Written by Ad OpsOrigins and Breeding History
Amnesia x Double Diesel Haze is a mostly sativa polyhybrid created by the boutique breeder KGBeans, a house known among collectors for pushing terpene intensity and cerebral clarity in haze-forward lines. The cross marries a classic European Amnesia cut with a diesel- and haze-inflected partner, Double Diesel Haze, to amplify volatile aromatics and a high-energy effect profile. From its outset, the project prioritized heady euphoria, fast-onset vigor, and a layered terpene bouquet that tilts citrus-fuel with incense undertones. Growers familiar with both parents will immediately recognize its long-flowering sativa structure and its heavy emphasis on headspace over body sedation.
The creation of this hybrid reflects a broader trend of modern breeders recombining legacy 1990s–2000s genetics to refresh flavor and potency without sacrificing usability. Amnesia-derived lines routinely test in the ~20% THC range in European markets, while diesel families often sit between 18–24% THC, giving this cross a robust cannabinoid ceiling to work with. The goal, as described by growers who have run KGBeans material, is not just higher potency but a high that remains functional and productive. In effect, KGBeans sought to compress the best of two worlds: the mental lift and lime-incense from Haze, and the jet-fuel, grapefruit-diesel punch associated with the Diesel lineage.
Commercial appeal for this cultivar stems from its strong scent and excellent bag appeal, but it was also designed with craft growers in mind. Sativa-dominant genetics can be unruly, so selections have emphasized stronger lateral branching and a more predictable stretch, which can help reduce the need for extreme trellising. Early feedback from experienced cultivators suggests it takes training very well and rewards dialed environmental control. Those traits make it a candidate for both artisanal indoor rooms and patient outdoor growers in warm, extended-season climates.
While release dates and clone-circulation specifics are not widely publicized, the cultivar has circulated in seed form and small-run drops typical of specialty breeders. This keeps the gene pool diverse enough to allow for hunting distinct phenotypes without losing the core identity of the cross. As with many haze-forward releases, the breeder’s advice emphasizes patience in bloom and careful post-harvest handling to preserve volatile terpenes. For connoisseurs who prioritize effect and aroma synergy, the strain has quickly developed a reputation as a high-spirited daytime choice.
Genetic Lineage and Ancestry
Amnesia x Double Diesel Haze brings together two influential families whose roots trace back to foundational landrace influences. The Amnesia side is grounded in Dutch Haze breeding: a tangle of Original Haze derivatives crossed and backcrossed with Skunk, Northern Lights, and occasional Afghan contributions for vigor and resin. Many Amnesia cuts are thought to be Haze-dominant expressions with a recognizable terpinolene-limonene aromatic signature. These genetics are prized for electric, euphoric highs and an incense-citrus profile, both of which show up strongly in this hybrid.
The Double Diesel Haze parent stacks Diesel and Haze traits to double down on pungency, sour-citrus fuel, and soaring cerebral lift. Diesel lines trace to the Chemdog family, a 1990s American lineage whose descendants include Sour Diesel and NYC Diesel. Chem/Diesel genetics are well known for their sharp, solvent-like fuel notes, grapefruit and lime zest, and an assertive head zap. When combined with Haze’s spicy, floral, and woody incense, the result is a complex perfume that is bright, sharp, and unmistakably sativa-leaning.
Under the hood, the ancestry likely includes a mosaic of Mexican, Colombian, Thai, and South Indian influences carried forward through Haze, plus Afghani components that contribute density and resin. This balance helps explain why the buds can show both lanky sativa architecture and a relatively heavy trichome coating. The Afghan and Skunk building blocks can temper the most extreme Haze stretch while adding hydrocarbon-solvent terps from the Diesel side. For growers and extractors, this hybridization strategy tends to produce high terpene-to-cannabinoid ratios that translate to loud flavor in both flower and concentrate.
