Amazonian cannabis seeds packaging — Royal King Seeds UK
Indica
THC 18%
🎨 Creative
IndicaFeminisedIn Stock

Amazonian Feminised

Feminised PhotoperiodSee Lab Report →

Amazonian Feminised — indica cannabis seeds suited to UK growing conditions. 18% THC with relaxed, euphoric, creative effects. Fast, discreet UK delivery.

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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 2026-09-10 on 500 seeds.

Germination rate: 98.4% (n=500)
Last QC test date: 2026-09-10
Indoor yield: 461-622 g/m² (avg across 17 verified grower reports)
Outdoor yield: 497-854 g/plant (avg across 8 verified grower reports)

About Amazonian Feminised

Will Amazonian finish outdoors in Britain? Yes, within the April to October season. The habit is compact enough to stay below a fence line, and the dense flower structure puts real weight on a small frame — which is also the reason airflow matters more here than it would in a drier place. Flowering completes inside the season, which puts harvest in September or October for most of the country.

What yield is realistic? We publish no per-strain yield figure for this cultivar, so treat any number you find elsewhere with suspicion. Pot size, light, feeding and training move the result far more than genetics do. At 18% THC with a myrcene-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 Amazonian

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 indica performs in both; the choice is about what you want out of it.

How does it handle a British summer? The dense foliage shades itself, which helps. Above 30°C growth stalls but the plant does not fold. Mulch the root zone and water before seven in the morning and heat stress stops being a factor in nearly every part of the country. 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 77/23 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 — at the price of accepting whatever the autumn does. Rated intermediate difficulty.

What Amazonian is actually like

Growers report relaxed, euphoric, creative, focused as the defining characteristics and our own notes agree. At 18% THC this indica sits where dose control starts to matter. A single bowl through a vaporiser at 185°C gives a manageable physical ease with the head still working, which is what most people want at the end of a day. Push the dose and it moves firmly towards sedation — the reason it tends to become a winter evening cultivar rather than an all-year one. The Myrcene/Humulene pairing leaves earth and faint sweetness on the palate, with fruit at the end.

Best suited to quiet evenings, a film, recovery after exercise, and the hour before sleep.

Terpene breakdown

Primary: Myrcene · Secondary: Humulene · Tertiary: Linalool. 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. Myrcene anchors the aroma, humulene occupies the middle, and linalool sits behind both — which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Amazonian suits growers with the basics in place. Understand pH, rough nutrient ratios and light cycles before you commit to it; it asks for competence rather than expertise. Photoperiod genetics leave plant size and harvest date under your control — veg longer for bigger plants, or flip early when space is short. The April to October season accommodates the bloom period comfortably for outdoor growers across the country.

Effects

😌Relaxed
72% of people reported feeling Relaxed
🤗Euphoric
67% of people reported feeling Euphoric
🤩Creative
63% of people reported feeling Creative
🧠Focused
55% of people reported feeling Focused
😴Sleepy
52% of people reported feeling Sleepy
😊Happy
38% of people reported feeling Happy
🤤Hungry
34% of people reported feeling Hungry
🧘Calm
26% of people reported feeling Calm
🌿Stress Relief
13% of people reported feeling Stress Relief

Strain Type

Indica 77%Sativa 23%

Strain Data Sheet

🧬THC18% - 22% (Medium-High)
🌿LineageIndica-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminised Indica
🌡ClimateCool–temperate / continental
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height90 – 120 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor400 – 500 g/m² (typical)
🌳Yield Outdoor400 – 600 g/plant (typical)
⏱Flowering Time7 – 9 weeks (typical)

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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Amazonian 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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Amazonian 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
F3
Generations
3+
Breeding Programme
Filial Stabilisation (F3) — advanced refinement
Stabilisation Notes — What This Means for Your Grow

A newer modern hybrid cross still being actively stabilised. F3 means three rounds of selection — the tight finish window is locked across the bulk of the pack, with a small variant subset under continued cull.

Breeding Goal

Stabilise Amazonian across three rounds toward F4 production-ready stock.

Selection Focus

Chosen for resin output, a low-slung stature and a clean indica terpene fingerprint.

Pollen / Mother Source

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

Last Batch QC Verified
22 September 2026· 99%+ germination