Written by Ad OpsIntroduction & Overview
Amnesia Haze Auto is the day-neutral, fast-cycling version of the legendary Amnesia Haze, tailored for growers and consumers who want sativa brightness without a long flowering time. Bred by Original Sensible Seeds, this autoflower merges ruderalis, indica, and sativa heritage into a compact, highly resinous plant with a notably zesty profile. Independent retailer listings place its potency firmly in the high range, with THC reported around 21% and indoor yields quoted at 450–550 g/m² under optimized conditions. Those numbers place Amnesia Haze Auto among the more productive and potent autos available, especially considering its short lifespan.
This cultivar is prized for its uplifting, clear-headed energy and the classic Haze aroma of lemon, incense, and spice. Unlike many sativa-leaning photoperiods that demand 11–14 weeks of flowering, Amnesia Haze Auto typically completes seed to harvest in roughly 70–85 days, depending on phenotype and environment. That condensed calendar translates to two or even three cycles per outdoor season in temperate zones, or year-round staggering indoors. Given its blend of accessibility and performance, it frequently appears in “top seeds” roundups on retailer catalogs.
For new growers, autos remove the need to manage light schedules, while for experienced cultivators, the strain offers a quick-turn platform to refine canopy control and environmental dialing. Consumers who favor daytime function, creative tasks, and mood lift will find its profile complementary, with caveats for those sensitive to strong sativa effects. The result is a modern auto that preserves the character of a revered classic while embracing the convenience and speed that the auto category is known for.
History
The Amnesia Haze lineage emerged from the Haze family tree that took shape through the late 20th century, blending tropical sativa landraces with incense-tinged Haze expressions. Amsterdam’s breeding scene popularized the line through the 1990s and 2000s, with numerous awards and a reputation for electrifying euphoria and citrus-incense terpenes. However, traditional Amnesia Haze typically requires long flowering times and careful environmental control, making it more demanding in northern climates and small spaces. Autoflowering genetics offered a natural solution to compact the timeline without discarding the signature profile.
As autoflower breeding matured, Original Sensible Seeds introduced Amnesia Haze Auto to capture the essence of the original in a faster, more approachable package. By integrating Cannabis ruderalis, breeders locked in day-neutral flowering, enabling plants to bloom under extended light without photoperiod manipulation. The goal was to preserve Haze brightness, aroma complexity, and resin character while optimizing for speed, height, and resilience. Early generations focused on stabilizing terpene and potency targets, then polishing yield and uniformity.
Over time, the auto version gained traction among home growers who sought that classic “lemon haze” experience from seed in under three months. Retailer data placing THC around 21% signaled that potency no longer had to be sacrificed for convenience. Yield ranges of 450–550 g/m² indoors further reinforced its reputation as a top-tier auto performer. Today, Amnesia Haze Auto stands as a flagship example of how autos can faithfully echo storied photoperiods.
Genetic Lineage
Amnesia Haze Auto is a ruderalis/indica/sativa hybrid, with a sativa-forward sensorial profile tempered by indica structure and ruderalis timing. Breeders rarely publish exact genomic percentages, but many stable autos carry roughly 20–30% ruderalis in their background to guarantee day-neutral flowering. The remaining proportion typically reflects the photoperiod parents, which in this case trace back to Amnesia Haze lines renowned for terpinolene-forward aromas and an energizing effect. The indica component moderates internodal spacing and improves calyx density for better indoor yields.
The ruderalis contribution shortens the lifecycle and hardens the plant against environmental variability. Autos initiate flower by age rather than day length, enabling a single plant to progress from sprout to harvest irrespective of lighting schedule. This genetic mechanism, derived from northern Eurasian ruderalis populations, was instrumental in transitioning traditional haze profiles to small tents and short seasons. Meanwhile, the Haze influence maintains the strain’s iconic citrus, incense, and spice bouquet.
Original Sensible Seeds selected phenotypes to preserve high resin output, a clean uplift, and a pronounced lemon-forward terpene mix. The result is a genotype that expresses sativa character in effect and bouquet without the unwieldy height and timeline. In practice, most phenotypes remain manageable indoors at 60–100 cm when trained, with a minority stretching taller if untrained under intense light. That balance of vigor and control is a key hallmark of modern autos derived from classic sativas.
Appearance
Amnesia Haze Auto tends to grow upright with a strong central cola and a halo of lateral branches that fill out when given early low-stress training. Internodal spacing is moderate, with a tendency to tighten under high light intensity and cooler canopy temperatures in early flower. Leaves often express a sativa-biased morphology—longer leaflets with narrower fingers—but the overall plant remains stocky compared to classic photoperiod Hazes. Under LED fixtures, foliage typically displays a vibrant lime to medium green.
