Written by Ad OpsHistory and Breeding Origins
Amnesia OG Auto is a contemporary autoflowering hybrid developed by Copenhagen Seed Company, a breeder recognized for Northern European selections that thrive in cool, temperate climates. The cultivar merges ruderalis, indica, and sativa heritage, delivering day-neutral flowering in a compact, high-resin package. It draws inspiration from the classic Amnesia and OG Kush families, two pillars of modern cannabis with global name recognition. The goal was to capture Amnesia’s cerebral uplift and OG’s dense, gassy potency in an autoflower format suitable for fast, reliable harvests.
Autoflower cannabis has advanced substantially over the past decade, with modern autos rivaling photoperiods in potency and bag appeal. As a benchmark, third-party market data show that premium autos such as Amnesia Haze Auto regularly test above 20% THC with low CBD (0–1%), a standard Amnesia OG Auto aims to meet or exceed. Leafly characterizes the broader Amnesia lineage as uplifting, creative, and euphoric, aligning with the sativa-leaning psychoactive targets of this cultivar. Meanwhile, OG lines are known for their body-forward power, providing a complementary base of physical relaxation.
Breeding a stable autoflower requires multiple generations of selection to fix the day-neutral trait from ruderalis while preserving cannabinoid and terpene expression. Copenhagen Seed Company reportedly selected for rapid seed-to-harvest times, improved calyx-to-leaf ratios, and consistent trichome saturation across phenotypes. In practical terms, this means most plants finish within 10 to 12 weeks from sprout under optimal conditions, an efficiency important for short-season regions. The result is a cultivar engineered for throughput without sacrificing quality.
Historically, Amnesia cultivars gained traction in the 2000s across European coffee shops for their energetic, long-lasting highs. At the same time, OG Kush cemented itself in North America as a potency standard featuring a limonene–caryophyllene–myrcene triad and a fuel-forward bouquet. Amnesia OG Auto brings these legacies together, adapted to an autoflower format that lowers the barrier to entry for growers. It thus captures the essence of two icons while reflecting the latest generation of auto breeding know-how.
Genetic Lineage and Architecture
The genetic backbone of Amnesia OG Auto is tri-hybrid: ruderalis for autoflowering, sativa for cerebral drive, and indica for density and resin production. While breeders often use Amnesia Haze-leaning mothers to preserve the citrus-spice headspace, OG-leaning fathers anchor the structure and add fuel notes. A dedicated ruderalis donor stabilizes day-neutral flowering, allowing the plant to bloom by age rather than photoperiod. This architecture produces a versatile plant that can be run under long light schedules without reversion.
From a horticultural perspective, the cultivar exhibits moderate internodal spacing and a branching pattern that responds well to low-stress training. The sativa influence fosters a taller central cola when untrained, while the indica component thickens lateral branches and contributes to bud hardness. Growers can expect a calyx-to-leaf ratio in the favorable range, helping speed up trimming and improving airflow around developing colas. This combination of traits also permits dense planting for higher grams per square meter.
Phenotypically, expect two common expressions: a citrus-forward, terpinolene-leaning pheno reminiscent of classic Amnesia, and a heavier limonene–caryophyllene phenotype with a deeper fuel and kush backbone. Both tend to retain modest height compared to photoperiod haze crosses, a hallmark of modern autos. Measured canopy heights indoors typically land between 60 and 100 cm without aggressive training. Outdoors, plants often reach 80 to 120 cm depending on latitude and season length.
The architecture is optimized for fast cycles, with root vigor peaking between weeks 2 and 4 as pre-flowers emerge. By week 5, the plant is in full flower, stacking bracts and ramping terpene biosynthesis. In the final two weeks, bracts swell as resin heads mature from clear to cloudy, with amber trichomes signaling peak body effect. This predictable curve supports staggered planting for perpetual harvests in small spaces.
Appearance and Morphology
Amnesia OG Auto forms compact, spear-shaped colas with a crystalline sheen, particularly pronounced on the upper third of the plant. Buds are typically lime to forest green, accented by burnt-orange to copper pistils that darken toward maturity. The trichome density is high, producing a frosted look that persists even after trimming and cure. Under strong LED lighting, the resin heads can appear almost pearlescent.