KGBeans’ selection aims to keep the lineage expressive rather than over-stabilized, allowing phenotypes to lean Amnesia or Diesel while preserving haze clarity. In practice, that means you’ll find plants where terpinolene and ocimene dominate, as well as profiles that tilt limonene and beta-caryophyllene with a sour-fuel core. Both archetypes share a tall, energetic morphology and a long bloom window typical of haze crosses. The result is a cross that rewards phenotype selection and careful environment matching to hit the desired flavor and effect targets.
Morphology and Appearance
Amnesia x Double Diesel Haze presents as a stately, mostly sativa plant with elongated internodes and pronounced apical dominance. Indoors, untrained plants often reach 120–180 cm, and outdoors they can surpass 250 cm in favorable climates. A 1.8–2.5× stretch after the flip is common, so topping and low-stress training are recommended to manage canopy height. Lateral branches are flexible yet sturdy, supporting extended colas when properly trellised.
Buds are typically spear-shaped and medium-dense, reflecting the haze side’s preference for elongated flowers rather than tight, golf-ball nuggets. Mature flowers range from lime to medium green with occasional chartreuse flashes, accented by a riot of burnt-orange pistils. Under strong light, a thick frosting of capitate-stalked trichomes lends a glassy sheen that signals high resin content. Some phenotypes exhibit light foxtailing if pushed with high PPFD or heat late in bloom.
Calyx stacking tends to be uniform, but calyx-to-leaf ratios vary by phenotype; Diesel-leaners may carry slightly more leaf, especially near the bract tips. Sugar leaves are slender and easy to manicure, which is a relief given the plant’s overall yield potential. The trim is often terp-laden, making it a suitable input for ice water or hydrocarbon extraction. Finished flower shows well in a jar, with visible trichome stalks and a vibrant color palette that catches the eye.
Visually, two phenotype archetypes commonly appear. The Amnesia-leaning expression shows more incense-citrus and a slightly airier bud with bright lime hues. The Diesel-leaning expression packs a denser cola and darker green tones, carrying a deeper fuel aroma even in late veg. Both expressions share a dramatic bag appeal once cured properly, with glistening resin and pistils that turn from orange to copper as harvest approaches.
Aroma Profile
The nose on Amnesia x Double Diesel Haze is immediate and loud, often detectable upon opening a jar across a room. Expect a top note of lime zest, grapefruit pith, and candied citrus peels that reads fresh and sparkling. Beneath that brightness lies a core of kerosene, petrol, and diesel fumes that lends a biting, solvent edge. Supporting nuances include sweet basil, cracked pepper, and dried incense wood reminiscent of classic Haze.
During grind, the aroma becomes more complex and volatile. Citrus oil and terpentine-like facets bloom, while an herbaceous quality suggests fresh-cut lemongrass and mint. Some cuts emit a faint tropical fruit note, like underripe mango or guava, driven by ocimene and myrcene. The overall character is clean, sharp, and distinctly uplifting before the first draw.
In a room-temperature dry pull, the bouquet is more floral and woody, echoing sandalwood and cedar, a hallmark of haze ancestry. The diesel component intensifies when warmed, so expect the terp profile to shift toward fuel as flower heats in a vape or joint. This thermal evolution signals a diverse terpene blend with different volatilities—terpinolene and ocimene lift the first impression, while limonene and caryophyllene come forward with heat. Experienced consumers often note the nose tingling characteristic of high-terpene diesel hybrids.
Total terpene content in well-grown examples commonly falls between 1.5–3.0% by dry weight, with standout phenotypes reaching 3.5–4.0%. Within that, terpinolene can dominate at 0.5–1.2%, while limonene and beta-caryophyllene each contribute 0.3–0.8% in balanced expressions. Myrcene, ocimene, and humulene fill out the mid-band in the 0.1–0.7% range. The result is a layered scent that remains vivid even months into a proper cure.
Flavor and Mouthfeel
On the palate, Amnesia x Double Diesel Haze is crisp and zesty on the first hit, with lemon-lime soda and grapefruit rind leading the charge. A resinous diesel undertone arrives on the exhale, reading like fuel-soaked citrus peels with a flicker of white pepper. The haze lineage adds a dry, woody incense finish that lingers on the tongue and palate. Together, the flavors track the aroma closely but gain spice and depth with heat.
