Alaskan Ice cannabis seeds packaging — Royal King Seeds UK
Sativa
THC 20%
🎨 Creative
SativaFeminisedIn Stock

Alaskan Ice Feminised

Feminised PhotoperiodSee Lab Report →

Alaskan Ice Feminised cannabis seeds for UK growers. Sativa · 20% THC · energetic, calm. Discreet UK delivery, priced in GBP.

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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 2026-08-31 on 175 seeds.

Germination rate: 96.1% (n=175)
Last QC test date: 2026-08-31
Indoor yield: 376-526 g/m² (avg across 12 verified grower reports)
Outdoor yield: 626-910 g/plant (avg across 7 verified grower reports)

About Alaskan Ice Feminised

Cured properly and opened cold, Alaskan Ice leads with pinene: sharp green resin — a conifer hedge cut on a damp morning. Underneath it limonene adds a bright edge that keeps the nose from turning heavy, and it reads mid-palate rather than on the first pass. This 6/94 sativa tests at 20% THC, but potency is the least interesting number here: what separates Alaskan Ice from the others on the same shelf is how the aroma behaves across a cure, and that is a question of storage and patience rather than genetics alone.

Growing it for the nose rather than the scales

Chasing terpene expression in Alaskan Ice pulls against chasing yield, and it is worth knowing which one you are doing before you start. The Pinene/Limonene/Caryophyllene profile does its best work in living soil, where the microbial side produces secondary compounds a bottle cannot. That is easier here than it sounds: decent peat-free compost and worm castings are a garden centre purchase in most British towns.

Through the 9 weeks of bloom, stop foliar spraying after week two — anything landing on developing trichomes is still there at harvest and you will taste it. The final three weeks decide which terpenes dominate the cured flower: nights held at 16-18°C push pinene forward, while a warmer finish protects the lighter caryophyllene notes at the top.

The cure is where most of the flavour is lost in this country, and the reason is the weather. A 10-14 day hang wants 15-18°C at 55-60% relative humidity, which a British autumn will not give you in a spare room — a temperature-controlled cupboard or a wine fridge set to 16°C solves it for the price of one wasted harvest. Then into glass, burped twice a day for the first fortnight. The limonene layer that makes this one worth growing does not appear until somewhere between weeks three and four in the jar.

Flowering: 9 weeks. Indoor yield: up to 800 gr/m2. Outdoor yield: 1000 gr/plant. Rated intermediate difficulty.

Flavour, aroma and effect

Alaskan Ice arrives in stages. The first draw at 20% THC brings clean resin, like woodland after rain. The 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 Alaskan Ice? 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

🤑Energetic
71% of people reported feeling Energetic
🧘Calm
67% of people reported feeling Calm
😊Happy
58% of people reported feeling Happy
🤩Creative
56% of people reported feeling Creative
😎Uplifted
45% of people reported feeling Uplifted
🤗Euphoric
40% of people reported feeling Euphoric
🧠Focused
35% of people reported feeling Focused
🗣️Talkative
23% of people reported feeling Talkative
💪Motivated
24% of people reported feeling Motivated

Strain Type

Indica 6%Sativa 94%

Strain Data Sheet

🧬THC20% - 23% (High)
🌿LineageSativa-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminised Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height120 – 200 cm (typical)
⚖️YieldTypical for type
🏠Yield Indoorup to 800 gr/m2
🌳Yield Outdoor1000 gr/plant
⏱Flowering Time9 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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Alaskan Ice Feminised
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🛡️Aluminium interior lining
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Alaskan Ice 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
F4
Generations
4+
Breeding Programme
Filial Stabilisation (F4) — four-generation selection
Stabilisation Notes — What This Means for Your Grow

F4 stabilisation on Alaskan Ice. Each generation we cull aggressively against off-types — the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Pin long-flowering uniformity consistency across the Alaskan Ice population.

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
3 September 2026· 99%+ germination