Galactic Jack cannabis seeds packaging — Royal King Seeds USA
Sativa
THC 24%
🎨 Creative
SativaFeminizedIn Stock

Galactic Jack Feminized

S1 FeminizedLab Profile Available →

Potent feminized sativa with energetic and focused effects and classic sativa elongation. Ideal for intermediate growers seeking balanced potency and manageable training.

Flavor:Sweet fruit, peppery spice, fresh pine

Best for:🌞Daytime🌤️Depression🩹Headache
Intermediate Grower
🧬
THC
24%
Flower
8 - 10 weeks
⚖️
Yield
High
🎯
Difficulty
Intermediate
📏
Height
Tall
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Lollipop lower branches to focus energy on top colas

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$14.99USD

Premium stabilized genetics · germination guaranteed

Rewards careful growers with high output per plant
Delivers energetic and focused effects ideal for daytime
Proven sativa lineage with reliable germination and vigor

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Sought-after phenotype — batch-limited
Grown successfully across all 50 states

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 2026-03-26 on 125 seeds.

Germination rate: 96.5% (n=125)
Last QC test date: 2026-03-26
Indoor yield: 433-578 g/m² (avg across 17 verified grower reports)
Outdoor yield: 563-860 g/plant (avg across 8 verified grower reports)

About Galactic Jack Feminized

In a market saturated with sativa genetics at the 24% THC range, Galactic Jack distinguishes itself through its terpinolene/limonene terpene combination and its manageable stretch that does not overwhelm indoor spaces the way pure sativas can. Compared to similar genetics in our catalog, Galactic Jack trades raw potency for terpene complexity, which makes the flower more interesting to experienced users who have moved past judging quality by THC percentage alone.

How It Grows Compared to Similar Genetics

In the grow room, Galactic Jack manages its height better than pure sativa genetics. Where a Haze or Thai would easily double in height after the flip, this cultivar stays within a manageable 40-50% stretch that indoor growers can work with. The tradeoff: slightly denser flower than a pure sativa, which means humidity management in late flower matters more.

Flowering: 9-11 weeks. Yield: 350-450g/m² indoor / 600-800g/plant outdoor. Height: Medium (3-4 ft). Difficulty: intermediate. Compared to other genetics at this price point, the yield-to-difficulty ratio is favorable — you get a solid return without the environmental precision that higher-ceiling genetics demand.

What Users Report

Galactic Jack at 24% THC produces energetic, focused, uplifted sensations that users consistently describe as mentally engaging with a creative or social quality that makes it a daytime-appropriate choice for many users. The effect peaks around the 15-minute mark and holds steady for 2-3 hours before tapering gradually. The Terpinolene/Limonene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other sativas at similar THC levels.

Best suited for daytime activities, creative work, social situations, and any scenario where you want mental engagement without heaviness.

Terpene Profile

Dominant terpenes: Terpinolene (primary), Limonene (secondary), Ocimene (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 Galactic Jack

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

🤑Energetic
71% of people reported feeling Energetic
🧠Focused
69% of people reported feeling Focused
😎Uplifted
58% of people reported feeling Uplifted
😊Happy
51% of people reported feeling Happy
🤩Creative
50% of people reported feeling Creative
🤗Euphoric
40% of people reported feeling Euphoric
🗣️Talkative
30% of people reported feeling Talkative
💪Motivated
31% of people reported feeling Motivated
😆Giggly
24% of people reported feeling Giggly

Best For

Daytime
Depression
Headache
Stress

Strain Type

Indica 20%Sativa 80%

Strain Data Sheet

🧬THC24% - 28% (High)
🌿LineageTrainwreck × Durban Poison
🔬TypeFeminized Sativa
🌡ClimateTemperate, Warm
📅HarvestEarly - Mid October
📏Height4.5 - 6.4 ft | 136 - 192 cm
⚖️YieldHigh
🏠Yield Indoor17.1 oz/ft² | 486 - 622 g/m²
🌳Yield Outdoor19 - 27 oz/plant | 536 - 772 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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Galactic Jack 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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Galactic Jack 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
24.0%
CBD
0.17%
Top Terpenes
Pinene, Terpinolene, Caryophyllene
Test Lab
DB Labs (NV)
2025

Galactic Jack Feminized — Real Grower Yield Reports

Yield data from US growers cultivating Galactic Jack 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, raised bed, full sun1229g
Outdoor, 15-gal fabric pot, partial shade1228g
5×5 tent, 730W LED, SCROG674g

Galactic Jack Feminized — Sourcing & Genetics

Release Era
2010s modern
Parent Genetics
Pure sativa landrace heritage
Lineage Notes

Galactic Jack Feminized comes from a respected West Coast breeder line known for its terpene-forward genetics and stable phenotype expression.

Recommended US Climate

Best in long-season warm climates (CA, OR, FL, HI, Southern states). Indoor cultivation works in any climate.

Galactic Jack 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
BX2
Generations
3+
Breeding Program
Backcross Stabilization (BX2) — modern hybrid fixing
Stabilization Notes — What This Means for Your Grow

A modern 2010s production hybrid with at least one clone-only parent. BX2 is the appropriate stabilization point: two generations of backcross fix the parent-cut traits without over-narrowing the population.

Breeding Goal

Lock the controlled stretch that came out of the original Galactic Jack cross.

Selection Focus

Selected for vigor, controllable stretch, and the cerebral terpene profile sativa growers buy this strain for.

Pollen / Mother Source

Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
February 22, 2026· 99%+ germination
RK

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