In joints, the smoke tends toward medium density and remains smooth when the flower is correctly cured to 10–12% moisture content. Vaporization at 170–185°C (338–365°F) emphasizes the citrus-terpinolene bouquet, while 190–200°C (374–392°F) reveals deeper fuel and caryophyllene spice. Consumers who prefer a terp-forward experience often keep temps below 190°C to preserve top notes. Above 200°C, the flavor darkens into sandalwood, black pepper, and faint diesel resin.
Mouthfeel is tingling and bright, occasionally numbing the lips on heavy draws, a sensation often associated with high-terpinolene/diesel chemotypes. The aftertaste can be surprisingly sweet for a fuel-forward cultivar, with a candied citrus tail balanced by herbal bitterness. Hydrating before and after a session helps mitigate cottonmouth, which is common with potent sativa-leaning flower. Pairing with herbal teas like lemon balm or mint complements the flavor arc.
From an extraction standpoint, the oil carries intense, solvent-like citrus with a persistent incense core, making it a favorite for hydrocarbon live resin when grown indoors with high terpene targets. Rosin from fresh-frozen material can preserve the lime-fuel edge effectively if pressed at 80–90°C (176–194°F). Post-cure concentrates skew spicier and woodier, reflecting the higher boiling points of caryophyllene and humulene. Across formats, the flavor remains assertive and characterful—distinct from sweeter dessert cultivars.
Cannabinoid Profile
Given its ancestry, Amnesia x Double Diesel Haze typically expresses a THC-dominant chemistry with modest minor cannabinoids. In markets where analogous haze/diesel hybrids are tested, THC commonly ranges from 18–26% by dry weight (180–260 mg/g), with dialed indoor runs clustering around 20–24%. CBD is usually low at 0.05–0.8% (0.5–8 mg/g), though a rare CBD-leaning pheno could appear in larger seed runs. CBG is often detectable at 0.2–1.0% (2–10 mg/g), contributing a subtle baseline of clarity.
The THC:CBD ratio usually exceeds 20:1, which correlates with the cultivar’s energetic, cerebral character. Minor cannabinoids like CBC (0.1–0.5%) and THCV (trace to 0.3%) may appear and can modestly influence effect quality. THCV, even at low levels, is associated anecdotally with a clear-headed, appetite-suppressing edge in some sativas. However, its concentration in most phenotypes remains too low to be a dominant driver.
Potency variance tracks closely with cultivation conditions such as light intensity, nutrient balance, and harvest timing. Late harvests with higher amber trichome percentages can slightly shift the subjective effect toward heavier relaxation despite similar THC numbers. Total active cannabinoids (TAC) of 20–28% are typical for well-grown flower, while concentrates from fresh-frozen material can exceed 75% total cannabinoids. As always, formal lab analysis is necessary to confirm the profile of any particular batch.
When dosing, remember that inhalation delivers peak plasma THC within minutes, with psychoactive effects leveling within 15–30 minutes and lasting 2–3 hours for most users. Given the upper-range potency, titration with small, measured inhalations is recommended for new consumers. For medical users, microdoses of 1–2 mg inhaled THC equivalents may produce functional benefits with fewer adverse events. Because CBD is low, pairing with a separate CBD product can help soften intensity for sensitive individuals.
Terpene Profile
The leading terpene in Amnesia x Double Diesel Haze frequently is terpinolene, expressed in the 0.5–1.2% range by dry weight (5–12 mg/g). Terpinolene is associated with bright citrus, pine, and a fresh, almost effervescent herbal note, and its dominance aligns with the cultivar’s energetic profile. Limonene commonly follows at 0.3–0.8% (3–8 mg/g), adding lemon-lime and grapefruit accents that lift mood perception. Beta-caryophyllene appears in the 0.2–0.6% range (2–6 mg/g), introducing peppery spice and potential CB2 receptor interaction.
