
Blue Amnesia Auto
Blue Amnesia Auto cannabis seeds for UK growers. Sativa · 18% THC · relaxed, energetic, calm. Discreet UK delivery, priced in GBP.
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 2026-09-06 on 375 seeds.
About Blue Amnesia Auto
Will Blue Amnesia finish outdoors in Britain? Yes, within the April to October season. Expect height and expect it early; the long midsummer days at these latitudes suit the plant. Give it room to stretch and tie it down rather than fighting it. Flowering runs 70 days, which puts harvest in September or October for most of the country.
What yield is realistic? 100 g/m2 indoors is achievable with competent LED lighting and attention to feeding. Outdoors, 200 g/plant is realistic in 50 litre pots or in prepared ground with full sun — and "full sun" is doing a lot of work in that sentence at these latitudes, so the position you pick in the garden matters more than the pot you buy. At 18% THC with a pinene-forward profile, the return on the effort is sound.
Is it forgiving? Reasonably. Anyone comfortable with pH, a feed schedule and a light timer will get a good result. It will not hold your hand, but it will not punish one missed watering either.
Further questions we get asked about Blue Amnesia
Which medium? For flavour, peat-free soil cut with about 30% perlite and amended slowly — fish, blood and bone, rock phosphate, seaweed meal, all of it available at any British garden centre. For weight, coco with fertigation at EC 1.4-1.8 through bloom. This sativa performs in both; the choice is about what you want out of it.
How does it handle a British summer? Better than most, because the open structure lets heat out. In a genuine heatwave you may see midday droop, with recovery by evening. Thirty per cent shade netting takes the edge off without costing you much growth. The more common British problem is the opposite one: a cold, wet July that never lets the plant dry out between waterings.
When do I switch to bloom feed? Inside the first week of visible pistils. The 10/90 balance shifts its demand quickly at the transition — phosphorus and potassium up, nitrogen down. Soil growers can top-dress with guano and sulphate of potash; coco and hydro should move to a low-nitrogen bloom formula straight away.
Indoors or outdoors? Both work, for different reasons. Indoors you own the flowering environment completely. Outdoors, across the April to October season, the plant gets a light intensity no domestic LED matches and can reach 200 g/plant — at the price of accepting whatever the autumn does. Flowering: 70 days. Indoor yield: 100 g/m2. Outdoor yield: 200 g/plant. Plant height: 100 cm. Rated intermediate difficulty.
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. How this profile survives the journey from flower to vapour depends on temperature. Low vaporisation, 180-188°C, keeps the limonene and caryophyllene audible over the pinene base. Run it hotter, or burn it, and the three collapse into one note — pleasant enough, but none of the complexity that made it worth choosing.
Who it suits
Who does well with Blue Amnesia? Balcony growers in flats from Brighton to Glasgow. Anyone wanting one quick outdoor crop rather than a long project. Indoor growers short of headroom. The autoflowering genetics run on their own clock, so there is no light schedule to manage, no anxiety about light leaks, and harvest comes 10-12 weeks from germination whatever the season is doing. Difficulty is rated intermediate, which means a moderate learning curve that rewards attention without demanding a laboratory.
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Blue Amnesia Auto — Breeder Information
Royal King GeneticsBred 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.
Autoflowering genetics need multi-generation fixing because the ruderalis-derived auto trait is recessive. Blue Amnesia sits at F5 — every plant in the pack autoflowers reliably and finishes inside a tight window.
Reach auto trigger and finish-window uniformity for the Blue Amnesia pack.
Chosen for clear-headed terpene expression, structural manageability and a finish that lands inside the published window.
Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.