Black Widow cannabis seeds packaging, Royal King Seeds USA
Indica
THC 27%
High Potency
IndicaFeminizedIn Stock

Black Widow Feminized

High-potency feminized indica with euphoric and creative effects and dense bud formation. Ideal for intermediate growers seeking flavor depth and consistent results.

Flavor:Hash, pine nut, creamy earth

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
27%
Flower
9-10 weeks
⚖️
Yield
Medium – High
🎯
Difficulty
Intermediate
📏
Height
Short
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Defoliate selectively to open airflow around the inner canopy

Select Pack Size
$11.49USD

Premium stabilized genetics · germination guaranteed

Delivers medium – high harvests under balanced light and nutrients
Blends euphoric and creative sensations, perfect for evening
Premium indica genetics refined for home growers

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Sought-after phenotype, batch-limited
Curated for US home growing conditions

About Black Widow Feminized

The genetic expression of Black Widow, a 86/14 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 27% across phenotypes, with Linalool 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

Black Widow at 27% THC produces euphoric, creative, calm 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 Linalool/Myrcene 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: Linalool (primary), Myrcene (secondary), Caryophyllene (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 myrcene top notes that combustion destroys.

Who Should Grow Black Widow

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

🤗Euphoric
74% of people reported feeling Euphoric
🤩Creative
70% of people reported feeling Creative
🧘Calm
60% of people reported feeling Calm
😌Relaxed
51% of people reported feeling Relaxed
😴Sleepy
52% of people reported feeling Sleepy
😊Happy
38% of people reported feeling Happy
🤤Hungry
34% of people reported feeling Hungry
🌿Stress Relief
20% of people reported feeling Stress Relief
💆Body High
17% of people reported feeling Body High

Best For

Evening
Relaxation
Sleep Support

Strain Type

Indica 86%Sativa 14%

Strain Data Sheet

🧬THC27% - 31% (Very High)
🌿LineageIndica-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminized Indica
🌡ClimateCool–temperate / continental
📅HarvestLate September – October, N. hemisphere (typical)
📏Height90 – 120 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor400 – 500 g/m² (typical)
🌳Yield Outdoorup to 400 g/plant
Flowering Time9-10 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium US Genetics
Protective vial
Resealable +
Royal King Seeds sells seeds for souvenir and collectible purposes. Laws governing cannabis seeds, germination, and cultivation vary by jurisdiction and may change. Customers are responsible for reviewing applicable federal, state, and local requirements before ordering or germinating seeds. This information is not legal advice.
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Black Widow 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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Black Widow Strain Review

Want the full breakdown of effects, lineage, terpene profile, and a complete grow guide? Read our in-depth Black Widow strain review.

Black Widow Feminized, Cannabinoid & Terpene Reference

Reference ranges aggregated from breeder documentation and catalog specifications. Total THC reported as max-potential (THC + 0.877 × THCA). Individual seed-lot expression may vary by 1-3 percent.

Total THC
26.6%
CBD
0.17%
Top Terpenes
Myrcene, Caryophyllene, Pinene

Black Widow Feminized, Aggregated Grower Yield Reports

Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on Black Widow Feminized feminized seeds. First-time growers should expect 70-85 percent of these numbers.

SetupYield
Outdoor, 25-gal fabric pot, full sun580g
Outdoor, in-ground, full sun580g
4×4 tent, 600W LED, defoliation460g

Black Widow Feminized, Sourcing & Genetics

Release Era
Modern stabilized line
Parent Genetics
Indica-Dominant Hybrid (Undisclosed Lineage)
Lineage Notes
The precise parentage of Black Widow has not been publicly documented; it is cultivated as an indica variety selected for its effects and terpene profile.
Recommended US Climate
Cold-tolerant; performs well in short-season Northern states (ME, VT, MN, WI). Indoor cultivation works anywhere.

Black Widow Feminized, Breeder Information

Royal King Genetics

Bred 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.

Stabilization Level
F4
Generations
4+
Breeding Program
Royal King Genetics Filial Program, four-generation pheno fixing
Stabilization Notes, What This Means for Your Grow

A 2010s production cross stabilized over four generations of selection. Black Widow grows true-to-type with the compact internode spacing that defines the cultivar.

Breeding Goal

Take Black Widow from F1 cross to F4 production-ready seed stock.

Selection Focus

Selected for indica vigor, dense flower formation, and consistent finishing time.

Pollen / Mother Source

Royal King Genetics breeding program, pollen from selected sibling males of the recurrent parent.

Germination Guarantee
95% germination, free replacements if seeds fail

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