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Strain Profile: Amnesia Genetics, THC, Terpenes, Effects, Yield & More

  • Writer: Breeders Collective
    Breeders Collective
  • Dec 22, 2025
  • 17 min read
Amnesia Strain Information: Amnesia genetics, terpenes, cannabinoids, THC content, yield, growing information, and more. Buy Amnesia cannabis seeds at Breeders Collective cannabis seed bank.

Amnesia: The Energizing Haze Classic That Became a Global Cult Legend


Amnesia is one of the most iconic sativa-dominant strains in cannabis history. Known for its soaring, euphoric cerebral effects and bright, citrus-forward terpene profile, it became a defining cultivar across Europe and later around the world. Amnesia stands apart from modern dessert and candy strains by offering something entirely different: a powerful, uplifting, old-school sativa experience rooted in Haze genetics, with unmistakable brightness and intensity.


While newer exotics dominate today’s terpene trends, Amnesia remains one of the most respected and enduring classics — a strain that shaped entire markets, influenced generations of breeding, and became a cornerstone of European coffee shop menus.


Origins and Genetic Background

Amnesia’s history is layered, with several breeders contributing to its evolution. The strain is most commonly associated with Soma Seeds, though numerous respected Dutch breeders have worked with and refined Amnesia over the years.

The generally accepted lineage:


Amnesia is sometimes referred to as Amnesia Haze, particularly in Europe, where that naming convention is widely recognized.


Haze Influence

The Haze lineage provides the energetic, cerebral, and uplifting qualities Amnesia is famous for. It contributes citrus, spice, and the classic sativa sharpness.


Afghani Influence

Afghani genetics help anchor the strain, adding density, structure, and a subtle earthy depth beneath the bright sativa terpenes.


Thai and Jamaican Influence

These tropical landrace influences contribute the vibrant, electric high and the complex, floral-fruit aromatics.


Together, these components create the powerful, exhilarating hybrid that became synonymous with European sativa excellence.

Terpene and Aroma Profile

Amnesia is known for its bright, citrus-forward aroma layered with earthy and spicy undertones. Unlike modern fruit-candy strains, its terpene profile is sharp, floral, and intensely aromatic.


Common terpenes include:

  • Limonene

  • Myrcene

  • Terpinolene

  • Caryophyllene

  • Pinene


The resulting aroma is often described as:

  • Citrus zest

  • Lemon peel

  • Spicy incense

  • Earthy haze

  • Floral sweetness

  • Herbal sharpness


The terpene profile is bold and unmistakable — a classic example of the Haze category.


Cannabinoid Profile

Amnesia typically tests between 18 and 25 percent THC, though some modern variants can reach higher. Its potency feels amplified due to the energizing sativa terpenes and fast-onset cerebral effect.


CBD content is usually very low.


The strain became famous for its strong, long-lasting psychoactive intensity — not because of modern designer genetics, but through the strength of classic sativa chemistry.


Effects and Experience

Amnesia delivers a powerful sativa-leaning experience, often described as bright, uplifting, and intensely cerebral.


Mental Effects

The onset is rapid, delivering a wave of euphoria, mental stimulation, and emotional uplift. Many consumers describe:

  • Elevated mood

  • Enhanced focus

  • Creative stimulation

  • Sensory sharpening

  • A bright, energetic headspace


The name “Amnesia” was originally a tongue-in-cheek reference to its intense, immersive high that can sometimes make users forget what they were doing — a hallmark of classic Haze strains.


Physical Effects

The physical effects are mild compared to the mental intensity. Many describe:

  • Light relaxation

  • Gentle body ease

  • Functional energy


This makes Amnesia a standout daytime cultivar, especially in settings where mental clarity and creativity are valued.


Phenotypes and Expressions

Because Amnesia has been bred, refined, and reproduced widely across Europe, many phenotype expressions exist.