Leaf morphology bridges sativa and indica cues: medium-width blades with a slight serration and a moderate petiole length. Internodes usually hold at a short-to-medium distance, allowing a solid stack without excessive stretch. The cultivar’s nitrogen appetite is moderate, and leaves retain a healthy emerald tone when balanced feeding is maintained. Late in flower, subtle purple flecking can appear in cooler temperatures without affecting potency.
Growers often note a favorable bract-to-sugar-leaf ratio, making dry trims straightforward and preserving bag appeal. The buds cure into dense, weighty nuggets that resist crumbling, indicating well-formed cell walls and adequate resin saturation. A well-grown plant will display sparkling trichome coverage down the sugar leaves, a visual indicator of high-quality resin. This morphology mirrors descriptions of top-tier autoflowers in 2023–2024 seed catalogs, where “hard, compact buds that shimmer with a thick trichome crust” are highlighted.
Aroma Profile
The aroma profile balances classic Amnesia citrus and spice with the deeper earth, pine, and fuel of OG lineage. On the stem rub, bright lemon zest and sweet orange peel mingle with cracked pepper and a faint herbal coolness. As flowers mature, the base notes deepen into damp forest loam and diesel, with a touch of incense. The cumulative effect is both invigorating and grounding.
Cured buds open with a top note of limonene-driven citrus followed by terpinolene’s herbal-lilac lift. Mid-spectrum tones of caryophyllene add black pepper and warm spice, while myrcene contributes a soft, resinous musk. A light touch of pinene is often present, perceived as fresh pine or rosemary. Collectively, the bouquet is complex without being overwhelming.
Users familiar with Amnesia Haze will recognize the citrus-spice lineage described by multiple seedbanks as spicy-sweet and far-reaching in its high. OG-influenced phenotypes layer on a more pronounced gas and earthy kush component. The terpene intensity typically measures 1.5% to 3.0% by dry weight when grown under optimal conditions, consistent with modern premium autos. Proper curing heightens the zest while smoothing the fuel edge into a pleasant depth.
Flavor Profile
On the palate, Amnesia OG Auto delivers a clean, lemon-forward front end that moves into sweet citrus candy and herbal spice. The mid-palate introduces OG’s earthy-pine and a gentle diesel twang, providing satisfying weight under the bright top notes. Exhales are smooth and slightly creamy when cured properly, finishing with pepper and a whisper of anise. The interplay makes for a layered experience across joints, vaporizers, and glass.
Dry herb vaporizers accentuate the citrus and floral terpenes at lower temperatures, particularly between 170 and 185 C. As temperature increases, peppery caryophyllene and heavier fuel tones come forward, adding gravitas to the flavor. Water filtration tends to soften the sharper herbal edges while preserving lemon-pine clarity. These characteristics align with reports that Amnesia-based autos maintain a very smooth and enjoyable smoke.
Flavor persistence is good, with detectable citrus and spice lingering 10 to 20 minutes post-session in many users. Relative humidity during cure strongly influences expression; maintaining 58–62% RH generally preserves limonene brightness. Over-drying below 55% RH dulls citrus and amplifies harshness, reducing perceived quality. With a four- to six-week cure, the profile rounds out and integrates, enhancing both aroma and taste.
Cannabinoid Profile and Potency
As a modern auto built from high-octane parents, Amnesia OG Auto is typically high in THC with low CBD. Based on market comparables like Amnesia Haze Autoflower, many phenotypes trend above 20% THC, with CBD generally in the 0–1% range. Some top-performing autos in the broader market have reached reported THC levels in the mid-20s, demonstrating the ceiling for contemporary genetics. While individual test results vary, a realistic target window is 18–23% THC for most home grows.
Minor cannabinoids may include trace CBC and CBG, commonly measured in the 0.1–0.8% total range combined. Environmental factors, harvest timing, and curing practices can shift these totals by several percentage points. Earlier harvests with mostly cloudy trichomes often lean slightly more toward the heady, THC-forward effect. Later harvests with 10–20% amber can tilt the experience toward body relaxation.
