Written by Ad OpsOrigins and Breeding History
Amnesia XXL Auto from Optimus Seeds sits at the intersection of classic European Haze breeding and modern autoflowering selection. The Amnesia family rose to prominence in the early 2000s for its energetic sativa effects and citrus-forward terpene profile, and breeders later miniaturized those traits into ruderalis-driven autos. Optimus Seeds built on that momentum, working toward a fast, high-yielding version that preserved the stimulating personality of Amnesia while finishing in a practical, indoor-friendly window.
The XXL designation reflects a selection focus on heavy production rather than simply speed. In autos, pushing yield without sacrificing resin or flavor demands careful parental choice and repeated filial selection cycles. Over multiple generations, breeders stabilize internode spacing, flowering onset timing, and bud density while maintaining the characteristic Haze-like terpinolene and limonene bouquet.
Heritage notes often credit Dinafem’s Amnesia XXL Auto as a foundational benchmark that many modern houses referenced when carving their own lines. Cross-referenced industry genealogies list entries such as Amnesia XXL Auto from Dinafem being combined with unknown Original Strains material, or Original Amnesia x unknown CBD donors used to produce Amnesia CBD. This landscape shows how Amnesia XXL germplasm has been widely used as a parent or comparator, underscoring its influence across contemporary catalogs.
Optimus Seeds’ version embraces a ruderalis / indica / sativa heritage, which is typical for autos that balance vigor, resilience, and classic Haze expressions. Ruderalis genes contribute autoflowering and hardiness, an indica fraction often densifies flowers and shortens internodes, and the sativa portion carries the citrus, spice, and cerebral lift. By blending these components, the breeder targets reliability under diverse settings without diluting the Amnesia identity.
As with many autoflower projects, the program likely prioritized traits that are essential in constrained timelines. These include rapid root establishment, early side-branch initiation, and uniform flower set by the fourth to fifth week from germination. Selections favor plants that tolerate high light intensity and recover quickly from minimal training, improving consistency for both hobbyists and commercial rooms.
Market adoption has been helped by the cultivar’s predictable seed-to-harvest rhythm. Growers value autos that finish within 75 to 90 days while delivering respectable potency and yield density. In this niche, Amnesia XXL Auto stands out for pairing recognizable Haze-like aromas with practical, repeatable cultivation schedules.
Across Europe and North America, demand for compact, energetic sativa profiles has remained steady. The rise of micro-grows and tent cultivation amplified interest in cultivars that avoid excessive stretch yet keep a bright, uplifting effect profile. Amnesia XXL Auto fits that brief, offering a controlled structure without sacrificing its classic, zesty charisma.
Genetic Lineage and Heritage
The declared heritage of Amnesia XXL Auto from Optimus Seeds is ruderalis / indica / sativa. That tripartite composition underscores a breeding goal of marrying auto-timing with robust structure and a high-energy terpene signature. The ruderalis fraction is the switch that decouples flowering from photoperiod, allowing 18 or 20 hours of light daily throughout growth.
Indica influences help stack buds more densely than a pure sativa, improving grams-per-square-meter and tightening harvest windows. This component can also contribute to thicker calyces and sturdier stalks that handle heavy colas without extensive trellising. Meanwhile, the sativa lineage carries the citrus, pine, and herbal top notes and the alert, buoyant headspace associated with Amnesia lines.
Industry genealogy snapshots add texture to the broader family tree. Listings note that Amnesia XXL Auto from Dinafem has been used in crosses with unknown Original Strains material, and that Original Amnesia combined with unknown CBD donors ultimately yielded Amnesia CBD lines. While those specific crosses are distinct from Optimus Seeds’ selection, they illustrate how Amnesia germplasm has been repeatedly recycled due to its aromatic reliability and strong market identity.