Common visual traits include:

  • Light lime-green coloration

  • Long, wispy sativa structure

  • Dense but elongated calyx formation

  • Thick trichome coverage

  • Bright citrus-haze aroma


Some phenotypes lean sharper and spicier, while others are sweeter and more floral.


Descendants and Influence

Amnesia is one of the most influential sativa-dominant strains in modern cannabis breeding, especially in Europe.


Notable descendants include:


Its energetic profile, high terpene output, and long-lasting effects make it a staple building block for modern sativa breeding.


Cultural Significance

Amnesia’s impact on global cannabis culture is substantial. Its role includes:

  1. Becoming one of the defining strains of Dutch coffee shop culture.

  2. Shaping Europe’s preference for bright, cerebral sativas.

  3. Influencing numerous Haze-based hybrids across the 2000s and 2010s.

  4. Remaining a top seller for decades thanks to its reliable effect and iconic flavor.

  5. Serving as a counterbalance to today’s dessert- and candy-dominant strains.


Amnesia represents an era of cannabis where electric sativas and Haze-forward terpenes defined quality. Its legacy continues, both as a classic and as a foundation for new high-energy hybrids.


Below are some stand out Amnesia cannabis seed varieties available at Breeders Collective cannabis seed bank: Amnesia Flash Feminised by Anesia Seeds

Amnesia Flash Feminised by Anesia Seeds
From£48.00
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Amnesia Flash by Anesia Seeds is an Indica-dominant feminised photoperiod strain based on a refined Amnesia selection, carrying a genetic balance of roughly 80% Indica and 20% Sativa and bred to combine high potency, rapid flowering and heavy yields. Flowering takes around 65 days indoors, with outdoor harvests finishing around mid-October, and plants remain manageable in size at approximately 100–140 cm indoors and 150–200 cm outdoors while developing a compact, bushy structure with short internodes and strong resistance to mould and common pests. Large, cone-shaped buds form densely along the branches and become heavily coated in sticky resin, supporting THC levels reported around 27% alongside a notable overall cannabinoid profile. Effects are powerful and long-lasting, blending deep physical relaxation with a clear, alert and active mental high that can feel intense for less experienced users. The aroma is pronounced and perfumed, dominated by floral notes layered with warm spice, while the flavour mirrors this profile with a soft floral sweetness on the inhale followed by a sharp, peppery, chilli-like spice on the exhale. Under good indoor conditions yields can reach up to around 700 g/m², and in warm, sunny outdoor environments plants are capable of producing up to approximately 1,000 g per plant, with slightly extended flowering often enhancing resin production and overall potency.


Amnesia Flash Auto by Anesia Seeds
From£26.50
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Amnesia Flash Auto by Anesia Seeds is a feminised autoflowering strain developed from a refined Amnesia selection and adapted into a fourth-generation automatic format, carrying an approximate genetic balance of 75% Indica and 25% Sativa. Designed to retain the power, flavour and resin output of the original while offering a much faster lifecycle, it completes its entire seed-to-harvest cycle in around nine weeks without reliance on light schedules. Plants remain compact and manageable, typically reaching 70–110 cm indoors and 80–120 cm outdoors, while producing vigorous growth with long side branches heavily loaded with dense, resin-rich buds that become thickly coated in trichomes and show striking orange resin tones against light green flowers near maturity. THC levels are reported around 19%, delivering a long-lasting effect that blends clear mental stimulation with deep physical relaxation. The aroma is strongly floral with a sharp spicy edge, and the flavour follows suit with soft, flowery tones on the inhale followed by a pronounced peppery, chilli-like bite on the exhale. Indoors, yields can reach up to approximately 550 g/m² under good conditions, while outdoor plants typically return around 150–200 g each. The strain is resilient, easy to manage and well suited to small grow spaces, balconies and discreet outdoor settings, thriving particularly well in well-aerated substrates, with added coco coir often supporting faster development and overall plant health.