Potency expression benefits from high light intensity and stable root-zone conditions. In controlled rooms with 600–900 µmol m–2 s–1 PPFD and balanced feeding, dense resin production is typical by week 7. Supplemental CO2 at 800–1200 ppm under high PPFD can increase biomass and potentially elevate cannabinoid totals by 5–15% in optimized environments. These gains rely on precise environmental control and may not be practical for all growers.
CBD-dominant phenotypes are rare in this cultivar due to its Amnesia and OG heritage. For users seeking lower intoxication, microdosing or blending with CBD flower or extracts can modulate intensity. Some growers also experiment with slightly earlier harvests to emphasize a lighter, more cerebral tone. Nonetheless, the cultivar’s design intent is clear: robust THC-forward performance aligned with classic Amnesia euphoria.
Terpene Profile
Amnesia OG Auto commonly expresses a limonene, caryophyllene, and myrcene triad, with terpinolene or pinene emerging in certain phenotypes. Limonene brings bright lemon and orange peel aromatics, often testing as the dominant terpene. Caryophyllene contributes spice and interacts with CB2 receptors, a unique property among major terpenes. Myrcene adds resinous depth, sometimes perceived as musky mango or herbal wood.
Terpinolene is a hallmark of many Amnesia and Haze lines, imparting a green, herbal-floral lift and a perception of mental clarity. Pinene underlines conifer and rosemary notes and is associated in literature with alertness and bronchodilation. Typical total terpene content for well-grown autos ranges from 1.5% to 3.0% by dry weight, with elite examples exceeding 3%. Environmental stress or poor drying can halve these totals, underscoring the importance of gentle post-harvest handling.
From a sensory chemistry standpoint, limonene volatility means aroma can flash off quickly if buds are overdried or exposed to warm airflows. Maintaining 60–62% cure RH and minimal jar headspace preserves top notes. Caryophyllene is more resilient and provides an anchor through the cure, keeping the bouquet intact. These dynamics explain why a careful cure materially improves perceived quality even when cannabinoids remain constant.
A terpene-driven comparison helps frame expectations: Amnesia Haze is often citrus-earth with energizing effects, while OG Kush leans citrus-pine-fuel with grounding body weight. Amnesia OG Auto sits between these poles, typically bright upfront with a satisfying kush finish. This alignment mirrors seedbank descriptors that cite spicy-sweet haze notes combined with indica potency. The resulting spectrum is both sessionable and robust.
Experiential Effects
Expect an onset within minutes, beginning with an uplift in mood, a sense of lightness behind the eyes, and sharpened sensory detail. Leafly characterizes the Amnesia family as uplifting, creative, and euphoric, qualities that remain evident in this auto expression. As the session progresses, a warm, steady body buzz from the OG side rounds the edges without imposing couchlock at moderate doses. The composite experience is functional yet substantial.
Many users report a productivity window of 60–120 minutes, especially with vaporized doses, aligning with commentary that Amnesia lines can support focus for less cerebrally demanding tasks. Creative work, light chores, or outdoor walks pair well with this rhythm. Music, food, and color saturation often feel more vivid without losing clarity. At higher doses, introspection and time dilation can emerge, reflecting its haze lineage.
Physiologically, the cultivar tends to elevate heart rate slightly and can dry the mouth and eyes, classic signs of THC-forward cannabis. Anxiety-prone users should start low and increase slowly, as the bright, fast onset can be stimulating. Balanced hydration and a snack can smooth the ride, particularly if consumed on an empty stomach. The body component expands over the second hour, easing muscular tension and stress.
Duration typically spans 2.5 to 4 hours, depending on dose and consumption method. Vaporization offers a cleaner headspace with quicker tapering, while combustion can feel heavier toward the end. Edibles made from this cultivar skew stronger and more sedative due to 11-hydroxy-THC metabolism, so careful titration is advised. Overall, the effects profile is versatile and reliable, echoing the Amnesia uplift with OG steadiness.
