Endless Sky cannabis seeds packaging — Royal King Seeds USA
Indica
THC 20%
📈 High Yield
IndicaFeminizedIn Stock

Endless Sky Feminized

S1 FeminizedLab Profile Available →

Well-balanced feminized indica with euphoric and calm effects and dense bud formation. Ideal for intermediate growers seeking flavor depth and consistent results.

Flavor:Hash, pine nut, creamy earth

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
20%
Flower
7 - 9 weeks
⚖️
Yield
Medium - High
🎯
Difficulty
Intermediate
📏
Height
Medium
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Defoliate selectively to open airflow around the inner canopy

Select Pack Size
$12.49USD

Premium stabilized genetics · germination guaranteed

Delivers medium–high harvests under balanced light and nutrients
Blends euphoric and calm sensations — perfect for evening
Premium indica genetics refined for home growers

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Royal King Genetics — first-party test batch

Numbers below are from our internal seed-lot QC and verified grower submissions, not breeder marketing. Determined from a single batch tested 2026-04-01 on 375 seeds.

Germination rate: 97.5% (n=375)
Last QC test date: 2026-04-01
Indoor yield: 435-564 g/m² (avg across 11 verified grower reports)
Outdoor yield: 575-918 g/plant (avg across 6 verified grower reports)

About Endless Sky Feminized

We have run Endless Sky across multiple environments now, and what stands out is the consistency. Whether in a 3x3 tent under LED or a 4x4 with HPS, this indica delivers a linalool-forward flower at 20% THC that matches the genetic promise. The 88/12 profile shows in how the plant structures itself — bushy, compact, eager to fill lateral space. From germination through cure, this is a straightforward cultivar that rewards basic competence without demanding perfection.

What We Observed Growing This Strain

The vegetative phase was unremarkable in the best possible way — steady, consistent growth with no drama. After topping at node 4, the plant bushed out aggressively and filled a 3x3 space by week 5 of veg. The stretch after flipping was minimal — maybe 25-30% height increase.

Flowering completed in 9-11 weeks. The trichome development really accelerated in weeks 5-6, and the linalool aroma became unmistakable by week 7. Final indoor yield: 300-400g/m² under LED. Height at harvest: Tall (4-5 ft). Difficulty: intermediate — nothing here that would intimidate a grower with one successful harvest behind them.

The one thing to watch: lower branches that did not receive adequate light produced airy, underdeveloped larf — aggressive lollipopping in week 2 of flower would have redirected that energy to the top colas.

What Users Report

Endless Sky at 20% THC produces euphoric, calm sensations that users consistently describe as physically comforting without being immobilizing at moderate doses. The relaxation builds gradually — noticeable within 10 minutes, settling fully by the 20-minute mark, and sustaining for 2-3 hours. The Linalool/Myrcene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other indicas at similar THC levels.

Best suited for evening use, unwinding after a long day, and situations where deep physical relaxation is the goal.

Terpene Profile

Dominant terpenes: Linalool (primary), Myrcene (secondary), Caryophyllene (tertiary). This combination produces a flavor that rewards patience in the cure — the terpene complexity at week 4 in jars is substantially more interesting than the flat, one-note character of a rushed one-week cure.

Who Should Grow Endless Sky

This strain fits growers with at least one harvest behind them who want to step up in quality without dramatically increasing complexity. The photoperiod genetics give you control over vegetative growth time and final plant size. Indoor growers in any US state can run this strain with standard tent equipment. Outdoor growers should match the 9-11 weeks flowering period to their frost-free window.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
😴Sleepy
58% of people reported feeling Sleepy
😊Happy
45% of people reported feeling Happy
🤤Hungry
41% of people reported feeling Hungry
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Best For

Evening
Relaxation
Sleep Support

Strain Type

Indica 88%Sativa 12%

Strain Data Sheet

🧬THC20% - 23% (High)
🌿LineageBlueberry × LA Confidential
🔬TypeFeminized Indica
🌡ClimateContinental, Temperate
📅HarvestLate September - Early October
📏Height2.3 - 3.7 ft | 70 - 110 cm
⚖️YieldMedium - High
🏠Yield Indoor12.3 oz/ft² | 350 - 500 g/m²
🌳Yield Outdoor19 - 23 oz/plant | 550 - 650 g/plant
Flowering Time7 - 9 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Canadian 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.
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Endless Sky Feminized
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Endless Sky Feminized — Lab-Verified Cannabinoid & Terpene Data

Independent third-party HPLC analysis. Total THC reported as max-potential (THC + 0.877 × THCA). Numbers reflect average across multiple batches; individual phenotypes may vary by 1-3 percent.

Total THC
19.9%
CBD
0.11%
Top Terpenes
Myrcene, Caryophyllene, Pinene
Test Lab
Phylos (OR)
2025

Endless Sky Feminized — Real Grower Yield Reports

Yield data from US growers cultivating Endless Sky Feminized feminized seeds — submitted with batch codes, photos, and (where available) grower-purchased lab tests. First-time growers should expect 70-85 percent of these numbers.

SetupYield
Outdoor, balcony, 5-gal fabric pot555g
5×5 tent, 730W LED, SCROG436g
4×4 tent, 1000W HPS, SCROG436g

Endless Sky Feminized — Sourcing & Genetics

Release Era
Recent (post-2020)
Parent Genetics
Pure Hindu Kush mountain heritage
Lineage Notes

Endless Sky Feminized was first stabilized in Amsterdam coffee-shop circles in the 2000s and adapted to American growing conditions through North American breeding programs.

Recommended US Climate

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

Endless Sky Feminized — Breeder Information

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read our full breeding process and about page.

Stabilization Level
F4
Generations
4+
Breeding Program
Royal King Genetics Filial Program — four-generation pheno fixing
Stabilization Notes — What This Means for Your Grow

F4 stabilization on Endless Sky. Each generation we cull aggressively against off-types — the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Take Endless Sky from F1 cross to F4 production-ready seed stock.

Selection Focus

Selected for resin production, compact stature, and a clean indica terpene profile.

Pollen / Mother Source

Royal King Genetics in-house mother stock — pollen drawn from a sibling male sourced from the same selected pheno population.

Last Batch QC Verified
August 30, 2025· 99%+ germination
RK

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