Amnesia Feminised By Seedstockers
From£17.00
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Amnesia Feminized by Seedstockers is a sativa-dominant photoperiod strain created from a cross of Outlaw Amnesia and Super Silver Haze, bred to deliver exceptional potency, classic Haze character and above-average yields. Flowering takes approximately 11 weeks, during which plants develop medium-to-tall structures depending on conditions and produce large, resin-coated buds with a strong terpene presence. THC levels typically range between 23% and 24%, resulting in a powerful, long-lasting and intensely psychedelic effect that can include temporary memory loss during the high, making it more suitable for experienced users. The aroma and flavour profile is distinctly sour and spicy, offering a traditional Haze sensory experience that remains consistent from scent to taste. Adaptable to both indoor and outdoor cultivation, the strain performs best in environments that accommodate its longer flowering period, rewarding patient growers with robust harvests, strong resin production and a high that reflects the combined strength, flavour and cerebral intensity of its parent genetics.


Sensi Amnesia Auto
From£8.50
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Sensi Amnesia Auto by Sensi Seeds is an autoflowering feminised hybrid composed of approximately 50% sativa, 20% indica and 30% ruderalis genetics, created from a diverse lineage that includes Jamaican Pearl, Hawaiian Indica and Afghani #1 and designed for ease of cultivation across a wide range of climates. The autoflowering trait removes the need for light cycle changes, while feminised seeds simplify growing further, making this variety suitable for both beginners and experienced cultivators, particularly in cooler environments. Plants develop a conical structure with a slender top and bushy base, producing compact, resinous buds and reaching around 120 cm indoors and up to 210 cm outdoors. The full cycle typically lasts 10 to 12 weeks from germination to harvest, which is relatively long for an autoflower but rewarded with moderate yields and stable performance, and the strain responds well to common training techniques such as SOG, SCROG and lollipopping. Effects are driven by the sativa influence, delivering an uplifting, awakening and cerebral high that feels euphoric and energetic, supported by a gentle, calming physical undertone from the indica component, often described as sociable, creative and mentally stimulating. THC levels are high with low CBD, and the aroma and flavour profile is distinctly tropical and fruity, characterised by tangy citrus notes and impressions of pineapple and exotic fruit that intensify as the plants mature, resulting in a balanced, versatile strain that combines approachable cultivation with a bright, expressive sensory and effect profile.


Amnesia Feminised By World Of Seeds
From£24.00
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Amnesia by World of Seeds is a feminised, sativa-dominant photoperiod hybrid with a genetic composition of approximately 70% sativa and 30% indica, created from a complex lineage combining Thai landrace genetics with Skunk, Cinderella 99 and Jack Herer, and bred for high productivity, strong cerebral effects and a distinctive incensed flavour profile. With THC levels around 21%, it delivers a long-lasting, uplifting and energetic high that is cerebral, euphoric and creativity-enhancing, making it well suited to daytime use and mentally focused activities. Plants show tall, vigorous growth and a tendency to stretch, producing dense, resin-rich buds that benefit from training techniques such as LST, topping or SCROG to manage height and maximise yields. Flowering takes approximately 60–70 days indoors, where yields can reach around 500 g/m², while outdoor plants grown in warm climates can produce up to about 800 g per plant and are ready for harvest by late October. The aroma is intense and aromatic, dominated by incensed, earthy tones layered with citrus and spice, and the flavour follows smoothly with a refined incense base accented by subtle lemon, herbal and spicy notes that linger on the palate. This strain has also earned recognition for its quality, taking second place in the indoor category at La Bella Flor Malaga in 2009, and stands out as a high-yielding, flavour-rich option that balances classic sativa stimulation with modern resin production and bud density.


