clinical trials on Auto Amnesia specifically are limited, its chemical profile suggests potential for uplifting mood and combating fatigue. Moderately high THC paired with limonene and terpinolene is frequently associated anecdotally with improved motivation and creative focus. Some users also report relief from mild stress and situational low mood, consistent with citrus-forward sativa experiences.
Beta-caryophyllene’s activity at CB2 receptors may contribute to perceived anti-inflammatory effects, though this remains an area of ongoing research rather than established clinical proof. The cultivar’s clear-headed nature can be advantageous for daytime symptom management where sedation is undesirable. As always, effects vary by individual biochemistry, prior cannabis exposure, and dose.
Safety considerations include the possibility of anxiety, dry mouth, and dry eyes at higher doses, and transient increases in heart rate typical for THC-rich sativas. New or sensitive users should start low and go slow, especially in stimulating settings. Those with a history of anxiety disorders or cardiovascular concerns should consult a qualified healthcare professional before use.
Comprehensive Cultivation Guide: Indoors and Outdoors
Auto Amnesia is accessible for beginners yet rewarding for experts who dial in environment and nutrition. The total lifecycle usually completes in 70–95 days from sprout, with many phenotypes finishing around days 80–85. Germination rates from reputable seed stock often exceed 90–95% when using standard techniques like moist paper towels or presoaked plugs at 24–26°C.
Lighting should remain consistent from seed to harvest. Common schedules include 18/6 or 20/4, with 20/4 providing marginally faster metabolism at the cost of higher energy use. Target PPFD at 250–400 µmol/m²/s for seedlings, 450–650 µmol/m²/s during early growth, and 700–900 µmol/m²/s in peak flower, translating to a DLI in bloom of roughly 35–45 mol/m²/day.
Environmental parameters matter tremendously with autos because recovery windows are short. Aim for 24–28°C during lights on and 20–22°C lights off in veg/early bloom, easing to 22–26°C late flower to protect terpenes. Relative humidity should progress from 65–70% in early seedling, 55–60% in early veg, 45–50% in mid bloom, and 40–45% late bloom; maintain adequate airflow to keep VPD in the target range.
Substrate options include quality soil, coco, or hydro. In soil, a lightly amended medium with 20–30% perlite supports oxygenation; in coco, maintain frequent fertigation at 5–15% runoff to prevent salt buildup. Hydroponic methods can accelerate growth but require tight control of EC, pH, and water temperature (18–21°C) to avoid root stress.
Nutrient management should be steady but not aggressive. In coco or hydro, maintain EC around 0.8–1.2 mS/cm in early growth, 1.4–1.8 mS/cm mid bloom, and 1.0–1.4 mS/cm late bloom; in soil, feed intensity can be 15–25% lower. Keep pH at 5.8–6.2 for coco/hydro and 6.2–6.8 for soil to support balanced nutrient uptake.
Calcium and magnesium supplementation is often beneficial, particularly under high-intensity LEDs that can increase Ca/Mg demand. Many growers provide 100–150 ppm Ca and 40–60 ppm Mg during peak growth. A gentle increase in phosphorus and potassium during weeks 4–8 (from sprout) supports floral development without risking overfertilization.
Training should be conservative due to the compressed timeline. Low-stress training (LST) from days 10–25 helps open the canopy and even out bud sites; avoid heavy topping after day 18–20 to prevent stunting. A light defoliation to remove tucked fan leaves around day 30–40 can improve airflow and light distribution without halting growth.
Irrigation frequency depends on medium and container size. In 7–11 liter fabric pots with coco, daily feeds are common by week three, moving to two smaller feeds per day in heavy transpiration phases. In soil, water thoroughly to 10–20% runoff when the pot feels light, allowing mild drybacks that encourage root exploration without stress.
Indoor yields of 400–550 g/m² are achievable with dialed-in conditions, canopy control, and high-efficiency LEDs (2.3–2.8+ µmol/J). Single-plant yields of 60–150 g are typical in 7–11 liter pots; aggressive dial-in can push well beyond 150 g on standout phenotypes. Outdoors, well-managed plants can deliver 60–200 g per plant depending on sun hours, soil fertility, and pest pressure.
Outdoor cultivation favors late spring to mid-summer starts in temperate regions. Auto Amnesia’s ruderalis trait allows multiple cycles per season at latitudes 35–55°, with 10–12 weeks per run. Choose sites with 6–8+ direct sun hours, wind protection, and good soil drainage to limit disease pressure.