Supporting terpenes round out the bouquet and mouthfeel. Myrcene at 0.2–0.7% (2–7 mg/g) adds a soft, fruity base and can modulate onset speed, especially in diesel-heavy expressions. Ocimene, 0.2–0.5% (2–5 mg/g), contributes green, tropical, and minty facets seen in the brightest phenos. Humulene (0.1–0.3%) and linalool (0.05–0.2%) bring woody and floral elements to the aftertaste.
In total, terpene content typically falls between 1.5–3.0% by weight, with high-performance grows occasionally surpassing 3.5%. Such totals are common in modern, haze-forward craft varieties and correspond to the strain’s memorable nose that cuts through a room. Higher terpene totals correlate with perceived flavor intensity but not necessarily with potency or effect strength. Still, many users report better satisfaction with batches testing above ~2.0% total terpenes due to richer flavor and a fuller entourage effect.
From a process perspective, these terpenes are volatile and sensitive to heat, oxidation, and light. Maintaining cool, dark storage and curating a slow, 10–14 day dry at 60°F/60% RH preserves the top-note terpinolene and ocimene. Over-drying below 55% RH risks flattening the citrus-pop and muting the incense finish. If extracting, subcritical hydrocarbon runs and cold ethanol methods can retain the lime-fuel brightness better than warmer processes.
Experiential Effects
Expect a rapid-onset, cerebral lift within 2–5 minutes of inhalation, with a crisp, awake headspace that favors focus and creative flow. Early effects often include an elevated mood, talkativeness, and sensory sharpening—colors may feel brighter and music more engaging. The high tends to plateau into a motivated, task-friendly state rather than a jittery rush when dosed conservatively. Most users report a 2–3 hour duration for the main phase, followed by a gentle comedown.
At higher doses, the diesel-haze synergy can become intensely stimulating, occasionally tipping into racy or anxious territory in sensitive individuals. Dry mouth and dry eyes are common side effects, with observational surveys placing them among the top-reported adverse experiences in 30–60% of sessions across THC-dominant flower. A modest uptick in heart rate is typical after inhalation, peaking within 15 minutes. Snacks may be more appealing, though this cultivar’s appetite stimulation is generally moderate compared to dessert-leaning indicas.
Set and setting matter for getting the most from this profile. Daytime, outdoor, or social scenarios pair naturally with its brisk clarity, as do creative pursuits like design, writing, or music. For focus-heavy tasks, microdosing or pacing draws can keep the energy channeled and productive. If prone to anxiety, pairing with a small amount of CBD or choosing calming activities can smooth the ride.
Compared to purely haze expressions, this hybrid’s diesel backbone lends stronger motivation and a punchier onset. Compared to classic Diesel, the haze influence contributes a cleaner, more incense-like headspace with less couchlock. Many users describe the experience as a “spark plug” strain: efficient, uplifting, and decisive, especially within the first hour. Tolerance builds with frequent use, so rotating cultivars can help preserve the initial sparkle.
Potential Medical Uses
While controlled clinical data for this exact cultivar are limited, its chemistry mirrors sativa-forward, THC-dominant varieties with uplifting terpenes. Observational datasets offer useful context: a 2017 National Academies review concluded there is substantial evidence that cannabis is effective for chronic pain in adults, particularly neuropathic components. A 2021 analysis of thousands of self-tracked cannabis sessions on a symptom-management app found average reductions of 3–4 points on a 0–10 symptom intensity scale across conditions, with flower producing rapid relief. Translating that to this strain suggests rapid-onset benefits for mood, stress, and certain pain types when inhaled.
For headache disorders, a 2019 study from Washington State University reported 47.3% reductions in headache severity and 49.6% reductions in migraine severity following inhalation, based on user-reported data. Citrus-forward, terpinolene/limonene-rich chemovars are often favored anecdotally for migraine onset due to fast relief and minimal sedation. In addition, beta-caryophyllene’s CB2 activity is of interest for inflammatory pain pathways, though human data remain preliminary. Patients with migraine should be mindful of triggers—strong aromas or high THC can worsen symptoms for a subset, so cautious titration matters.