The flowers form elongated spears with a favorable calyx-to-leaf ratio, making manicuring faster than leafy indica-dominant autos. As bloom matures, fine pistils start white and gradually turn orange to rust, signaling ripeness alongside trichome maturation. Resin density is high, with a frosty blanket of glandular trichomes that often extends onto sugar leaves. This visible resin layer corresponds with the reported high THC outcomes and sticky handling during trimming.
Phenotypes leaning more sativa can show light foxtailing late in flower, particularly under high PPFD or elevated canopy temperatures. When environmental parameters are well-managed, buds remain compact enough for efficient drying and a slow, even cure. Final plant height indoors commonly ranges from 60–100 cm in 11–15 L containers, while outdoor plants in full sun can reach 100–120 cm with adequate root volume. These growth metrics pair well with the 450–550 g/m² indoor yield range reported on seedshop listings.
Aroma
The aroma of Amnesia Haze Auto is distinctly citrus-forward, led by lemon zest and sweet orange top notes that read as bright, clean, and lively. Beneath the citrus sits a classic Haze core—incense, cedar, and faint floral tones—that gives the bouquet depth and length. Freshly rubbed sugar leaves often exude a sharper citrus-peel terpene burst, while intact colas lean more toward perfumed wood and spice. Together, the profile is unmistakably Haze but modernized by sweetness.
As the flowers cure, volatile terpenes stabilize, and the incense-cedar dimension becomes more pronounced. Many growers report the aroma transitioning from lemon-candy fresh to a layered perfume with hints of sandalwood and faint mint. Grinding releases a cloud of lemon, grapefruit, and faint fuel-like sharpness in some phenotypes. This slicing, high-registered bouquet translates well to vaporization and remains present even at lower temperatures.
The dominant terpenes responsible for these notes likely include terpinolene, limonene, and beta-caryophyllene, with support from ocimene and linalool. A well-cured jar opens to an aroma that fills the space within seconds, reflecting robust total terpene content. Proper drying and curing—10–14 days at about 60% RH and 18–21°C—significantly accentuates incense complexity and reduces chlorophyll notes. Over-drying below 50% RH risks dulling the citrus and flattening the top end.
Flavor
On the palate, Amnesia Haze Auto delivers a brisk lemon entrance layered with sweet orange and faint grapefruit bitters. The mid-palate trends toward incense and light herbal wood, often interpreted as sandalwood or cedar. A subtle peppery bite on the exhale is consistent with beta-caryophyllene presence, finishing crisp and clean. The overall impression is bright, cooling, and persistent.
Vaped at lower temperatures (170–185°C), the citrus and floral aspects are most prominent, yielding a refreshing and terpene-rich session. At higher temperatures (190–205°C), spice and wood become more dominant, with increased mouthfeel and a slightly drier finish. Combustion shifts emphasis to pepper-spice and resin, trimming some of the delicate citrus top. Regardless of method, a slow cure at 62% RH preserves sweetness and reduces harshness.
Water-cured or aggressively dried samples may lose the sweet-lemon high notes and present as more woody-spicy. Conversely, samples dried too quickly can taste grassy due to retained chlorophyll. Aim for a “60/60” dry (60°F/60% RH) for 10–14 days to maximize flavor retention. A 4–6 week cure typically unlocks the best balance of lemon brightness and incense depth.
Cannabinoid Profile
Retailer and seedshop listings for Amnesia Haze Auto commonly cite THC around 21%, which equates to approximately 210 mg THC per gram of properly dried flower. In practice, phenotypes may express a range—often 18–22%—depending on environment, harvest maturity, and post-harvest handling. CBD is generally low, frequently below 1% (1–10 mg/g), aligning with the sativa-dominant sensory effects. Minor cannabinoids like CBG are commonly present in the 0.2–0.6% range, contributing modestly to entourage effects.
For inhalation, bioavailability varies widely, with studies suggesting 10–35% depending on device, temperature, and inhalation technique. A 0.5 g joint of 21% THC flower contains roughly 105 mg of THC, of which an estimated 10–35 mg may be absorbed. That inhaled dose is sufficient for strong effects in most users, underscoring the importance of measured titration for those new to high-THC autos. Vaporization generally yields more efficient cannabinoid delivery per mg compared to combustion.
For edibles, decarboxylation converts THCA to THC; typical protocols use 105–115°C for 35–45 minutes depending on material and oven stability. Newer consumers should start with 2.5–5 mg THC and wait at least two hours before redosing, given gastrointestinal absorption variability. Experienced consumers may find 10–20 mg adequate for sustained effects, though sativa-leaning profiles can feel more stimulating than sedative at equivalent doses. Always consider set, setting, and tolerance when adjusting dose.