Amnesia Haze Auto by AutoSeeds
From£19.00
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Amnesia Haze Auto by Auto Seeds is a feminised autoflowering strain that combines the classic Amnesia Haze profile with ruderalis genetics to deliver a faster, more compact plant while preserving its uplifting, creative character. With an approximate genetic balance of 80% sativa and 20% indica, it completes its lifecycle in under 12 weeks from seed and typically reaches a height of around 100–140 cm, making it suitable for both indoor and outdoor cultivation. THC levels generally range between 16% and 19%, producing a clear-headed, energising and long-lasting effect that enhances creativity, focus and sociability without becoming edgy or overwhelming. The aroma is bright and zesty, dominated by citrus with floral notes and a subtle pine undertone, while the flavour follows with orange-citrus on the inhale and deeper citrus tones with a hint of pine on the exhale. Plants develop chunky, sativa-leaning buds coated in frosty resin, often showing foxtail-like formations as flowering progresses, with vibrant green flowers and pronounced orange pistils. Indoors, growers commonly use extended light schedules such as 20/4, and gentle techniques like low-stress training or ScrOG can help manage structure, while high-stress methods are best avoided due to the short vegetative phase. Under good conditions, indoor yields typically reach around 400–500 g/m², offering a practical balance of speed, manageable size and classic citrus-driven Amnesia Haze expression.


Amnesia Haze Regular By Nirvana Seeds
£27.00
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Amnesia by Nirvana Seeds is a regular, sativa-dominant photoperiod hybrid with an approximate genetic ratio of 80% sativa and 20% indica, bred from South Asian Indica and Cambodian landrace genetics and recognised for its exceptional productivity, sharp citrus profile and uplifting effects, including a Sativa Cup win in 2012. Flowering typically takes between 11 and 13 weeks, during which plants grow to a medium-to-tall stature with long branches that respond well to training techniques such as LST or ScrOG, while heavy, resin-rich colas may require support in the final stages of bloom. THC levels generally fall between 16% and 20%, producing a euphoric, focused and mood-enhancing cerebral high that is well suited to daytime use and creative or mentally demanding activities, though higher intake can lead to a more spaced-out experience. Yields are notably high for a sativa-leaning cultivar, commonly reaching around 550–650 g/m² under favourable indoor conditions, with best results achieved in Mediterranean-style climates or controlled grow environments. The aroma is dominated by bright citrus zest, orange and mandarin, while the flavour delivers a mix of lemon and tropical fruit layered over subtle earthy undertones, resulting in a classic, energising sativa expression that combines vigorous growth, abundant harvests and a distinctive citrus-led sensory profile.


Amnesia Feminised By Nirvana Seeds
From£14.50
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Amnesia by Nirvana Seeds is a feminised, sativa-dominant photoperiod hybrid with an approximate genetic ratio of 80% sativa and 20% indica, developed from a cross of South Asian Indica and Cambodian landrace genetics and recognised for its high yields, energetic cerebral effects and sharp citrus profile, including a first-place Sativa Cup win in 2012. Flowering typically takes between 11 and 13 weeks, during which plants grow to a medium-to-tall stature with vigorous branching and heavy bud formation that benefits from training methods such as LST or ScrOG, as well as staking during late flowering to support dense, resin-rich colas. THC levels generally range from 16% to 20%, producing a long-lasting, uplifting and mentally energising high that feels euphoric, focused and mood-enhancing, making it well suited to daytime use and creative or mentally demanding activities. Under optimal indoor conditions, yields can reach approximately 550–650 g/m², with particularly strong performance in warm, Mediterranean-style climates or controlled environments. The aroma is intensely citrus-driven, dominated by lemon zest and mandarin, while the flavour delivers layered notes of citrus, orange and tropical fruit balanced by subtle earthy undertones, resulting in a classic, high-yielding sativa hybrid valued for its combination of productivity, potency and a bright, expressive terpene profile.


