XXX 420 cannabis seeds packaging, Royal King Seeds USA
Indica
THC 18%
πŸŒ™ Sleep Aid
IndicaFeminizedIn Stock

XXX 420 Feminized

S1 FeminizedLab Profile Available β†’

Well-balanced feminized indica with relaxed and sleepy effects and compact, resin-coated structure. Ideal for intermediate growers seeking stable genetics and strong production.

β—‰Flavor:Grape, musky kush, sweet spice

Best for:πŸŒ™EveningπŸ›‹οΈRelaxation😴Sleep Support
Intermediate Grower
🧬
THC
18%
⏱
Flower
7 - 9 weeks
βš–οΈ
Yield
High
🎯
Difficulty
Intermediate
πŸ“
Height
Medium
🌱
Grow
Indoor / Outdoor
πŸ’‘

Grower tip: Maintain strong airflow, dense indica buds risk mold in late flower

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$12.99USD

Premium stabilized genetics Β· germination guaranteed

βœ“Generates high production in both indoor and outdoor setups
βœ“Hits with clean relaxed effects that shine during evening
βœ“Indica-dominant genetics with stable, consistent phenotype

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πŸ”’Discreet Packaging
Popular strain, limited batches available
⭐Ships to all 50 US states discreetly

About XXX 420 Feminized

The genetic expression of XXX 420, a 65/35 indica, varies meaningfully across phenotypes. Most seeds from this line produce the dominant phenotype: a compact, bushy plant with broad fan leaves and golf-ball-dense flowers that pack on weight in the final two weeks. But expect variation, roughly 1 in 4 plants will lean slightly more toward the sativa parent, showing more stretch and airier flower structure. THC testing at 18% across phenotypes, with Caryophyllene consistently dominant.

Genetic Expression in the Grow Room

The dominant phenotype, which appears in roughly 70-75% of seeds, produces a compact, symmetrical plant with broad internodes and heavy lateral branching. Fan leaves are wide and dark green, typical of the indica heritage. Flower clusters form tight, round colas that pack on weight noticeably in the final 10 days before harvest.

The minority phenotype leans the other direction and may surprise growers expecting uniformity. Flowering completes in 9-11 weeks across phenotypes. Yield: 450-550g/mΒ² indoor, 400-600g/plant outdoor. Height: Short-Medium (2-3.5 ft). Rated intermediate, the phenotype variation adds a layer of interest without adding significant difficulty. Growing from feminized seeds.

Effects and Use

At 18% THC, XXX 420 delivers relaxed, sleepy, happy effects with a caryophyllene-influenced character. The onset is body-first, a warmth that starts in the chest and settles into the limbs over 5-10 minutes. At moderate doses, you remain conversational and present. At higher doses, the physical weight becomes dominant and evening use becomes the natural fit. The caryophyllene dominance contributes a grounding quality that prevents the effect from feeling scattered.

Terpene Profile

Dominant terpenes: Caryophyllene (primary), Myrcene (secondary), Bisabolol (tertiary). This combination produces a nose that develops complexity through the cure, expect the primary caryophyllene character to emerge first, with myrcene and bisabolol notes adding layers over 3-4 weeks in jars.

Who Should Grow XXX 420

Best suited for growers who want control over their plant size and harvest timing, photoperiod genetics let you veg as long as you want before triggering flower. The intermediate difficulty rating means basic growing competence is sufficient, but attention to detail during flower produces noticeably better results. Ships discreetly to all 50 US states with our germination guarantee.

Effects

😌Relaxed
72% of people reported feeling Relaxed
😴Sleepy
72% of people reported feeling Sleepy
😊Happy
58% of people reported feeling Happy
🀀Hungry
54% of people reported feeling Hungry
πŸ€—Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
πŸ’†Body High
24% of people reported feeling Body High
πŸ˜Άβ€πŸŒ«οΈSedated
21% of people reported feeling Sedated

Best For

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 65%Sativa 35%

Strain Data Sheet

🧬THC18% - 21% (Medium-High)
🌿LineageNorthern Lights Γ— Hindu Kush
πŸ”¬TypeFeminized Indica
🌑ClimateContinental, Temperate
πŸ“…HarvestLate September - Early October
πŸ“Height2.4 - 3.9 ft | 73 - 116 cm
βš–οΈYieldHigh
🏠Yield Indoor15.6 oz/ft² | 443 - 586 g/m²
🌳Yield Outdoor16 - 22 oz/plant | 443 - 636 g/plant
⏱Flowering Time7 - 9 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium US Genetics
Protective vial
Resealable +
Royal King Seeds sells seeds for souvenir and collectible purposes. Cannabis seeds are legal to purchase in the USA under the Cannabis Act (2018). Customers are responsible for understanding local laws.
1
XXX 420 Feminized
royalkingseeds.us
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FB
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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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XXX 420 Feminized, Cannabinoid & Terpene Reference

Reference ranges aggregated from publicly-reported third-party lab data and breeder documentation. Total THC reported as max-potential (THC + 0.877 Γ— THCA). Individual seed-lot expression may vary by 1-3 percent.

Total THC
18.1%
CBD
0.04%
Top Terpenes
Myrcene, Limonene, Caryophyllene

XXX 420 Feminized, Aggregated Grower Yield Reports

Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on XXX 420 Feminized feminized seeds. First-time growers should expect 70-85 percent of these numbers.

SetupYield
Outdoor, in-ground, full sun718g
5Γ—5 tent, 730W LED, ScrOG + topping598g

XXX 420 Feminized, Sourcing & Genetics

Release Era
Recent (post-2020)
Parent Genetics
Northern Lights Γ— Kush modern indica
Lineage Notes

XXX 420 Feminized was bred in Spain by a respected European seed bank and selected for stability across multiple climates before reaching the US market.

Recommended US Climate

Cold-tolerant; performs well in short-season Northern states (ME, VT, MN, WI). Indoor cultivation works anywhere.

XXX 420 Feminized, Breeder Information

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics , our internal breeding team. Every order is backed by our 95% germination guarantee. Read our full breeding process and about page.

Stabilization Level
BX2
Generations
3+
Breeding Program
Royal King Genetics Backcross Line, BX2 modern hybrid stabilization
Stabilization Notes, What This Means for Your Grow

Backcrossed twice to the dominant parental line. XXX 420 now expresses purple expression consistently across the population, what made the original cross interesting is preserved without the pheno-roulette of an unstabilized F1.

Breeding Goal

Fix parent-cut traits in XXX 420 without over-narrowing the population.

Selection Focus

Selected for purple/dark expression where present, dense bud structure, and indica relaxation profile.

Pollen / Mother Source

Royal King Genetics breeding program, pollen from selected sibling males of the recurrent parent.

Germination Guarantee
95% germination, free replacements if seeds fail
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