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Black Diamond Feminized
Potent feminized hybrid with relaxed and happy effects and uniform canopy potential. Ideal for intermediate growers seeking balanced potency and manageable training.
◉Flavor:Cherry, cream, hints of fuel
Grower tip: Monitor stretch in early flower and adjust training accordingly
Premium stabilized genetics · germination guaranteed
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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 375 seeds.
About Black Diamond Feminized
Black Diamond is a 53/47 hybrid testing at 23% THC with a caryophyllene-dominant terpene profile. At a practical level, this means a plant that offers moderate stretch with balanced branching that responds well to training, finishing in 9-11 weeks. The Caryophyllene/Myrcene combination shapes both the aromatic profile and the effect character — this is not a one-dimensional strain.
Growing Parameters
Flowering time: 9-11 weeks from flip. Indoor yield at 600+ PPFD: 300-400g/m². Outdoor in full sun with 5+ gallon containers: 600-800g/plant. Plant height indoors after training: Medium (3-4 ft). Feed EC targets: 1.0-1.4 in veg, 1.4-1.8 in peak flower. pH range: 6.0-6.5 in soil, 5.8-6.2 in coco. Caryophyllene production peaks when day/night temperature differential exceeds 10°F in the final two weeks — growers who drop nighttime temps to 62-65°F during this window report stronger aromatic development.
This cultivar responds well to topping at the 4th node and moderate defoliation in week 1 and week 3 of flower. SCROG training at a 4x4 grid produces the most uniform canopy distribution. Rated intermediate difficulty.
What Users Report
Black Diamond at 23% THC produces relaxed, happy, euphoric 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 Caryophyllene/Myrcene 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 — lighter doses for daytime function, heavier doses for evening relaxation.
Terpene Profile
Dominant terpenes: Caryophyllene (primary), Myrcene (secondary), Humulene (tertiary). This combination produces a nose that develops complexity through the cure — expect the primary caryophyllene character to emerge first, with myrcene and humulene notes adding layers over 3-4 weeks in jars.
Who Should Grow Black Diamond
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.
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Black Diamond 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.
Black Diamond Feminized — Real Grower Yield Reports
Yield data from US growers cultivating Black Diamond 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 |
|---|---|
| Outdoor, 25-gal fabric pot, full sun | 665g |
| 5×5 tent, 730W LED, ScrOG + topping | 462g |
| 5×5 tent, 730W LED, SCROG | 463g |
Black Diamond Feminized — Sourcing & Genetics
Black Diamond Feminized was hybridized in the past five years by combining classic Indica/Sativa parent lines with modern high-THC genetics.
Adaptable to most US climates. Performs best in moderate temperature ranges (60-85°F). Indoor recommended in extreme climates.
Black Diamond 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.
A newer recent-era cross still in active stabilization. F3 means three generations of selection — the bud density is locked for the majority of the pack, with a small variant subset under continued cull.
Stabilize Black Diamond across three generations toward F4 production-ready stock.
Selected for vigor, terpene saturation, and a tight finishing window that allows production planning.
Royal King Genetics select-mother program — pollen sourced from an internally maintained reversed-female line.