Because CBD content is usually minimal, the profile feels distinctly THC-forward, especially in fast-onset inhaled contexts. Users sensitive to THC-induced anxiety can blunt intensity by pairing small doses with CBD-rich material in a 1:1 or 1:2 THC:CBD blend. Alternatively, lower-temperature vaping that favors terpinolene and limonene may feel brighter yet gentler. Careful harvest timing that avoids excessive amber trichomes can also keep the effect lighter and less sedative.
Terpene Profile
While exact lab results vary by grow, Amnesia Haze–type autos commonly test with terpinolene and limonene as major contributors, often supported by beta-caryophyllene, ocimene, myrcene, and linalool. In high-end indoor samples, total terpene content typically falls between 1.5–3.0% by weight (15–30 mg/g of dried flower). Within that, terpinolene can land around 2–10 mg/g, limonene around 2–8 mg/g, and beta-caryophyllene around 1–5 mg/g, given good environmental control. These ranges are consistent with sensory observations of lemon, incense, and pepper-spice.
Terpinolene is strongly associated with fresh, high-registered notes—pine, citrus, and floral complexity—and is characteristic of many Haze descendants. Limonene brings bright lemon and orange tones and has been studied for mood-elevating and anxiolytic properties in preclinical models. Beta-caryophyllene engages CB2 receptors and contributes to spicy-pepper undertones and anti-inflammatory potential. Ocimene and linalool add green-floral lift and gentle lavender-like sweetness, respectively.
Environmental variables—especially drying and curing—significantly influence measured terpene outcomes. Warm, fast dries can cut measured terps by 30% or more compared to slow, cool dries at stable humidity. Likewise, high light intensity without adequate canopy cooling can volatilize monoterpenes near harvest. For this cultivar, maintaining 18–21°C and 55–60% RH during dry and cure preserves citrus brightness and keeps incense notes intact.
Cultivation inputs also matter: sulfur availability, light spectrum, and root-zone oxygenation correlate with terpene expression in grower reports. Blue-leaning spectra in early flower can enhance monoterpene prominence, while balanced full-spectrum LEDs in mid-to-late flower support overall complexity. Organic-amended soils rich in microbial activity often yield fuller terpene profiles at similar cannabinoid levels. Regardless of method, avoiding nutrient burn near harvest helps preserve the nuanced aroma signature.
Experiential Effects
Consumers consistently describe Amnesia Haze Auto as uplifting, clear, and energizing without the heavy body drag of indica-dominant autos. The onset via inhalation is typically rapid, beginning within 1–5 minutes and cresting around 30–45 minutes. The cognitive feel is bright and outward-facing—good for creative tasks, socializing, or focused work—though individual response varies. At higher doses, some users report racy or jittery edges typical of strong sativa expressions.
The mood lift leans positive, with an undercurrent of light euphoria and sensory enhancement. Many users note enhanced appreciation of music and texture, with a clean, lemon-perfume presence that mirrors the aroma. The body experience tends toward light relaxation rather than sedation, preserving coordination and alertness in moderate doses. Peak duration often lasts 60–120 minutes for inhaled routes, with a gentle taper over another hour.
Those prone to THC-induced anxiety should start with small inhalations spaced 10–15 minutes apart. Hydration, a light snack, and a comfortable environment reduce overactivation risk. Pairing with CBD (e.g., a 1:1 CBD-dominant flower or tincture) can soften the edge while preserving clarity. Avoiding caffeine co-administration can also prevent compounding jitters.
When harvested earlier with mostly cloudy trichomes, the effect skews brighter and more cerebral. Later harvests with 10–20% amber trichomes introduce a slightly warmer body tone and potentially reduced edginess. For daytime use, many prefer an earlier window to keep motivation and mental crispness highest. Individual titration remains the best guide, especially given the strain’s strong THC content.
Potential Medical Uses
Amnesia Haze Auto’s profile suggests utility for daytime symptoms where energy and mood are key. Patients report benefits for low mood, anhedonia, and fatigue, aligning with limonene- and terpinolene-forward chemotypes. The relatively clear-headed nature in moderate doses may assist with task engagement and motivation. However, individuals with anxiety disorders should approach cautiously due to the stimulating edge.