Within the Amnesia umbrella, terpinolene and limonene dominance are common threads, frequently accompanied by beta-caryophyllene, ocimene, and humulene. Selecting for these terpenes alongside auto traits requires patience because terpene output can vary widely in early-lifecycle plants. Recurrent selection, often over F4 to F6 generations or more, is a typical path to stabilize the desired combination of aroma, structure, and flowering timing.
Autoflower projects also grapple with vigor tradeoffs. Introducing ruderalis may initially dilute potency or terpene intensity, but rigorous backcrossing and phenotype culling can recover target chemotypes. Over time, breeders narrow the variance in height and internode spacing, easing canopy management for growers who run multiple plants per square meter.
The XXL tag hints at a focus on yield-forward phenotypes within the Amnesia auto landscape. Typically this means individuals with improved lateral branching, robust apical dominance, and flower clusters that bulk evenly from the mid-canopy upward. When paired with a sativa-skewed terpene profile, the result is a cultivar that feels energetic while still rewarding in the trim bin.
In practical terms, growers can expect a phenotype spread that leans sativa in aroma and effect while showing hybrid-like structural predictability. Compared to narrow-leaf photoperiod Amnesias, the auto format moderates overall height and compresses the pathway to harvest. Those combined traits explain the cultivar’s popularity among newer growers and experienced hands aiming for frequent, rapid cycles.
Appearance and Plant Structure
Amnesia XXL Auto generally presents as a medium-tall auto with a strong main cola and productive side branches. Indoor plants frequently settle in the 70 to 120 cm range under 18 or 20 hours of light, depending on pot size and light intensity. Outdoors, with full sun and generous root volume, individuals can push past 140 cm while keeping a tidy, columnar shape.
Internode spacing tends to be moderate, not as tight as an indica-heavy auto but more compact than a classic Haze. Lateral branches form early and catch up with the main stem, creating multiple secondary spearheads by mid-flower. This translates into a canopy that benefits from gentle low-stress training to spread colas without inducing stall.
Flower sites pack into elongated buds with a high ratio of calyx to leaf, which eases trimming. The XXL selection commonly carries denser flowers than older Amnesia autos, with foxtails limited to heat or high-PPFD stress. Pistils begin a bright, electric white, turning amber and rust as they mature and recede into swollen calyces.
Resin coverage is notable, with a sugary frost that builds quickly from week five onward. Trichome heads are often large and milky under a loupe at peak ripeness, reflecting a potent THCA load typical of Amnesia-derived lines. The resin exudes strong citrus and herbal aromas that intensify during the last two weeks of flower.
Leaves exhibit a hybrid morphology, showing slightly narrower blades than a pure indica but broader than a true narrow-leaf sativa. The leaf posture remains perky under good VPD, and minor clawing can indicate excess nitrogen rather than genetic trait. Coloration ranges from bright green to a deeper forest tone, with occasional anthocyanin expression in cool nights.
Overall, the plant communicates vigor and symmetry early in life. By day 21 to 28 from sprout, the architecture is usually set, with the plant committing to its final branching pattern. This predictability is a hallmark of strong auto breeding and makes canopy planning straightforward.
Growers should note that XXL phenotypes can put significant weight on upper branches late in flower. A light scrog net or a few soft ties can prevent lean without compressing colas. This preparation reduces the risk of micro-tears and calyx bruising during the final swell.
Aroma Profile
The aromatic signature of Amnesia XXL Auto leans bright, zesty, and herbal, with clear citrus top notes. Many growers describe lemon zest and sweet orange peel wrapped around juniper, pine, and a light eucalyptus thread. As the flowers cure, a deeper basil and pepper undercurrent appears, suggesting a caryophyllene and humulene base.
Freshly rubbed sugar leaves are immediately fragrant, often filling small rooms even in mid-flower. On a grind, volatile terpenes erupt, moving from sweet citrus to a slightly bitter grapefruit pith that signals mature resin. Late-flower bouquets develop a faint floral lift that can read as lilac or lavender in cooler rooms.
