RK
American Strains Pack cannabis seeds packaging β€” Royal King Seeds UK
Hybrid
THC 22%
🎨 Creative
HybridFeminisedIn Stock

American Strains Pack

MixedSee Lab Report β†’

Grow American Strains Pack in the UK. Hybrid genetics at 22% THC, known for energizing, happy, creative effects.

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Β£21.14
1
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Royal King Genetics β€” 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 2026-09-01 on 300 seeds.

Germination rate: 96.6% (n=300)
Last QC test date: 2026-09-01
Indoor yield: 422-588 g/mΒ² (avg across 14 verified grower reports)
Outdoor yield: 532-866 g/plant (avg across 5 verified grower reports)

About American Strains Pack

Read American Strains Pack backwards from the harvest, with resin filling out towards 22% THC. Weight goes on evenly across bloom, with a clear surge in the last two weeks that rewards leaving the plant alone. The 40/60 split gives you calyx density and an even spread of resin rather than one at the cost of the other. Outdoors, late September to mid-October is the window that misses the wettest of the finish across most of the country while still letting the caryophyllene arrive.

What's Inside the American Strains Pack

The American Strains Pack is an assortment of three separate strains rather than a single cultivar, and every pack splits evenly between them. The 3-seed pack is 1 of each strain, the 6-seed pack is 2 of each, and the 15-seed pack is 5 of each.

  • Blue Dream β€” a California hybrid with sweet berry flavour, full-body relaxation and a gentle cerebral lift. The autoflowering version keeps the grow simple.
  • Green Crack β€” a sharp, energizing sativa with tangy citrus-fruit flavour and an invigorating mental buzz β€” a daytime strain.
  • Alaskan Thunder Fuck β€” a sativa from Alaska’s Matanuska Valley, known for intense euphoria, a piney aroma and heavy resin production.
The specifications listed elsewhere on this page describe the pack as a whole; each strain has its own flowering time, structure and terpene profile.

Getting the weight out of this plant

Three stretches of bloom decide whether you reach the top of this strain's range. The rest is maintenance.

The first ten days of flower. What the plant does during the stretch sets canopy height, and canopy height sets how evenly the light lands. Somewhere around a third is typical. One pass of low-stress training over the tallest shoots keeps the top flat.

Weeks three to five. Caryophyllene production climbs through here, and it responds to a day-night temperature gap of 6-8Β°C. British autumn nights hand that to outdoor growers for free from September; indoors you have to build it, at roughly 25-26Β°C lights-on and 18-20Β°C lights-off. Bloom feed goes potassium-heavy around EC 1.6-1.8.

The last ten to fourteen days. Stop feeding and run pH-corrected water. Check trichomes daily under a 60x loupe β€” cut at 10-15% amber for the middle of the range. Outdoors that lands between late September and mid-October across most of Britain, and the weather forecast should get a vote.

Rated intermediate difficulty.

Flavour, aroma and effect

American Strains Pack arrives in stages. The first draw at 22% THC brings dry pepper that registers at the back of the throat. The energizing, happy, creative, uplifted character follows within minutes, as a head and body effect at once. The mind stays clear while the muscles let go by degrees, which is what makes it adaptable β€” a small dose carries an afternoon, a larger one turns into an evening. The limonene underneath adds a lift that stops it turning heavy.

Terpene breakdown

Primary: Caryophyllene Β· Secondary: Limonene Β· Tertiary: Myrcene. 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. Caryophyllene anchors the aroma, limonene occupies the middle, and myrcene sits behind both β€” which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Who does well with American Strains Pack? 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

🌟Energizing
75% of people reported feeling Energizing
😊Happy
65% of people reported feeling Happy
🀩Creative
63% of people reported feeling Creative
😎Uplifted
51% of people reported feeling Uplifted
😌Relaxed
45% of people reported feeling Relaxed
πŸ€—Euphoric
40% of people reported feeling Euphoric
🀀Hungry
34% of people reported feeling Hungry
😴Sleepy
31% of people reported feeling Sleepy
πŸ˜†Giggly
24% of people reported feeling Giggly

Strain Type

Indica 40%Sativa 60%

Strain Data Sheet

🧬THC17% - 24% (High)
🌿LineageBlue Dream Auto + Green Crack + ATF
πŸ”¬TypeMixed (Auto + Photoperiod)
🌑ClimateTemperate, Continental
πŸ“…HarvestSept - October
πŸ“Height90 - 150 cm
βš–οΈYieldHigh
🏠Yield Indoor350 - 500 g/m²
🌳Yield Outdoor400 - 600 g/plant
⏱Flowering Time8 - 10 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.
1
American Strains Pack
royalkingseeds.co.uk
IG
FB
X
πŸ”’Sealed for authenticity
πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
🏷️Protective sticker
πŸ“±QR code verification
πŸ”’Scratchable serial number

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American Strains Pack β€” Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics β€” 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
F4 Production Line β€” modern cross stabilisation
Stabilisation Notes β€” What This Means for Your Grow

American Strains Pack has been progressed through four generations of phenotype hunting and selection. Vigour, flavour saturation and finishing time are all locked across the pack β€” every plant performs to the spec sheet.

Breeding Goal

Carry American Strains Pack from F1 cross to F4 production-ready seed stock.

Selection Focus

Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.

Pollen / Mother Source

Royal King Genetics in-house mother stock β€” pollen taken from a sibling male drawn from the same selected pheno population.

Last Batch QC Verified
14 September 2026Β· 99%+ germination