Evidence synthesized by the National Academies (2017) found substantial support for cannabis in chronic pain and chemotherapy-induced nausea, though not strain-specific. The beta-caryophyllene content may offer CB2-mediated anti-inflammatory effects relevant to neuropathic or inflammatory pain. For migraine and tension-type headaches, fast-onset inhalation at the earliest prodrome can be helpful in some patients. Anecdotally, users cite reduced headache intensity and improved tolerance to light and sound at low-to-moderate doses.
Appetite stimulation is present but not as pronounced as with myrcene-heavy indica chemotypes. For gastrointestinal discomfort, small inhaled doses can ease nausea without rendering the user sedentary. Some patients with ADHD report improved task initiation on sativa-leaning profiles, though others experience increased distractibility—individual response varies considerably. Monitoring dose and timing relative to responsibilities remains important.
Practical starting guidance for inhalation is 1–2 small puffs, waiting 10 minutes to assess. For tinctures or edibles, 2.5–5 mg THC is a conservative entry point, especially for those without daily tolerance. Patients concerned about overactivation can co-administer CBD at a 1:1 ratio or higher. As always, medical decisions should be personalized and discussed with a qualified clinician familiar with cannabinoid therapeutics.
Comprehensive Cultivation Guide
Lifecycle and timing: As an autoflower, Amnesia Haze Auto typically runs from seed to harvest in 70–85 days. Some sativa-leaning phenotypes may extend to 90+ days under cooler conditions or after heavy training stress. Indoors, you can maintain a consistent 18/6 or 20/4 light schedule from start to finish with no need to switch to 12/12. Outdoors, the day-neutral trait allows multiple cycles per season if planted after the last frost and provided with 10–12+ hours of direct sun.
Expected performance: Retailer listings cite 450–550 g/m² indoors under optimized environments using high-efficiency LEDs and proper canopy management. Outdoors, individual plants commonly yield 90–180 g per plant in favorable climates with full sun and 20–30 L containers or in-ground beds. Height indoors usually lands at 60–100 cm in 11–15 L containers; outdoors, 80–120 cm is typical with adequate root volume. These metrics align with vigorous autos that maintain sativa-like architecture but remain manageable.
Germination and seedling: Germinate in a lightly moistened medium at 24–26°C, aiming for emergence within 24–72 hours. Place seedlings immediately under gentle light at 200–300 PPFD to prevent stretch, keeping RH at 65–75% and VPD around 0.6–0.8 kPa. Avoid overwatering—seedlings need only a light ring of moisture around the stem. In coco or hydro, start at 0.3–0.6 EC; in soil, feed is generally unnecessary for the first 7–10 days.
Container and medium: Autos dislike transplant shock, so sow directly into the final pot when possible. A 11–15 L (3–4 gal) container with an airy soil mix (e.g., 30% perlite, 10% coco or rice hulls) balances aeration and moisture retention. Coco growers can use 70/30 coco-perlite with frequent fertigation for maximal oxygenation and growth speed. Fabric pots improve air pruning and root vigor but may require more frequent irrigation.
Vegetative phase (week 1–3): Under 18–20 hours of light, target 24–26°C day, 20–22°C night, and 60–65% RH for rapid establishment. Increase PPFD to 400–600 by the end of week 2 as leaves expand. Begin low-stress training (LST) around day 14–20 by gently bending the main stem to promote even canopy development. Keep EC around 1.0–1.2 in coco and watch for early magnesium demands under LED; supplement Cal-Mag as needed.
Early flower (week 4–6): Autos initiate bloom by age; you’ll see pistils and stretch begin around days 21–28. Gradually raise PPFD to 700–850 and shift RH to 50–55% with a VPD near 1.1–1.3 kPa. Feed transitions from N-forward to P/K-forward; in coco, move to 1.4–1.6 EC with balanced macros and robust Ca/Mg support. Continue LST to keep tops even, but avoid high-stress techniques like topping past week 3 to minimize stall risk.
Mid-to-late flower (week 7–11): Increase PPFD to 850–1000 if CO2 is ambient, ensuring canopy temperatures stay 24–26°C to avoid terpene volatilization. RH at 45–50% reduces botrytis risk as buds densify; maintain airflow with two+ oscillating fans and a clean intake. EC can rise to 1.6–2.0 depending on cultivar appetite and medium; monitor runoff EC and leaf tips to avoid burn. Remove only leaves that shade bud sites directly, keeping defoliation conservative to maintain photosynthetic capacity.
Light management: With high-efficiency LEDs (>2.5 µmol/J), target a DLI of 40–50 mol/m²/day through mid flower and slightly above 50 late in bloom if plants are acclimated. At 20 hours on-time, 800–900 PPFD commonly achieves this DLI; at 18 hours, 900–1000 PPFD may be needed. If supplementing CO2 to 900–1200 ppm, canopy PPFD of 1000–1200 becomes practical, but ensure temperature and nutrition are dialed. Always acclimate plants to higher intensities over several days to avoid photobleaching.
