
Free Seeds With Every Order
Choose your free strains — no mystery seeds. Learn more
Ace Killer OG Feminized
High-potency feminized indica with relaxed and sleepy effects and dense bud formation. Ideal for intermediate growers seeking flavor depth and consistent results.
◉Flavor:Hash, pine nut, creamy earth
Grower tip: Defoliate selectively to open airflow around the inner canopy
Premium stabilized genetics · germination guaranteed
Ready to grow this strain?
Free Seeds With Every Order
Choose your free strains — no mystery seeds. Learn more
About Ace Killer OG Feminized
The genetic expression of Ace Killer OG — a 66/34 indica — varies meaningfully across phenotypes. Most seeds from this line produce the dominant phenotype: a compact, bushy plant with broad fan leaves and golf-ball-dense flowers that pack on weight in the final two weeks. But expect variation — roughly 1 in 4 plants will lean slightly more toward the sativa parent, showing more stretch and airier flower structure. THC testing at 25% across phenotypes, with Myrcene consistently dominant.
Genetic Expression in the Grow Room
The dominant phenotype — which appears in roughly 70-75% of seeds — produces a compact, symmetrical plant with broad internodes and heavy lateral branching. Fan leaves are wide and dark green, typical of the indica heritage. Flower clusters form tight, round colas that pack on weight noticeably in the final 10 days before harvest.
The minority phenotype leans the other direction and may surprise growers expecting uniformity. Flowering completes in 9-11 weeks across phenotypes. Yield: 350-450g/m² indoor, 500-700g/plant outdoor. Height: Tall (4-5 ft). Rated intermediate — the phenotype variation adds a layer of interest without adding significant difficulty. Growing from feminized seeds.
What Users Report
Ace Killer OG at 25% 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 Myrcene/Humulene 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: Myrcene (primary), Humulene (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 360-385°F) and combustion, though lower temperatures preserve the humulene top notes that combustion destroys.
Who Should Grow Ace Killer OG
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
Best For
Strain Type
Strain Data Sheet
Packaging
Feminized Premium
Seeds
authenticity
lining
number
Related Strains

Cheeseburger Feminized
Buy Cheeseburger Feminized cannabis seeds online in the USA. Hybrid strain with 20% THC. Effects: Euphoric, Calm. Discreet shipping to all 50 states with germination guarantee.

Project Blue Book Feminized
Buy Project Blue Book Feminized cannabis seeds online in the USA. Sativa strain with 20% THC. Effects: Happy, Energetic, Creative. Discreet shipping to all 50 states with germination guarantee.
Purple Punch Auto
Buy Purple Punch Auto cannabis seeds online in the USA. Indica strain with 21% THC. Effects: Euphoric, Happy, Relaxed. Discreet shipping to all 50 states with germination guarantee.

Grapefruit Diesel Feminized
Buy Grapefruit Diesel Feminized cannabis seeds online in the USA. Hybrid strain with 18% THC. Effects: Relaxed, Sleepy, Uplifted. Discreet shipping to all 50 states with germination guarantee.
Ace Killer OG 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.
Ace Killer OG Feminized — Real Grower Yield Reports
Yield data from US growers cultivating Ace Killer OG 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.
| Setup | Yield |
|---|---|
| 5×5 tent, 1000W HPS, ScrOG + topping | 334g |
| 4×4 tent, 1000W HPS, SCROG | 333g |
| 5×5 tent, 730W LED, SCROG | 333g |
Ace Killer OG Feminized — Sourcing & Genetics
Ace Killer OG Feminized was first stabilized in Amsterdam coffee-shop circles in the 2000s and adapted to American growing conditions through North American breeding programs.
Cold-tolerant; performs well in short-season Northern states (ME, VT, MN, WI). Indoor cultivation works anywhere.
Ace Killer OG Feminized — Breeder Information
Royal King GeneticsBred 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.
Ace Killer OG has been the goal of countless seed-bank backcross programs. Ours is BX3 — three generations of crossing the elite cut back to the parental line until trait expression homogenized. The pack grows true to the mother cut.
Reproduce the original Ace Killer OG mother in pack-to-pack seed stock.
Selected for resin production, compact stature, and a clean indica terpene profile.
Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.