Amnesia Auto by Double Seeds
From£29.95
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Amnesia Auto by Double Seeds is a feminised autoflowering hybrid created by crossing classic Amnesia genetics with Ruderalis, resulting in a fast-finishing, sativa-dominant plant with an approximate genetic balance of 80% sativa and 20% indica and a full seed-to-harvest cycle of around 11 weeks indoors or outdoors. Plants grow to a medium height with a traditional Christmas tree structure and strong lateral branching, producing dense, frosty colas heavily coated in resin and trichomes. THC levels are reported to reach up to 25%, delivering a powerful, clear-headed and psychoactive cerebral effect that feels energetic, euphoric and long-lasting, making it well suited to creative or stimulating daytime use. The aroma is pungent and earthy with pronounced spicy Haze undertones, while the flavour is herbal and slightly sweet with a warm, peppery finish. Indoors, yields typically range from approximately 400 to 650 g/m² under favourable conditions, while outdoor plants can produce around 100 to 200 g per plant. Thanks to its autoflowering nature, flowering begins without light cycle changes, and the strain responds well to light training techniques, offering an accessible, high-potency option for growers seeking speed, strong effects and a bold, earthy-spice sensory profile.


Amnesia Haze Feminised By PowerStrains
From£7.99
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Amnesia Haze by PowerStrains Seeds is a feminised, sativa-dominant photoperiod hybrid with an approximate genetic balance of 70% sativa and 30% indica, developed from a complex lineage of Thai, Afghan and Hawaiian genetics and renowned for its potency, productivity and classic haze character. Flowering takes around 10 to 11 weeks, during which plants grow vigorously to heights of roughly 100–150 cm indoors and 170–210 cm outdoors, responding well to training techniques to manage structure and maximise light penetration. THC levels are reported between 20% and 25%, producing a strong, clear-headed cerebral high that feels energetic, euphoric and sociable, with an intensity that can be overwhelming for less experienced users. The aroma is sharp and zesty, dominated by citrus notes layered over fresh, earthy haze undertones, while the flavour delivers sour lemon and citrus zest that lingers on the palate. Although it requires patience due to its flowering time, Amnesia Haze rewards growers with very high yields of resin-coated, potent buds when cultivated indoors or in warm, sunny outdoor or greenhouse environments, making it a standout choice for those seeking a classic, high-powered sativa with proven performance and a bright, citrus-driven profile.


Amnesia Feminised by Advanced Seeds
From£7.10
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Amnesia by Advanced Seeds is a feminised, sativa-dominant photoperiod strain bred from classic Amnesia heritage and valued for its vigorous growth, strong citrus-incense aroma and highly stimulating cerebral effects. Flowering takes approximately 9–10 weeks indoors, with outdoor harvests ready around mid-October, and plants display energetic stretch while remaining manageable at roughly 70–150 cm indoors, though outdoor specimens can reach 250–350 cm in warm, sunny climates. THC levels are reported at around 18%, delivering a powerful, euphoric and mentally uplifting high that promotes creativity and focus. Buds are long, resin-rich and aromatic, expressing bright lemon notes layered with spicy herbal and incense tones that carry through clearly into the flavour. The strain is naturally resistant to pests and mould, responds well to training techniques, and is straightforward to cultivate in both indoor and outdoor environments. Under good conditions, yields typically reach approximately 500–600 g/m², making Amnesia a reliable and productive option that combines classic sativa character with ease of cultivation and consistent performance.


Amnesia Auto Feminised By Seedstockers
From£17.00
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Amnesia Autoflower by Seedstockers is a sativa-dominant autoflowering strain developed from a cross of Amnesia Haze and Auto Haze, bred to deliver classic Haze potency, sour-spicy flavour and strong yields in an easy-to-grow format. Completing its full life cycle in approximately 11 weeks from seed to harvest, it remains medium in height and adapts well to a range of indoor and outdoor conditions, making it suitable for growers of all experience levels. THC levels are reported to range between 23% and 26%, producing a powerful, active and uplifting effect with a pronounced cerebral Haze character. Buds are dense, highly resinous and rich in cannabinoids, releasing a pungent aroma dominated by sour and spicy notes that carry through directly into the flavour. Indoors, plants perform well under extended light schedules such as 20 hours per day and can produce high yields, including several hundred grams per plant under optimal hydroponic conditions, while remaining forgiving and resilient in different growing media. Combining strong potency, classic Haze sensory traits and impressive autoflower productivity, Amnesia Autoflower stands out as a reliable option for those seeking an intense, uplifting experience with minimal cultivation complexity.