In mood and energy domains, uplifting chemotypes have been self-reported to aid fatigue, low motivation, and situational depression. Surveyed medical users commonly cite improved mood and reduced stress within minutes, aligning with the cultivar’s brisk onset. Still, high-THC cannabis can exacerbate anxiety in susceptible individuals, with some studies noting increased odds of transient anxiety at higher doses. For those patients, pairing with CBD (10–20 mg) or choosing smaller, spaced inhalations can reduce adverse experiences.
For attention and focus, some adults with ADHD-like symptoms report short-term improvements in task initiation and hyperfocus, particularly with sativa-leaning profiles. Evidence is mostly anecdotal and heterogeneous, and high THC may impair working memory at higher doses. Microdosing (1–2 inhalations, ~1–3 mg THC) may provide benefits without cognitive overreach for certain individuals. Clinicians typically recommend documenting dose, timing, and outcome to identify personal response patterns.
Sleep impacts vary; at small doses, the cultivar can delay sleep due to mental stimulation, but post-peak relaxation may assist sleep latency later in the evening. For insomnia, this is not a first-choice cultivar, but it may help if pain or rumination are the primary obstacles earlier in the night. Appetite effects are moderate; those seeking strong appetite stimulation may prefer indica-dominant chemovars with higher myrcene. As with all medical use, patients should consult their clinicians, monitor cardiovascular responses, and avoid high-THC exposure if they have a history of psychosis or poorly controlled anxiety disorders.
Comprehensive Cultivation Guide
Amnesia x Double Diesel Haze is a mostly sativa hybrid that rewards attentive growers with high terpene totals and generous yields. It prefers stable environments, ample root space, and a balanced feed, and it responds well to training to manage its haze stretch. Indoors, plan for 10–12 weeks of flowering (70–84 days) depending on phenotype and desired trichome maturity. Outdoors in warm, Mediterranean climates, harvest typically lands late October to early November at 35–45° N.
Environment and climate targets are critical for terp retention. Vegetative temperatures of 75–82°F (24–28°C) with 60–70% RH promote vigorous growth; flowering temperatures of 76–84°F (24–29°C) with 50–55% RH early bloom, tapering to 40–45% RH late bloom, help prevent mildew and preserve terps. If supplementing CO2 (800–1200 ppm), maintain the higher end of the temperature range for optimal assimilation. Aim for VPD around 0.8–1.2 kPa in veg and 1.2–1.5 kPa in bloom, relaxing to 1.0–1.2 kPa in late flower to protect volatile terpenes.
Lighting intensity should be scaled to growth stage and canopy density. In veg, 300–500 µmol/m²/s PPFD is sufficient, producing a 35–45 DLI on an 18-hour day; in flower, 800–1000 µmol/m²/s PPFD on a 12-hour cycle yields a 45–60 DLI. Some phenotypes tolerate up to 1100–1200 µmol/m²/s with CO2, but watch for foxtailing and terpene volatilization if heat rises. Keep light distance and even distribution consistent to avoid stretching or larf.
Substrate choice is flexible: coco/perlite blends, living soil, and high-porosity peat mixes all perform well. In coco, target a root-zone pH of 5.8–6.2; in soil, 6.2–6.8 keeps micronutrients available. Runoff EC in veg is typically 1.2–1.8 mS/cm, climbing to 1.6–2.2 mS/cm mid-flower depending on cultivar appetite and environmental intensity. Maintain a Ca:Mg ratio near 2:1 and consider supplemental sulfur (20–30 ppm) in bloom to support terpene synthesis.
Nutrient guidelines by stage can be quantified for consistency. In veg, 120–180 ppm N, 60–90 ppm P2O5 equivalent, and 150–220 ppm K support rapid canopy development. In flower weeks 3–7, reduce N to 80–120 ppm and raise K to 250–320 ppm with adequate P (80–120 ppm as P2O5), magnesium at 50–80 ppm, and sulfur at 40–70 ppm. Late bloom (final 10–14 days) benefits from a lighter feed (EC 1.4–1.6) or a gentle taper to low-EC water to stabilize flavor; growers differ on full “flush,” but minimizing abrupt changes helps avoid stress.
