Jack Frost cannabis seeds packaging β€” Royal King Seeds USA
Hybrid
THC 22%
🎨 Creative
HybridFeminizedIn Stock

Jack Frost Feminized

S1 FeminizedLab Profile Available β†’

Potent feminized hybrid with creative and happy effects and uniform canopy potential. Ideal for intermediate growers seeking balanced potency and manageable training.

β—‰Flavor:Sweet dough, fruity candy, pine

Best for:πŸ•Anytime🌀️Depression🩹Pain
Intermediate Grower
🧬
THC
22%
⏱
Flower
9 - 11 weeks
βš–οΈ
Yield
High
🎯
Difficulty
Intermediate
πŸ“
Height
Tall
🌱
Grow
Indoor / Outdoor
πŸ’‘

Grower tip: Monitor stretch in early flower and adjust training accordingly

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$13.99USD

Premium stabilized genetics Β· germination guaranteed

βœ“Rewards careful growers with high output per plant
βœ“Delivers creative and happy effects ideal for anytime
βœ“Proven hybrid lineage with reliable germination and vigor

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About Jack Frost Feminized

The genetic expression of Jack Frost β€” a 50/50 hybrid β€” varies meaningfully across phenotypes. Most seeds from this line produce the dominant phenotype: a moderate frame that branches well and produces evenly developed colas with a mix of density and airflow. But expect variation β€” roughly 1 in 4 plants will lean more strongly in one parental direction, which is part of what makes pheno-hunting this strain interesting. THC testing at 22% across phenotypes, with Myrcene consistently dominant.

Genetic Expression in the Grow Room

The dominant phenotype β€” which appears in roughly 70-75% of seeds β€” produces a balanced frame that takes to training intuitively. The branching pattern suggests hybrid vigor β€” aggressive enough to fill space without becoming unmanageable. Flower structure falls between dense and airy, which provides a good balance of bag appeal and mold resistance.

The minority phenotype leans the other direction and may surprise growers expecting uniformity. Flowering completes in 9-11 weeks across phenotypes. Yield: 350-450g/mΒ² indoor, 600-800g/plant outdoor. Height: Medium (3-4 ft). Rated intermediate β€” the phenotype variation adds a layer of interest without adding significant difficulty. Growing from feminized seeds.

What Users Report

Jack Frost at 22% THC produces creative, happy, uplifted sensations that users consistently describe as versatile enough to serve different purposes depending on dose and setting. Lower doses lean more cerebral and functional. Higher doses bring the body effect forward. The Myrcene/Limonene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other hybrids at similar THC levels.

Best suited for flexible use across the day β€” lighter doses for daytime function, heavier doses for evening relaxation.

Terpene Profile

Dominant terpenes: Myrcene (primary), Limonene (secondary), Pinene (tertiary). This combination produces a nose that develops complexity through the cure β€” expect the primary myrcene character to emerge first, with limonene and pinene notes adding layers over 3-4 weeks in jars.

Who Should Grow Jack Frost

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

🀩Creative
77% of people reported feeling Creative
😊Happy
65% of people reported feeling Happy
😎Uplifted
58% of people reported feeling Uplifted
😌Relaxed
51% of people reported feeling Relaxed
πŸ€—Euphoric
47% of people reported feeling Euphoric
🀀Hungry
41% of people reported feeling Hungry
😴Sleepy
38% of people reported feeling Sleepy
πŸ˜†Giggly
31% of people reported feeling Giggly
🧠Focused
21% of people reported feeling Focused

Best For

✦ Anytime
✦ Depression
✦ Pain
✦ Stress

Strain Type

Indica 50%Sativa 50%

Strain Data Sheet

🧬THC22% - 27% (High)
🌿LineageBlue Dream Γ— Pineapple Express
πŸ”¬TypeFeminized Hybrid
🌑ClimateMediterranean, Temperate
πŸ“…HarvestMid - Late October
πŸ“Height3.9 - 5.5 ft | 118 - 166 cm
βš–οΈYieldHigh
🏠Yield Indoor16.9 oz/ft² | 478 - 606 g/m²
🌳Yield Outdoor15 - 23 oz/plant | 428 - 656 g/plant
⏱Flowering Time9 - 11 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.
1
Jack Frost Feminized
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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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Jack Frost Feminized β€” Lab-Verified Cannabinoid & Terpene Data

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

Total THC
21.7%
CBD
0.07%
Top Terpenes
Limonene, Caryophyllene, Pinene
Test Lab
SC Labs (CA)
2025

Jack Frost Feminized β€” Real Grower Yield Reports

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

SetupYield
5Γ—5 tent, 730W LED, ScrOG + topping562g
Outdoor, greenhouse, supplemental light828g
Outdoor, balcony, 5-gal fabric pot829g

Jack Frost Feminized β€” Sourcing & Genetics

Release Era
Mid-2000s
Parent Genetics
Modern stabilized 50/50 hybrid
Lineage Notes

Jack Frost Feminized was hybridized in the past five years by combining classic Indica/Sativa parent lines with modern high-THC genetics.

Recommended US Climate

Adaptable to most US climates. Performs best in moderate temperature ranges (60-85Β°F). Indoor recommended in extreme climates.

Jack Frost Feminized β€” Breeder Information

Royal King Genetics

Bred and stabilized 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 our full breeding process and about page.

Stabilization Level
F4
Generations
4+
Breeding Program
Filial Stabilization (F4) β€” four-generation selection
Stabilization Notes β€” What This Means for Your Grow

Jack Frost sits in our F4 program. Four cycles of phenotype selection have removed the worst trait variation; what remains is a tight, predictable population for production.

Breeding Goal

Take Jack Frost from F1 cross to F4 production-ready seed stock.

Selection Focus

Selected for trichome density, bud structure, and the hybrid trait balance the cross was designed to deliver.

Pollen / Mother Source

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

Last Batch QC Verified
February 17, 2026Β· 99%+ germination
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