Amnesia Strain Review — Effects, THC, Yield & Where to Buy Seeds

Amnesia is one of the most influential sativa-dominant strains in modern cannabis history. Bred from Jamaican, Hawaiian, and Afghani genetics, it built its reputation in Amsterdam coffee shops in the late 1990s and has since become a benchmark for high-THC haze hybrids worldwide. This review covers what Amnesia actually delivers — effects, growing characteristics, terpene profile, and where to source quality Amnesia feminized seeds in the USA.

Amnesia Strain at a Glance

Attribute	Specification
Type	Sativa-dominant hybrid (70/30)
THC	20-22%
CBD	Below 1%
Genetics	Jamaican × Hawaiian × Afghani × Cinderella 99
Flowering Time	10-11 weeks
Indoor Yield	500-600 g/m²
Outdoor Yield	600-800 g/plant
Dominant Terpenes	Myrcene, Pinene, Limonene

Effects — What Amnesia Actually Feels Like

Amnesia hits cerebral first. Within 5-10 minutes the mental space brightens, thoughts move quicker, and the user reports an energetic and creative head buzz. The effect peaks at 20-30 minutes and holds for 2-3 hours before tapering. Unlike heavier sativas, Amnesia produces minimal anxiety at moderate doses — the Afghani parentage adds enough grounding to keep the experience focused rather than scattered.

At higher doses, Amnesia becomes intensely psychoactive — the strain earned its name from the slight memory-fog effect that some users report at 3-4 hits in a session. This is a strain better suited for daytime creative work, social situations, or productive task-focused sessions than for evening relaxation.

Growing Amnesia Cannabis Seeds

Amnesia is rated intermediate-to-difficult for new growers. The long flowering window (10-11 weeks indoor) and tall sativa structure require space management, and the strain is sensitive to nutrient overfeeding compared to more forgiving indica-dominant hybrids. That said, growers who get the basics right are rewarded with some of the heaviest yields available from any sativa-dominant genetic line.

For indoor cultivators, plan for 4 weeks of vegetative growth followed by 10-11 weeks of flowering in a 5x5 tent. ScrOG training is highly recommended to manage the height stretch. Outdoor in California, Oregon, and warmer southern climates, Amnesia regularly produces 600-800 grams per plant when started in May and harvested in late October.

Amnesia performs best in soil with moderate-strength feeding. Avoid heavy nitrogen during flower — the strain shows nutrient burn faster than most. Maintain temperature in the 70-78°F range with humidity at 50-55% during late flower to bring out the dominant Pinene and Limonene terpenes that define the strain's fragrance.

Amnesia vs. Other Top Sativa Strains

Compared to Mystic Kush and Jack Herer, Amnesia delivers a more cerebral and slightly longer-lasting head experience with comparable THC potency. Durban Poison is more energetic but lacks Amnesia's complex terpene profile. Super Lemon Haze shares Amnesia's lemon-pine fragrance but typically has a shorter flowering window. For growers chasing pure cerebral effect with heavy yield, Amnesia remains the gold standard.

Terpene Profile and Flavor

Amnesia's terpene profile is dominated by Myrcene (earthy, slightly herbal), Pinene (sharp pine and conifer), and Limonene (bright citrus, especially lemon). On the inhale, expect lemon and pine forward with a peppery undertone from secondary Caryophyllene. The exhale settles into earthy haze with a sweet floral finish. The flavor experience is one of Amnesia's strongest selling points — even users who do not enjoy the high effects often appreciate the taste.

Where to Buy Amnesia Seeds in the USA

Royal King Seeds USA stocks Amnesia Feminized seeds with our 95% germination guarantee and discreet shipping to all 50 states. Free delivery on orders over $150. We also offer the autoflowering version for growers wanting faster turnaround — see our autoflower collection for the auto variant if available.

Frequently Asked Questions About Amnesia Strain

What kind of high does Amnesia produce?

Amnesia produces a strongly cerebral, energetic, and slightly euphoric high lasting 2-3 hours. The head effect is dominant with mild body relaxation. At higher doses, users may experience the slight memory fog that gave the strain its name.

How much THC does Amnesia have?

Amnesia typically tests at 20-22% THC, though some phenotypes have measured up to 24% in optimized indoor conditions. CBD content is below 1%.

Is Amnesia good for beginners?

Amnesia is rated intermediate-to-difficult to grow due to its 10-11 week flower window, height stretch, and nutrient sensitivity. Beginners should consider starting with hardier strains like Northern Lights or White Widow before tackling Amnesia.

How long does Amnesia take to flower?

Indoor Amnesia takes 10-11 weeks of flowering. Outdoor harvest in the Northern Hemisphere is typically late October. The relatively long flower window is a trade-off for the strain's heavy yield potential.

What yield can I expect from Amnesia?

Indoor: 500-600 grams per square meter under quality LED or HPS lighting. Outdoor: 600-800 grams per plant in optimal conditions (full sun, warm climate, 5+ months of growing season).

What does Amnesia smell and taste like?

Amnesia features a sharp lemon and pine aroma with earthy haze undertones. The flavor on inhale is citrus-forward with peppery Caryophyllene; the exhale settles into sweet, slightly floral haze.

Is Amnesia indica or sativa?

Amnesia is sativa-dominant (approximately 70% sativa, 30% indica). The dominant Jamaican and Hawaiian genetics push the strain firmly into the energizing daytime category.

Can I grow Amnesia seeds outdoors in the USA?

Yes — Amnesia performs excellently in California, Oregon, and other warm climates with long growing seasons. Northern states with shorter seasons should consider the autoflower version, which finishes in 8-10 weeks regardless of light schedule.

How does Amnesia compare to Amnesia Haze?

Amnesia and Amnesia Haze are often used interchangeably, though some breeders distinguish them as slightly different phenotype expressions. The differences are minor — both share the same parent genetics, similar terpene profile, and comparable effects.

Where can I buy Amnesia seeds in the USA?

Royal King Seeds USA carries Amnesia Feminized seeds with 95% germination guarantee and free US shipping over $150. See our full feminized seed collection for related sativa-dominant strains.