Terpinolene-heavy cultivars commonly project a crisp, effusive top note, and this fits well with the Amnesia family. Limonene adds a candy-like brightness that makes the aroma feel lively and clean rather than dank. Beta-caryophyllene contributes a black pepper pop that sharpens the finish and balances sweetness.
Temperature and humidity control strongly influence aroma expression. Keeping late-flower temperatures around 24 to 26 Celsius with nighttime dips of 3 to 5 degrees helps retain monoterpenes. Aggressive heat or over-drying can volatilize limonene and terpinolene quickly, flattening the profile.
During cure, the bouquet rounds and layers. At 62 percent RH, citrus oils integrate with herbal elements, producing a lemon-balm and pine overtone that many associate with classic Amnesia jars. After three to six weeks, the peppery spine becomes more defined, enhancing the nose-to-palate continuity.
Consumers often remark that the aroma telegraphs the effect profile. The clean, lemon-forward nose hints at an alert, daytime-friendly cultivar rather than a sedative, musky type. This alignment is part of the strain’s appeal among sativa fans who value aromatics as a functional guide.
Storage conditions determine how long the bouquet remains vivid. Glass jars with minimal headspace and cool, dark environments help preserve lighter fractions that drive the citrus snap. Properly handled, the nose stays robust for several months before gradually softening.
Flavor Profile
On the palate, Amnesia XXL Auto opens with lemon-lime spritz and sweet orange, often compared to a citrus sorbet. The first draw is bright, with a cooling pine-herbal streak that cleans the finish. Exhalation carries a subtle pepper and basil note that lingers without harshness.
In vaporization, flavors skew even cleaner and more layered. At lower temperatures around 175 to 185 Celsius, limonene and terpinolene shine, offering a sweet lemon candy and green apple sparkle. Increasing temperature to 195 to 205 Celsius pulls in caryophyllene and humulene, deepening spice and wood accents.
Combustion can mute the most delicate top notes, particularly if the flower is overdried below 55 percent RH. Even so, the profile maintains its citrus core, with grapefruit pith and pine needles appearing mid-session. The aftertaste is crisp, leaving a mouthfeel akin to a light herbal tea.
Curing profoundly shapes flavor cohesion. A slow dry of 10 to 14 days at roughly 60 Fahrenheit and 60 percent RH, followed by a month-long cure at 58 to 62 percent RH, preserves volatile monoterpenes. This regimen commonly yields a more nuanced citrus-herb harmony and reduces any bitter edges.
Water quality influences perceived flavor, especially in hydro and coco. Elevated chloride and sodium can produce a flat, dull taste that masks citrus brightness. Many growers report cleaner flavor when using reverse osmosis water reconstituted with calcium and magnesium to 60 to 120 ppm as CaCO3 hardness.
Terpene preservation improves when harvest occurs before excessive ambering and oxidation. Pulling at mostly cloudy trichomes with 5 to 10 percent amber typically balances potency with terp retention. Extended late harvest windows may tilt the profile toward earthy and woody notes.
Overall, the cultivar delivers a coherent nose-to-palate journey. The lemon and pine set expectations on the nose, and the draw follows through with clarity. A gentle pepper close keeps the experience refreshing rather than cloying.
Cannabinoid Profile and Potency
Amnesia XXL Auto is widely reported as a moderately potent to strong auto, with THC commonly ranging from the mid-teens to around 20 percent by dry weight. Across vendor and independent lab summaries for Amnesia-type autos, typical results cluster between 16 and 20 percent THC, with outliers on either side depending on phenotype and cultivation. CBD is usually low in the classic Amnesia XXL chemotype, often testing below 1 percent.
Total cannabinoids in well-grown specimens frequently reach the low 20s percentage-wise, when summing THCA and minor constituents. Minor cannabinoids like CBG tend to appear in the 0.2 to 1.0 percent window, though this varies with stress and maturity. CBC is occasionally detectable at trace levels, adding to the broad ensemble.