Amnesia Feminised By Vision Seeds
From£22.50
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Amnesia by Vision Seeds is a predominantly sativa strain with an approximate genetic balance of 80% sativa and 20% indica, derived from Amnesia Haze genetics and bred for a clear, social and uplifting cerebral effect. Flowering takes around nine weeks, with outdoor harvests typically falling in October, and plants remain compact indoors at roughly 80 cm while reaching up to 200 cm outdoors under favourable conditions. Buds are dark and lime green, compact in structure and densely covered in crystals, with abundant hairs set deep within the flowers. The aroma is initially subtle during growth but becomes distinctly floral and hazy once consumed, carrying through gently into the flavour. Effects are clear-headed, social and mentally stimulating, though relatively short-lived compared to heavier sativa hybrids, and the strain is often selected for relief from anxiety, depression, migraines and nausea. Indoor yields average around 450 g/m², while outdoor cultivation can produce up to approximately 600 g/m², making Amnesia a balanced option that combines manageable growth, consistent production and a bright, approachable sativa experience.


Amnesia Feminised by Super Strains
From£40.00
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Amnesia by Super Strains is a feminised, sativa-dominant photoperiod hybrid with an approximate genetic ratio of 80% sativa and 20% indica, created from a cross of Afghan and Neville’s Haze and long regarded as a staple in Dutch coffee shops due to its potency, productivity and consistent performance. Indoors, flowering typically completes in around 8–9 weeks, while outdoor plants finish closer to 10 weeks, producing medium-sized plants that reach up to about 150 cm indoors and slightly taller outdoors, with a balanced structure that combines sativa vigour with indica manageability. Yields indoors commonly range from 450–500 g/m², with generous outdoor harvests possible under favourable conditions. The effects are strong, cerebral and long-lasting, delivering an intense euphoric high that can become deeply introspective and relaxing, particularly at higher doses, making it more suitable for experienced users. The aroma is sweet and citrus-forward with earthy, hazy undertones, while the flavour follows with sweet, fruity notes layered with subtle spice and herbal nuances. Afghan genetics contribute resilience, resin production and structural stability, while Neville’s Haze adds aromatic complexity, uplifting sativa intensity and mental depth, resulting in a powerful, award-associated hybrid that balances manageable growth with exceptional strength and a refined, haze-influenced sensory profile.


Original Amnesia Feminised by Silent Seeds
From£26.00
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Original Amnesia by Silent Seeds is a feminised, sativa-dominant photoperiod hybrid with an approximate genetic balance of 70% sativa and 30% indica, created by crossing Original Amnesia with itself to preserve the authentic characteristics of this iconic lineage. Flowering completes in around 65 days, making it notably fast for a sativa-leaning cultivar, while plants display vigorous, tall growth with a slender structure, medium internodal spacing and strong branching, reaching up to 350 cm outdoors in warm, sunny climates. Yields are very high, with indoor harvests reaching up to approximately 600 g/m² and outdoor plants capable of producing up to around 1,200 g per plant, supported by elongated, compact buds densely coated in resin and showing strong natural resistance to mould and pests. THC levels typically range between 15% and 23%, delivering a powerful, long-lasting cerebral effect that begins with an energetic, euphoric lift and gradually settles into a more relaxed physical sensation, making it suitable for creative, social or introspective use depending on dosage. The aroma is complex and pronounced, combining citrus and classic haze notes with cedar, incense and spice, while the flavour follows with a sweet, fruity profile layered with vibrant citrus and woody undertones. Adaptable to soil, coco and hydroponic systems and responsive to techniques such as SOG, SCROG and low-stress training, Original Amnesia offers a combination of speed, productivity, stability and a refined sensory profile that reflects its preserved, classic sativa heritage.