Nutrition: In soil, use a lightly amended base and top-dress or apply liquid organics as flower advances. In coco/hydro, maintain pH 5.8–6.2; in soil, aim for pH 6.2–6.8. General EC targets: 1.0–1.2 in late veg, 1.4–1.6 early flower, and up to 1.8–2.0 mid-late flower if the plant signals demand. Provide 2–4 ml/gal Cal-Mag under LEDs with soft water, and consider silica (50–100 ppm) for stem strength and stress resilience.
Watering: Allow 10–20% runoff in coco to prevent salt accumulation; in soil, water to light runoff and let the top 2–3 cm dry before the next irrigation. Aim for complete wet-dry cycles within 24–48 hours to keep roots oxygenated. Overwatering is a common yield killer in autos—err on the side of slightly drier, especially early on. Use pot weight as your primary guide and adjust frequency as plant size increases.
Training and canopy control: LST is the safest, highest-return technique—tie the main stem and laterals to create an even canopy. A light SCROG can work if installed early, but remember the short veg window limits fill time. Avoid topping after day 21 and skip high-stress techniques like supercropping unless the plant is exceptionally vigorous. Strategic leaf tucking maintains light penetration without removing too much leaf area.
Environmental control: Maintain negative pressure and carbon filtration to manage the strong lemon-incense aroma during late flower. Keep intake air clean and slightly cooler than canopy to support VPD and reduce pest ingress. Nighttime temperature drops of 2–4°C are sufficient; larger swings can stress autos. Stable environments consistently improve terpene retention and resin coverage.
Pest and disease management: Common threats include spider mites, fungus gnats, and powdery mildew. Prevent with strict hygiene, sticky traps, and good airflow; consider Bacillus subtilis or potassium bicarbonate as gentle PM preventatives. For mites, predatory mites (Phytoseiulus, Amblyseius) or targeted sprays like horticultural soap can help when applied early. Avoid systemic or harsh treatments late in flower to preserve flavor and safety.
Harvest timing: Monitor trichomes with a 60–100x loupe; harvest around 5–15% amber for a balanced effect or earlier (mostly cloudy) for a brighter profile. Pistil color alone is not reliable; focus on gland heads turning from clear to cloudy. Many phenotypes ripen between days 70–80 from sprout, though cooler rooms may push maturity closer to 85–90 days. Plan a 7–10 day nutrient taper to encourage a gentle fade while sustaining essential minerals.
Drying and curing: Hang whole plants or large branches at 18–21°C and 55–60% RH with gentle airflow. Aim for a 10–14 day dry so small stems snap and larger stems bend with a faint crack. Jar cure at 62% RH, burping daily for the first week, then weekly for 4–6 weeks. Proper cure preserves lemon brightness and deepens the incense-cedar complexity.
Performance benchmarks: With dialed conditions, 1.2–1.8 g/w is an attainable indoor range under efficient LEDs for experienced growers. The 450–550 g/m² indoor figure reported on seedshop listings aligns with dense canopies in 0.8–1.2 m² tents using 240–320 W fixtures. Outdoors, 90–180 g per plant is common, with exceptional plants exceeding 200 g in long, sunny seasons. These targets assume consistent environment, disciplined irrigation, and early LST.
Common mistakes: Overfeeding late flower can mute terpenes and slow maturation. Topping too late, heavy defoliation, or transplant shock can stall autos and cut yields by 15–30%. Insufficient light intensity or poor canopy evenness reduces g/m² more than any single nutrient tweak. Focus on environment and structure first; nutrients are supportive, not curative.
History of Breeding & Reputation
Original Sensible Seeds positioned Amnesia Haze Auto to bring a famously long-blooming sativa into an 11–12 week total seed-to-jar window. Early evaluations praised its faithful lemon-incense bouquet and robust resin output relative to its size. As autos improved across the industry, consumer expectations rose for potency, and Amnesia Haze Auto kept pace with listings around 21% THC. Performance like 450–550 g/m² indoors helped cement its status as a top-league auto.
In retail catalogs and online seedshops, this cultivar frequently appears in feature lists among other popular autos. Its inclusion in “top seeds” or “easy-grow” roundups highlights both approachability and outcome quality. Growers who cut their teeth on Northern Lights Auto or Blueberry Auto often graduate to Amnesia Haze Auto for a more stimulating profile. The strain’s widespread appeal reflects a rare mix of speed, potency, aroma, and classic Haze character.