Potency outcomes are highly sensitive to environmental and cultural inputs. High PPFD with adequate CO2, optimized VPD, and balanced mineral nutrition can lift cannabinoid totals by several percentage points compared with suboptimal rooms. Conversely, heat stress above 30 Celsius or chronic overfeeding can reduce resin density and total THC.
Harvest timing shifts perceived strength and character. Pulling earlier at mostly cloudy trichomes emphasizes a brisk, heady effect, while allowing 10 to 20 percent amber trichomes introduces a heavier undertone. While amber percentage does not change THCA into CBN without heat or extended oxidation, sensory reports often align with a deeper body feel as flowers fully mature.
Amnesia-related spectra tend to downplay CBD unless specifically bred for it, as in Amnesia CBD lines that incorporate CBD-dominant donors. Industry genealogies show Original Amnesia x unknown CBD strain combinations used to produce CBD-rich offshoots, distinct from the THC-leaning XXL Auto. Knowing which cut or seed lot you have is essential to set expectations for CBD content.
For home testing, thin-layer chromatography kits can provide a rough THC versus CBD ratio, but they lack the precision of HPLC. Professional lab analysis remains the best way to quantify cannabinoids, especially if dialing a medical regimen. Repeated testing across grows also reveals how cultivation tweaks nudge potency up or down.
In general, growers seeking the higher end of the reported THC range should prioritize environmental stability and avoid late-stage nutrient stress. Maintaining a clean root zone, consistent irrigation, and careful light management typically correlates with better resin outcomes. Under optimized conditions, Amnesia XXL Auto can compete credibly with many photoperiod hybrids on potency.
Terpene Profile and Sensory Chemistry
The terpene profile most commonly associated with Amnesia XXL Auto is terpinolene-forward, supported by notable limonene, beta-caryophyllene, and ocimene. In lab-tested Amnesia-type autos, total terpene content often falls between 1.5 and 3.0 percent by dry weight, though cultivation conditions can push results outside this band. Within that, terpinolene frequently ranges around 0.3 to 1.0 percent, with limonene in the 0.1 to 0.5 percent zone.
Beta-caryophyllene commonly registers between 0.1 and 0.4 percent, contributing a peppery, woody dimension. Ocimene and humulene appear as supportive actors, often within 0.05 to 0.3 percent each. Trace linalool, eucalyptol, and guaiol may also be present, adding floral and minty highlights.
Terpinolene’s bright, piney-citrus character is a hallmark of many uplifting sativas and aligns with Amnesia’s sensory identity. Limonene amplifies the lemon-orange facet, which many users associate with mood-elevating effects. Beta-caryophyllene, as a dietary cannabinoid that can engage CB2 receptors, may subtly shape body feel and inflammation perception without intoxication.
Environmental management strongly impacts terpene output. Cooler late-flower nights, gentle airflow, and avoidance of prolonged high heat help preserve monoterpenes like terpinolene and limonene. Overly rapid drying can strip these volatiles, flattening the bouquet even if lab totals remain respectable.
Fertilization practices also matter. Excess nitrogen in late flower can reduce terpene intensity, while adequate sulfur, magnesium, and micronutrients support enzymatic pathways for terpene synthesis. Growers often report better aroma density when tapering nitrogen in the final three to four weeks.
The auto format does not preclude strong terpene expression. With sufficient light and a stable root environment, Amnesia XXL Auto can achieve terpene levels on par with photoperiod siblings. Consistency across seeds improves as breeders stabilize the chemotype over successive generations.
From a sensory chemistry perspective, the citrus-herb-pine triad creates a coherent experience across aroma and flavor. This alignment enhances perceived quality because the nose reliably predicts the palate and the experiential tone. For consumers, that predictability is a practical advantage when selecting jars for daytime or creative sessions.