Amsterdam Amnesia Feminised By Dutch Passion
From£35.65
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Amsterdam Amnesia by Dutch Passion Seeds is a feminised, sativa-dominant photoperiod strain with an approximate genetic balance of 70% sativa and 30% indica, bred as a refined expression of original Amnesia Haze genetics and selected for potency, flavour, yield and improved reliability. Flowering indoors takes around 9–10 weeks, during which plants show vigorous growth and notable stretch, developing tall, elegant structures with elongated colas, good airflow and strong resistance to pests, including spider mites. Buds are dense and heavily coated in resin, producing a sharp citrus aroma dominated by fresh lemon zest with subtle herbal and earthy undertones, while the flavour mirrors this profile with bright citrus up front followed by light spice and earth on the exhale. THC levels are consistently high, often reaching into the upper 20% range, delivering a fast-acting, long-lasting cerebral effect that is uplifting, energetic and mentally clear, well suited to daytime use, creative work and social settings. Under optimal indoor conditions, yields are very high, with plants responding well to canopy management techniques such as topping or low-stress training to control height and maximise production, while outdoor cultivation performs best in warm climates where plants can reach impressive size and productivity. Combining classic Amnesia character with modern structure, resilience and output, Amsterdam Amnesia offers a reliable, high-performance option for growers seeking strong sativa effects and a pronounced citrus-driven profile.


Amnesia Ryder Autoflower By World Of Seeds
From£24.00
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Amnesia Ryder by World of Seeds is a feminised autoflowering, mostly sativa strain created by crossing the breeder’s established Amnesia genetics, based on Skunk, Cinderella 99, Jack Herer and Thai, with ruderalis to introduce automatic flowering while preserving potency, flavour and resin production. Completing its full cycle in approximately 75–80 days from germination, it grows to a compact height of up to around 120 cm and develops dense, resin-covered buds with a strong citrus-forward aroma accented by light spice. THC levels reach about 21%, producing a long-lasting, energetic and uplifting cerebral effect that supports creativity, productivity and daytime use. The flavour is fresh and tangy, led by bright citrus notes with subtle earthy undertones and a gentle herbal-spice finish. Indoors, Amnesia Ryder performs well under extended light schedules such as 20/4 and can yield up to approximately 600 g/m² under optimal conditions, while outdoor plants typically produce around 200 g per plant depending on environment. Thanks to its autoflowering nature, it does not rely on light cycle changes and can be grown year-round in suitable climates, allowing for multiple harvests per season, making it a fast, high-yielding and accessible option for growers seeking classic Amnesia effects in an easy-to-manage format.


Amnesia Fast Feminised by Advanced Seeds
From£7.10
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Amnesia Fast by Advanced Seeds is a feminised, mostly sativa photoperiod strain developed as a fast-flowering selection of classic Amnesia genetics, retaining the familiar citrus-incense character and stimulating effects while significantly reducing flowering time. Indoors, flowering completes in approximately 65–70 days, with outdoor harvests ready by early October, and plants remain compact and manageable at around 80–100 cm indoors while reaching roughly 200–250 cm outdoors. THC levels are reported at around 18%, producing an energetic, clear-headed and uplifting cerebral effect that reflects its sativa-led profile. Buds are heavily coated in resin and sugar leaf, releasing a bright lemon aroma layered with light incense and subtle spice, which carries through clearly into the flavour with a clean citrus base and warm aromatic undertones. Under good conditions, yields typically range from approximately 450 to 550 g/m², and the strain’s natural resistance to pests and mould, combined with its vigorous yet controlled growth, makes it easy to cultivate in both indoor and outdoor environments. By combining faster finishing times with reliable productivity and the classic Amnesia sensory and effect profile, Amnesia Fast offers a practical and dependable option for growers seeking speed without sacrificing quality.


Browse the full collection of Amnesia cannabis seeds available at Breeders Collective cannabis seed bank here.

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