Potential Medical Uses
Given the uplifting, euphoric character associated with Amnesia lineage, this cultivar may be relevant for mood-related concerns. User reports and aggregate strain data often cite amelioration of stress and low mood, consistent with the energizing nature of limonene-rich chemotypes. While clinical evidence is still developing, observational data suggest some individuals experience improved motivation and hedonic tone. As always, medical use should be guided by clinician input and local regulations.
Caryophyllene’s CB2 activity and the anti-inflammatory signaling associated with this pathway suggest potential value for mild inflammatory discomfort. The OG-influenced body component may ease minor aches, muscle tightness, and tension headaches in some users. Vaporized administration enables rapid titration for breakthrough symptoms. For persistent pain, synergizing with CBD or CBG extracts may broaden relief while tempering intoxication.
For fatigue and brain fog, the cultivar’s bright, energizing top likely supports daytime usage in low to moderate doses. Some users report enhanced focus for routine tasks, aligning with commentary that Amnesia types can aid productivity. However, individuals sensitive to stimulatory cannabis may experience anxiety at higher doses. Careful dose-finding is crucial to balance activation with calm.
Appetite stimulation and nausea reduction are also commonly observed with THC-dominant strains, which may benefit patients struggling with appetite loss. Sleep support is more variable; small doses earlier in the evening can relax the body, but late-night heavy use may be mentally engaging. Patients with panic disorders or psychosis histories should approach THC-rich cultivars cautiously. Evidence-based practice suggests starting low, going slow, and prioritizing consistency over magnitude.
Comprehensive Cultivation Guide
Lifecycle and timeline. Amnesia OG Auto typically completes seed to harvest in 10–12 weeks, with visible pre-flowers by day 18–25 under 18–20 hours of light. The stretch phase peaks around weeks 3–4, transitioning rapidly to flower set by week 5. Most phenotypes reach peak resin between weeks 8–10, with a 7–14 day harvest window depending on desired effect. Clear-to-cloudy trichomes favor a brighter headspace; 10–20% amber increases body weight.
Lighting strategy. Autos perform best under long days; 18/6 or 20/4 light/dark is standard throughout. Target PPFD of 400–600 µmol m–2 s–1 early, rising to 600–900 in mid-to-late flower. The optimal daily light integral is 30–45 mol m–2 day–1 for quality and yield without overdriving the plant. Maintain consistent photoperiods to avoid stress, as autos cannot be veg-extended with darkness.
Environmental parameters. Daytime temperature of 24–28 C and nighttime of 18–22 C promote robust metabolism. Keep leaf VPD around 0.9–1.3 kPa during late veg and early flower for efficient gas exchange. Relative humidity should sit 60–65% in veg, tapering to 45–55% in late flower to mitigate botrytis risk. Gentle airflow prevents microclimates and strengthens stems without desiccating trichomes.
Medium and containers. Light, aerated substrates such as 70/30 coco–perlite or enriched soilless mixes excel for autos due to fast root turnover. Containers of 8–15 liters give ample volume without encouraging excessive height, though 5–7 liters can work for high-density SOG. Fabric pots improve oxygenation and reduce overwatering risk. Pre-charge media with mild nutrients to sustain early growth without forcing.
Nutrition and EC. Autos prefer moderate feeding: EC 1.2–1.5 mS cm–1 in early growth, 1.6–1.8 in mid flower, then taper toward 1.2 in the final two weeks. In soil, aim for pH 6.2–6.8; in hydro or coco, pH 5.7–6.1. A balanced NPK is effective: 3-1-2 in early growth, shifting to 1-2-2 or 1-3-2 in bloom with adequate calcium and magnesium. Overfeeding nitrogen past week 5 can suppress terpene output and delay ripening.
Irrigation rhythm. Allow a wet-to-dry cycle that prevents root hypoxia while avoiding drought stress. In coco, smaller, more frequent feedings stabilize EC and pH; in soil, water to 10–15% runoff and let the top few centimeters dry before rewatering. Maintain solution temperatures at 18–22 C for root health. Consider beneficial microbes or enzymes to support nutrient cycling and root resilience.