Experiential Effects
Subjectively, Amnesia XXL Auto tends to deliver an alert, buoyant, and motivational headspace. Early onset builds in the first 5 to 10 minutes, moving into clear mental energy and a mild body lightness. Many users describe enhanced focus and a sociable mood without pronounced sedation.
At moderate doses, the experience often skews functional, making it suitable for daytime tasks, creative pursuits, or active leisure. The citrus-pine profile aligns with a clean, bright sensory impression, which users sometimes frame as mentally uncluttered. Background muscle relaxation emerges later, softening tension without flipping into couchlock.
Higher doses can intensify racing thoughts in sensitive individuals, a trait common to terpinolene-dominant, THC-leaning cultivars. Users prone to anxiety may prefer smaller servings or pairing with calming activities. Hydration and a snack help mitigate occasional lightheadedness linked to fast onset.
Duration is typically 2 to 3 hours for primary effects, with residual uplift tapering gradually. Vaporization at moderate temperatures can feel shorter but cleaner, while combustion may carry a slightly heavier trailing edge. Individual metabolism, tolerance, and set and setting all shape the arc.
In group settings, the strain’s sociable tone often facilitates conversation and laughter. Many describe an introspective clarity that is engaging rather than overwhelming. Music, outdoor walks, and brainstorming sessions pair naturally with the cultivar’s bright character.
As with all cannabis effects, variability is real. Outliers with more myrcene or a heavier caryophyllene-humulene base may feel slightly more grounding. Conversely, phenotypes with very high terpinolene can read more electric, which some users love and others find edgy.
Consumers seeking a deeply sedating nighttime option may find Amnesia XXL Auto too lively. For those craving a crisp, motivational lift, however, it hits a reliable sweet spot. The overall profile mirrors classic Amnesia virtues, packaged in a faster, more compact format.
Potential Medical Uses
While formal clinical data on this specific cultivar are limited, the chemotype suggests several plausible areas of interest. THC in the mid-to-upper teens with low CBD can support short-term mood elevation and appetite modulation, as reported in observational studies of sativa-leaning profiles. Terpinolene and limonene are frequently discussed in relation to alertness and perceived mood, though human data remain preliminary.
Anecdotally, users turn to Amnesia-like autos for fatigue, low motivation, and situational stress during the day. The energizing tone may help offset cognitive fog, making routine tasks feel more approachable. For some, the peppery caryophyllene undertone adds a subtle body ease that helps with mild tension.
As a THC-forward strain, it may also assist with occasional pain flare-ups, particularly when combined with gentle movement. However, individuals sensitive to THC-related anxiety may prefer balanced THC:CBD options. CBD-dominant Amnesia offshoots exist in the wider family for those seeking a gentler profile.
For appetite support, the lively sensory component can be useful before meals. The citrus-forward flavor may improve palatability, complementing THC’s well-known role in hunger signaling. Dose titration is key to avoid overshooting into overstimulation.
Sleep applications are less straightforward given the energizing nature. Some users report a productive evening window followed by a clean drop-off, but others may find it too stimulating late in the day. In those cases, saving it for mornings or early afternoons tends to yield better alignment.
As always, medical use should be guided by personal response and professional advice where appropriate. Cannabis affects individuals differently, and comorbidities or medications can alter the experience. Documenting dose, timing, and outcomes can help identify patterns and refine use.
For patients specifically seeking CBD support, it is important to distinguish this THC-leaning XXL Auto from CBD hybrids like Amnesia CBD that derive from Original Amnesia x unknown CBD donors. The latter are intentionally bred to deliver measurable CBD content. Choosing the right chemotype can make a significant difference in therapeutic goals.
Comprehensive Cultivation Guide
Legal note: Cultivation laws vary by jurisdiction. Ensure you are compliant with local regulations before germination. The guidance below is for educational purposes and applies broadly to Amnesia XXL Auto in home or craft settings.