Integrated pest management (IPM) should be proactive. Sticky cards, periodic leaf inspections, and beneficial insects (e.g., Phytoseiulus persimilis for spider mites) reduce outbreak risks. In outdoor settings, Bacillus thuringiensis var. kurstaki (Bt-k) can mitigate caterpillars, while silica and potassium bicarbonate sprays help resist powdery mildew when applied preventively.
Airflow is critical indoors. Size extraction to achieve 20–40 air exchanges per hour in small tents and maintain 0.3–0.6 m/s gentle leaf-surface airflow to prevent microclimates. Use oscillating fans to eliminate dead zones, and ensure intake air is filtered to avoid bringing in pests and dust.
As flowering progresses, monitor trichomes with a 60–100x loupe. Many growers target a harvest window at 5–15% amber, 70–85% cloudy, and the rest clear for a bright, energetic effect. Letting amber exceed 20–25% generally shifts the experience toward heavier, more sedative notes, which some users might not prefer for a sativa-leaning auto.
Harvest, Drying, and Curing
Harvest timing impacts both potency and terpene retention. Auto Amnesia frequently reaches peak cannabinoid expression around days 75–90 from sprout, though earlier or later phenotypes can occur. Always prioritize trichome maturity and pistil coloration over calendar days for accuracy.
Before harvest, many cultivators reduce EC during the final 7–10 days, tapering nitrogen while maintaining adequate potassium to avoid a flat finish. Some switch to plain, pH-balanced water in coco/hydro to minimize residual salts; in soil, a gradual taper is often sufficient. The goal is clean-burning flowers that show white ash and pure flavor after cure.
Dry the crop in a dark space at 18–20°C and 55–60% RH with mild air movement for 8–14 days. Faster dries above 23°C or with high airflow can strip monoterpenes and create harshness, reducing flavor intensity by a noticeable margin. Aim for stems that snap and flowers that feel slightly springy before jarring.
Cure in airtight containers, filling to 60–70% capacity to allow airspace for burping. For the first 10–14 days, open jars daily for 5–10 minutes to vent moisture, keeping internal RH between 58–62% using hygrometers. Extended cures of 3–6 weeks continue to refine flavor, with many reporting that citrus-brightness and incense complexity improve measurably over time.
Yields, Timelines, and Performance Benchmarks
Under efficient LED lighting and stable environmental control, indoor yields of 400–550 g/m² are realistic benchmarks for Auto Amnesia. Exceptional growers with optimized VPD, targeted PPFD, and high-oxygen root zones sometimes surpass 600 g/m². Single plants commonly produce 60–150 g in 7–11 liter containers, with 100–180 g achievable under high-intensity, well-trained canopies.
The lifecycle typically completes in 70–95 days from sprout, with first pistils appearing around days 18–25. Bulk accumulation often accelerates in weeks 6–10, translating to the bulk of dry weight gain happening in the final 3–4 weeks. Growers who maintain canopy uniformity and avoid stress during this late stage tend to realize 10–20% higher yields compared to those with uneven canopies.
Quality metrics extend beyond yield. Well-grown flowers often test at 16–22% THC, 1.5–3.0% total terpenes, and retain a moisture content of 10–12% after cure. Trimming quality, bud density, and the preservation of volatile terpenes (especially limonene and terpinolene) make significant differences in perceived value and consumer satisfaction.
Position in the Market and Notable Relatives
Auto Amnesia occupies a prominent place among autoflower sativas because it balances speed, potency, and the beloved Haze flavor signature. GB Strains’ version adheres to the core traits that made Amnesia famous while smoothing the path for beginners through automatic flowering and manageable structure. This positions it as a reliable choice for growers who want classic sativa character within a compact timeline.
In the broader landscape, different breeders tune the formula for specific outcomes. Advanced Seeds’ Auto Amnesia XXL is marketed for large yields, reflecting a push toward heavier production without losing the Amnesia appeal. Pyramid Seeds’ Auto Amnesia Gold emphasizes rapid growth and sativa brightness, demonstrating how phenotype selection can steer expression within the same thematic lineage.
These related offerings help triangulate expectations for Auto Amnesia in general: fast, bright, and productive, with citrus-incense aroma and uplifting effects. The presence of multiple reputable versions in the market provides growers with choice while underscoring the stability and popularity of the Amnesia auto archetype. For consumers, the common denominator remains an energetic, flavorful experience anchored by classic Haze terpenes.