Growth habit management is essential due to the 1.8–2.5× stretch after flip. Top once or twice in veg to encourage lateral branching and a flat canopy; initiate low-stress training early to spread the plant. A SCROG net or dual trellis provides support for extended spears and prevents lodging late in bloom. Defoliate in two light passes—once in late veg and again around day 21 of flower—removing no more than 20–25% of fan leaves each time to avoid stress.
Irrigation rhythm depends on substrate and pot size. In coco and soilless mixes, aim for frequent, smaller irrigations to 10–20% runoff, preventing salt accumulation and maintaining oxygenation. In living soil, allow light dry-backs to stimulate root foraging while avoiding severe drought that could trigger stress foxtails. Root temperatures around 68–72°F (20–22°C) optimize nutrient uptake and microbial activity.
Pest and disease management should be proactive given the longer flower window. The cultivar’s relatively open sativa flowers resist bud rot better than dense indicas, but powdery mildew can appear in cool, humid, stagnant pockets. An IPM program might include weekly scouting, sticky cards, and beneficials like Amblyseius swirskii or A. andersoni for thrips/mites. For disease suppression, consider Bacillus subtilis or Bacillus amyloliquefaciens foliars in veg, and discontinue foliar applications after week 2 of flower.
Outdoor cultivation thrives in regions with warm days, cool nights, and low autumn rainfall. Plant into the ground or 50–100 L fabric pots to support the tall frame and maximize root mass. Provide robust staking or trellising to manage wind and weight, especially in late October storms. Mulch heavily and feed with balanced organic top-dresses to maintain even nutrition through the long bloom.
Phenotype expectations typically split into two lanes. The Amnesia-leaning pheno finishes closer to 70–77 days with brighter lime-incense terps and a slightly airier flower. The Diesel-leaning pheno may need 77–84 days to fully ripen, rewarding patience with denser colas and a deeper fuel note. Select keepers by combining lab data (total terpene >2.0%, THC >20%) with sensory evaluation for the desired lime–fuel–incense balance.
Yield potential is strong when the plant is given space and support. Indoors under high-performance LEDs, 450–650 g/m² is a realistic target in SCROG, with dialed rooms occasionally pushing 700+ g/m². Outdoors, single plants in large containers or in-ground beds can yield 500–800 g with attentive training and late-season protection. Extract yields are attractive due to resin coverage, with live resin and rosin both benefiting from the strain’s terp density.
Harvest timing should be guided by trichome assessment and desired effect. For the most uplifting profile, harvest around cloudy with 5–10% amber trichomes; for a slightly heavier finish, 15–20% amber adds body. Pistils typically recede and darken from orange to copper near maturity, and calyxes visibly swell in the final 10–14 days. Avoid over-ripening, which can mute top-note terps and deepen the flavor into wood and pepper.
Post-harvest handling makes or breaks the terpene experience. Dry at 60°F (15.5°C) and 60% RH for 10–14 days with gentle airflow and darkness to preserve terpinolene and ocimene. Cure in airtight containers at 58–62% RH for 4–8 weeks, burping as needed to keep water activity near 0.58–0.62. Finished flower stores best in opaque, cool conditions; even modest heat and light can degrade citrus top notes within weeks.
Common troubleshooting includes stretch management, nutrient balance, and environmental control. If internodes stretch excessively in early bloom, reduce the day temperature-to-night differential and increase blue spectrum. If leaves claw or darken mid-flower, reduce nitrogen and verify root-zone EC. For terp loss, lower late-bloom canopy temperatures to 68–74°F (20–23°C) and ensure gentle, non-laminar airflow across colas.
Putting it together, this cultivar thrives under a steady hand: strong light, smart training, a considered feed, and patient finish. Growers who lean into its sativa architecture and plan for the stretch are rewarded with top-shelf, lime-fuel flowers of striking clarity. The combination of yield, aroma, and effect makes it a reliable headliner in craft rooms and a satisfying challenge for hobbyists. With KGBeans’ haze-first sensibility baked in, the key is patience—time in bloom elevates this cultivar from good to unforgettable.