Lifecycle and timing: Expect 75 to 90 days from sprout to harvest under 18 to 20 hours of daily light. Preflower commonly initiates around day 21 to 28, with visible pistils stacking by week four. Full bulk typically arrives between weeks seven and ten, depending on phenotype and environment.
Plant size and density: Indoors, plan for 70 to 120 cm height with moderate lateral spread. A common layout is 4 to 9 plants per square meter in 3 to 5 gallon final containers, yielding an efficient canopy without overcrowding. XXL phenotypes appreciate space for side branches to breathe.
Expected yields: In dialed-in rooms, growers commonly report 400 to 550 grams per square meter, with advanced setups occasionally exceeding that range. Outdoors, single plants in large containers or raised beds often produce 50 to 180 grams each, influenced by sun hours, nutrition, and season length. CO2 enrichment and optimized lighting can improve indoor yields by 10 to 20 percent when PPFD supports it.
Medium and pH: In soil, aim for a pH of 6.2 to 6.8; in coco or hydro, target 5.8 to 6.2. A light, airy substrate helps autos build roots quickly, so consider lightly amended soils or a 70:30 coco perlite mix. Excessive early nutrition can stunt seedlings, so err on the gentle side and ramp up as vigor accelerates.
Nutrition and EC: In coco, many growers see success with EC around 1.2 to 1.5 during early veg and 1.6 to 2.0 in mid-to-late flower. Keep nitrogen modest after the third week to avoid dark, clawed leaves and muted terpenes. As a rough guideline, aim for 120 to 180 ppm nitrogen, 50 to 80 ppm phosphorus, 200 to 300 ppm potassium, 100 to 150 ppm calcium, and 50 to 75 ppm magnesium, with sulfur 30 to 60 ppm.
Water quality and irrigation: Target input EC and runoff checks to prevent salt accumulation, especially in coco. In soil, water to a light runoff or by weight to encourage healthy drybacks. Reverse osmosis water reconstituted to 0.2 to 0.4 EC with cal-mag often improves consistency where tap water is hard or variable.
Environment and VPD: Seedlings prefer 24 to 26 Celsius with 65 to 70 percent relative humidity, tracking a VPD near 0.8 to 1.0 kPa. Veg and early bloom thrive at 24 to 28 Celsius and 50 to 60 percent RH, VPD 1.0 to 1.3 kPa. Late bloom likes 24 to 26 Celsius and 45 to 50 percent RH, VPD 1.3 to 1.5 kPa to mitigate botrytis risk.
Lighting and DLI: Autos perform well under 18:6 or 20:4 light cycles from start to finish. PPFD in the 500 to 700 range supports early growth, ramping to 800 to 1000 PPFD in flower if CO2 is non-enriched. Daily Light Integral targets of roughly 35 to 45 mol per square meter per day in veg and 45 to 55 mol per square meter per day in flower are appropriate for this cultivar.
CO2 management: If enriching, maintain 800 to 1200 ppm during lights-on and keep PPFD correspondingly high to realize benefits. Ensure robust airflow and temperature control to prevent leaf-edge burn under higher light densities. Without CO2, maintain PPFD closer to 800 to 900 in late flower to avoid diminishing returns.
Training and canopy control: Low-stress training starting around day 14 to 18 helps open the canopy without stalling growth. Topping is optional and should be reserved for vigorous phenotypes at the 3rd node by day 18 to 21 at the latest; late topping can reduce yield 10 to 30 percent in autos. A light scrog or support ties prevent bending as colas bulk.
Defoliation strategy: Moderate leaf tucking and selective defoliation improve airflow and light penetration. Avoid heavy strip-downs in autos, as recovery windows are short. Aim to remove only leaves that shade prime flower sites or restrict air pathways, typically around week 4 and again at week 6.
