Blue Amnesia cannabis seeds packaging — Royal King Seeds UK
Sativa
THC 18%
🌙 Sleep Aid
SativaFeminisedIn Stock

Blue Amnesia Feminised

Feminised PhotoperiodSee Lab Report →

Blue Amnesia Feminised cannabis seeds for UK growers. Sativa · 18% THC · relaxed, energetic, calm. Discreet UK delivery, priced in GBP.

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£10.18
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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified UK grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-05 on 225 seeds.

Germination rate: 99.2% (n=225)
Last QC test date: 2026-09-05
Indoor yield: 402-518 g/m² (avg across 14 verified grower reports)
Outdoor yield: 664-874 g/plant (avg across 9 verified grower reports)

About Blue Amnesia Feminised

Where you grow Blue Amnesia in Britain matters less than when you start it. This is one temperate maritime climate with a real north-south gradient: the south coast opens and closes its season around a fortnight either side of the central belt or upland Wales. Heat is almost never the constraint here. The wet finish is — rain sitting in dense flower through late September and October is what starts botrytis, and it ends more British outdoor crops than every insect on the plot combined. That puts the 10 weeks flowering window and the bud structure ahead of everything else on this page. Under lights none of it applies: daylength, temperature and humidity are yours to set, and Blue Amnesia can be run anywhere in the country on its merits.

The pressures on a British grow are fairly predictable. Damp is the first of them: botrytis in dense flower from September on, answered with open bud structure and moving air rather than with a spray. Indoors it is spider mite and thrips that arrive, and humidity above 60% in late bloom is what turns a contained problem into a lost room. Outdoors in a wet spring the slugs take more seedlings than every insect put together, and they do it overnight.

Flavour, aroma and effect

Blue Amnesia arrives in stages. The first draw at 18% THC brings clean resin, like woodland after rain. The relaxed, energetic, calm character follows within minutes, arriving as sharpened attention. Colour reads brighter, music reads busier, and conversation wanders further than it would otherwise. It holds for two to three hours on a plateau rather than a spike. The limonene underneath adds a lift that stops it turning heavy.

Terpene breakdown

Primary: Pinene · Secondary: Limonene · Tertiary: Caryophyllene. This combination turns up often in cultivars that win things, and it is usually the one growers comment on when a jar is opened for the first time after curing. Pinene anchors the aroma, limonene occupies the middle, and caryophyllene sits behind both — which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Who does well with Blue Amnesia? Indoor growers who want the timeline under their own control. Outdoor growers who want to choose when flowering starts. Anyone with the room and the patience to veg it properly before flipping. Difficulty is rated intermediate, which means a moderate learning curve that rewards attention without demanding a laboratory.

Effects

😌Relaxed
72% of people reported feeling Relaxed
🤑Energetic
64% of people reported feeling Energetic
🧘Calm
60% of people reported feeling Calm
😊Happy
51% of people reported feeling Happy
🤩Creative
50% of people reported feeling Creative
😎Uplifted
38% of people reported feeling Uplifted
🤗Euphoric
33% of people reported feeling Euphoric
🧠Focused
28% of people reported feeling Focused
🗣️Talkative
16% of people reported feeling Talkative

Strain Type

Indica 10%Sativa 90%

Strain Data Sheet

🧬THC18% - 23% (Medium-High)
🌿LineageSativa-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminised Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height1.20-1.50 m
⚖️YieldHigh
🏠Yield Indoor450-550 g/m2
🌳Yield Outdoor400-600 g/plant
⏱Flowering Time10 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable United Kingdom legislation.
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Blue Amnesia Feminised
royalkingseeds.co.uk
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Blue Amnesia Feminised — Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.

Stabilisation Level
F5 IBL
Generations
5+
Breeding Programme
Royal King Genetics IBL — heritage cultivar restabilisation
Stabilisation Notes — What This Means for Your Grow

Five generations of inbred selection on the original 1990s heritage Blue Amnesia cuts. We were not chasing a redesign — we locked the cerebral terpene profile that earned this cultivar its reputation. Whatever the next pack throws is what the last pack threw.

Breeding Goal

Restabilise a 1990s heritage cultivar to contemporary uniformity standards.

Selection Focus

Chosen for sativa vigour, bud-to-leaf ratio and the distinctive terpene character of the original cut.

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

Last Batch QC Verified
31 August 2026· 99%+ germination