Master Kush cannabis seeds packaging — Royal King Seeds USA
Indica
THC 21%
🌙 Sleep Aid
IndicaFeminizedIn Stock

Master Kush Feminized

S1 FeminizedLab Profile Available →

Potent feminized indica with relaxed and sleepy effects and tight node spacing. Ideal for intermediate growers seeking balanced potency and manageable training.

Flavor:Pine, kush, dark berry

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
21%
Flower
8 - 10 weeks
⚖️
Yield
Medium - High
🎯
Difficulty
Intermediate
📏
Height
Medium
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Support heavy colas with stakes as they mature

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$12.99USD

Premium stabilized genetics · germination guaranteed

Rewards careful growers with medium–high output per plant
Delivers relaxed and sleepy effects ideal for evening
Proven indica lineage with reliable germination and vigor

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About Master Kush Feminized

We have run Master Kush 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 21% THC that matches the genetic promise. The 89/11 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: Medium (3-4 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

Master Kush at 21% THC produces relaxed, sleepy, happy 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 Master Kush

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

😌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
🤗Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿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 89%Sativa 11%

Strain Data Sheet

🧬THC21% - 25% (High)
🌿LineageNorthern Lights × Bubba Kush
🔬TypeFeminized Indica
🌡ClimateCool, Temperate
📅HarvestEarly - Mid October
📏Height2.7 - 4.3 ft | 80 - 130 cm
⚖️YieldMedium - High
🏠Yield Indoor14.8 oz/ft² | 420 - 540 g/m²
🌳Yield Outdoor18 - 24 oz/plant | 520 - 690 g/plant
Flowering Time8 - 10 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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Master Kush 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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Master Kush 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
21.4%
CBD
0.07%
Top Terpenes
Myrcene, Humulene, Pinene
Test Lab
Steep Hill (CA)
2025

Master Kush Feminized — Real Grower Yield Reports

Yield data from US growers cultivating Master Kush 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
4×4 tent, 600W LED, defoliation372g
4×4 tent, 600W LED, LST372g
5×5 tent, 730W LED, ScrOG373g

Master Kush Feminized — Sourcing & Genetics

Release Era
Mid-2000s
Parent Genetics
Afghani × Pakistani landrace cross
Lineage Notes

Master Kush Feminized is a modern stabilized hybrid developed through 5+ generations of phenotype hunting in Colorado and Oregon legal grow operations.

Recommended US Climate

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

Master Kush 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
F5 IBL
Generations
5+
Breeding Program
IBL Heritage Program — five-generation inbred fixing
Stabilization Notes — What This Means for Your Grow

This is one of the deepest stabilization lineages in our catalog. Master Kush traces back to late-1990s legacy stock, and Royal King Genetics has run five generations of Royal King Genetics inbred selection on top of that. Pheno drift has been removed; pack-to-pack consistency is true-to-type.

Breeding Goal

Restabilize a late-1990s legacy cultivar to modern uniformity standards.

Selection Focus

Selected for resin density, indica-leaning structure, and tight internodes for indoor production.

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen drawn from a generation-tracked sibling-male line.

Last Batch QC Verified
July 19, 2025· 99%+ germination
RK

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