Pest and disease management: The dense XXL colas warrant attention to botrytis prevention in late flower. Maintain vigorous horizontal airflow of roughly 0.3 to 0.6 meters per second across the canopy, and prune lower fluff to reduce microclimates. Use an integrated pest management program with routine scouting for spider mites, thrips, and fungus gnats, and deploy biologicals or soft chemistries proactively.
Feeding nuances for the chemotype: Sativa-leaning autos like this often appreciate magnesium and sulfur during heavy terpene synthesis. Epsom salt additions of 25 to 50 ppm magnesium equivalent can stabilize chlorophyll production in high light. Avoid overdoing nitrogen after week three; greener is not always better.
Flowering cues and maturity: Preflower pistils appear by the end of week three to four, with buds stacking rapidly thereafter. Monitor trichomes starting week eight, watching for a transition from clear to cloudy with scattered amber. For a bright, zesty profile, many growers harvest at mostly cloudy with 5 to 10 percent amber; for a slightly deeper effect, allow 10 to 20 percent amber.
Flushing and finish: In coco and hydro, a 7 to 10 day low-EC finish can help clean the profile; in living soils, rely on biological balance rather than aggressive flushing. Maintain stable environmental conditions to keep terpenes intact during the final swell. Avoid large temperature spikes or prolonged darkness, which offer dubious benefit and can stress plants.
Drying protocol: The 60-60 approach—about 60 Fahrenheit and 60 percent RH—is a reliable starting point for 10 to 14 days. Gentle airflow and darkness protect trichomes and volatile monoterpenes. Stems should bend and nearly snap before jarring to avoid trapped moisture.
Curing for quality: Jar at 58 to 62 percent RH and burp daily for the first week, then less frequently as moisture equalizes. A three- to six-week cure polishes the citrus-herb profile and brings a smoother finish. Over-drying below 55 percent RH can dull the bouquet and make smoke feel harsher.
Outdoors and greenhouse: Planting windows that provide at least 10 to 12 weeks of favorable weather are ideal. Full sun and warm nights accelerate growth; cool, wet late seasons increase mold pressure on the XXL colas. Greenhouses with dehumidification can extend the season and preserve quality in shoulder months.
Troubleshooting common issues: If leaves claw dark green in mid-veg, reduce nitrogen and verify root-zone EC. If pale interveinal chlorosis appears under high light, consider adding magnesium and checking pH for lockout. If buds fox-tail under strong LEDs, lower PPFD by 10 to 15 percent and reduce canopy temperature by 1 to 2 degrees.
Phenotype spread and selection: Expect relatively uniform height with minor variations in lateral branching and finish time. Some phenotypes lean more citrus-forward and electric, while others carry a slightly spicier, grounding base. Selecting mothers is not standard for autos, so choose seed lots from reputable sources and consider running a few extra plants to pick your favorites each cycle.
Post-harvest data and storage: Properly finished flowers commonly measure total terpenes within the expected 1.5 to 3.0 percent band when grown under stable conditions. Store in airtight glass with minimal headspace, cool temperatures, and darkness to preserve delicate fractions. With good storage, quality remains high for several months before gradual terpene oxidation softens the profile.
Benchmarking and expectations: Compared with smaller autos, Amnesia XXL Auto requires slightly more root room and light to reach its yield potential. In return, it delivers a recognizable Amnesia experience with practical, quick harvest cycles. For many home cultivators, this balance of speed, structure, and citrus-driven character defines the cultivar’s enduring appeal.
Contextual lineage note: Industry genealogy summaries reference combinations like Amnesia XXL Auto from Dinafem crossed with unknown lines from Original Strains, and Original Amnesia x unknown CBD donors leading to Amnesia CBD. While those are separate from the Optimus Seeds selection, they illustrate how the Amnesia XXL concept permeates modern catalogs. Optimus Seeds’ iteration keeps the ruderalis / indica / sativa balance front and center to ensure reliable performance for a broad audience.