Training techniques. Favor low-stress training to widen the canopy and even cola development without halting growth. Gentle tie-downs from day 15–28 help maintain a level canopy under fixed-height lights. Many growers avoid topping autos to prevent stall, but a single early top at node 3–4 can succeed with vigorous phenotypes. Light defoliation around weeks 4–6 improves airflow; heavy stripping is discouraged.
Pest and pathogen management. Preventive IPM is key: maintain cleanliness, quarantine new clones or plants, and employ yellow sticky cards to monitor fungus gnats and whiteflies. Neem alternatives like azadirachtin-free botanical oils or Beauveria-based biocontrols can be used in early veg, stopping sprays once buds form. Maintain RH and airflow to deter powdery mildew and botrytis. A weekly inspection routine can reduce losses by catching issues early.
Yield expectations. Indoors, skilled growers often harvest 350–500 g m–2 under efficient LEDs, with elite runs exceeding 550 g m–2. Single plants in 8–12 L pots typically yield 50–120 g, depending on training and light intensity. Outdoors, expect 60–150 g per plant in temperate climates with two to three successive runs per season. These figures align with market norms for vigorous premium autos.
Outdoor strategy. In higher latitudes, start seeds indoors for 10–14 days to ensure robust transplants. Choose the sunniest site available and avoid cold soils below 12 C to prevent slow starts. Successive sowings every 3–4 weeks from late spring through midsummer can stack multiple harvests. Protect from heavy rain late in flower to avoid mold, using temporary covers if needed.
CO2 and advanced optimization. Supplemental CO2 to 800–1000 ppm improves growth when PPFD exceeds 700 µmol m–2 s–1 and nutrients are non-limiting. Expect potential biomass increases of 10–20% with fine-tuned environmental control. Introduce CO2 only in sealed rooms with adequate safety and monitoring. Otherwise, prioritize airflow, canopy management, and uniform light distribution for best returns.
Harvest cues. Visual indicators include receding pistils, swollen bracts, and trichomes turning predominantly cloudy with desired amber percentage. For an Amnesia-leaning headspace, harvest around 5% amber; for more OG body, aim for 10–20% amber. Aroma intensity often peaks in this window as monoterpenes stabilize. Avoid pushing far past 25% amber to prevent a sleepy profile and terpene loss.
Drying and curing. Dry in 60–62% RH at 17–20 C with gentle airflow for 10–14 days until small stems snap. Jar at 62% RH, burping daily for a week, then weekly for the next 3–4 weeks. Target a final moisture content of 11–13% for combustion and vaporizer performance. Proper post-harvest handling preserves limonene brightness and keeps the kush finish plush.
Common pitfalls. Overfeeding nitrogen past early flower leads to dark, waxy leaves and muted terpenes. Overwatering in large containers slows growth during the critical stretch window. Excessive defoliation can stall autos, which lack the time buffer of photoperiods to recover. Keep interventions measured and focused on maximizing light capture and airflow rather than extreme pruning.
Comparative Context and Market Position
Amnesia OG Auto sits at the intersection of two celebrated families: the uplifting Amnesia spectrum and the powerfully grounding OG spectrum. Market references indicate Amnesia Haze autos routinely clock very high THC over 20% with low CBD, which frames expectations for this cultivar’s potency. The flavor and effects matrix echoes seedbank notes describing spicy-sweet haze with an enjoyable, far-reaching cerebral high. OG elements ensure the finish has weight and satisfying depth.
In the broader autoflower landscape, potency ceilings continue to rise. Dutch Passion has reported certain autos testing as high as 26% THC, highlighting what optimized genetics and controlled environments can achieve. While not every phenotype will reach the mid-20s, it demonstrates that autos no longer inherently lag behind photoperiods. For growers, the takeaway is that environment and harvest discipline matter as much as genetics.
Productivity claims about Amnesia-type strains align with user reports that they can support focus on routine tasks. Compared to indica-heavy autos designed for nighttime, Amnesia OG Auto offers a brighter, more daytime-friendly profile at modest doses. Its combination of citrus-spice uplift and kush grounding positions it as a versatile daily driver. This balance supports both recreational enjoyment and functional use, depending on titration.
