Free Seeds With Every Order
Choose your free strains, no mystery seeds. Learn more
C4 Feminized
Well-balanced feminized hybrid with euphoric and focused effects and balanced hybrid structure. Ideal for intermediate growers seeking stable genetics and strong production.
βFlavor:Sweet dough, fruity candy, pine
Grower tip: LST during veg creates an even canopy and more bud sites
Premium stabilized genetics Β· germination guaranteed
Ready to grow this strain?
Free Seeds With Every Order
Choose your free strains, no mystery seeds. Learn more
About C4 Feminized
In a market saturated with hybrid genetics at the 20% THC range, C4 distinguishes itself through its limonene/caryophyllene terpene combination and its genuine versatility, this is not just a hybrid by label, it expresses balanced characteristics that make it adaptable to different use scenarios. Compared to similar genetics in our catalog, C4 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, C4 sits in the practical middle ground that hybrid growers appreciate. Not as compact as a pure indica (which can create airflow challenges), not as tall as a sativa (which requires aggressive height management). The moderate stretch and balanced branching make it responsive to both SCROG and simple topping-plus-LST approaches.
Flowering: 9-11 weeks. Yield: 450-550g/mΒ² indoor / 350-500g/plant outdoor. Height: Compact (2-3 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.
Effects and Use
At 20% THC, C4 delivers euphoric, focused, happy effects with a limonene-influenced character. The onset is balanced, head and body arrive together and remain proportional throughout a 2-3 hour duration. This makes the strain adaptable to different situations depending on dose. The limonene dominance keeps the mental space bright and slightly elevated even when the body relaxes.
Terpene Profile
Dominant terpenes: Limonene (primary), Caryophyllene (secondary), Linalool (tertiary). This combination produces an aroma profile that is immediately identifiable when the jar opens and translates well to both vaporization (best at 360-385Β°F) and combustion, though lower temperatures preserve the caryophyllene top notes that combustion destroys.
Who Should Grow C4
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
Best For
Strain Type
Strain Data Sheet
Packaging
Feminized Premium
Seeds
authenticity
lining
number
Related Strains

Space Dawg Auto
Buy Space Dawg Auto cannabis seeds online in the USA. Indica strain with 16% THC. Effects: Relaxed, Sleepy, Happy. Discreet shipping to all 50 states with germination guarantee.

Lemon Thai Feminized
Buy Lemon Thai Feminized cannabis seeds online in the USA. Hybrid strain with 21% THC. Effects: Energetic, Focused, Happy. Discreet shipping to all 50 states with germination guarantee.

G13 Widow Auto
Buy G13 Widow Auto cannabis seeds online in the USA. Indica strain with 22% THC. Effects: Relaxed, Sleepy, Happy. Discreet shipping to all 50 states with germination guarantee.

Alpine Blue Feminized
Buy Alpine Blue Feminized cannabis seeds online in the USA. Hybrid strain with 17% THC. Effects: Relaxed, Happy, Euphoric. Discreet shipping to all 50 states with germination guarantee.
C4 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.
C4 Feminized, Aggregated Grower Yield Reports
Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on C4 Feminized feminized seeds. First-time growers should expect 70-85 percent of these numbers.
| Setup | Yield |
|---|---|
| 5Γ5 tent, 1000W HPS, ScrOG + topping | 365g |
| 4Γ4 tent, 1000W HPS, SCROG | 365g |
C4 Feminized, Sourcing & Genetics
C4 Feminized was developed in the 1990s and has been continuously refined since, modern releases are far more stable than the original 90s phenotypes.
Adaptable to most US climates. Performs best in moderate temperature ranges (60-85Β°F). Indoor recommended in extreme climates.
C4 Feminized, Breeder Information
Royal King GeneticsBred 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.
C4 has been worked through four generations of phenotype hunting and selection. Vigor, flavor saturation, and finish time are locked across the pack, every plant performs to the spec sheet.
Take C4 from F1 cross to F4 production-ready seed stock.
Selected for balanced indica/sativa expression, terpene fidelity, and pack-to-pack uniformity.
Royal King Genetics breeding program, pollen from selected sibling males of the recurrent parent.