Sirius Black cannabis seeds packaging — Royal King Seeds Canada
Indica
THC 24%%
High Yield
IndicaFeminizedIn Stock

Sirius Black Feminized

S1 FeminizedSee Lab Report →

Potent feminized indica with euphoric and creative effects and compact, resin-coated structure. Ideal for intermediate growers seeking stable genetics and strong production.

Flavor:Sweet grape, pine, woody incense

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
24%
Flower
7 - 9 weeks
⚖️
Yield
High
🎯
Difficulty
Intermediate
📏
Height
Tall
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Maintain strong airflow — dense indica buds risk mold in late flower

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$18.19CAD

Premium stabilized genetics · germination guaranteed

Generates high production in both indoor and outdoor setups
Hits with clean euphoric effects that shine during evening
Indica-dominant genetics with stable, consistent phenotype

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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 2026-03-01 on 375 seeds.

Germination rate: 99.3% (n=375)
Last QC test date: 2026-03-01
Indoor yield: 438-590 g/m² (avg across 10 verified grower reports)
Outdoor yield: 470-652 g/plant (avg across 9 verified grower reports)

About Sirius Black Feminized

Sirius Black Feminized is the kind of strain that growers remember for seasons after they run it. The indica genetics express themselves clearly — stocky plants that pack on weight during the final weeks of flower. From seed to harvest, the plant communicates what it needs, making it a manageable run for anyone with a few harvests under their belt.

The pine and earthy flavor profile is not subtle. One common mistake is harvesting too early and missing the full terpene expression — the last 10-14 days of flower are where Sirius Black Feminized develops the depth that separates a decent harvest from a memorable one. With THC testing between 22-26%, the potency backs up the flavor, delivering Euphoric and Creative effects that have kept this genetics in rotation across Canadian grow rooms.

Effects & Experience

What does Sirius Black Feminized feel like? The honest answer changes depending on dosage. At one hit: a light Euphoric wash that colors the next 30 minutes without dominating them. At two to three hits: the full indica experience — Euphoric as the foundation, Creative building on top, and a physical awareness that aligns with the 83% indica heritage. Beyond that: you are in for a heavy ride that will likely end with you asleep wherever you happen to be sitting.

The onset timing is reliable at 3-7 minutes through inhalation. Edibles made from Sirius Black Feminized flower hit differently — the undefined quality becomes more pronounced and the duration stretches to 4-6 hours, which is worth knowing if you plan to process your harvest.

Scenario mapping for real use: post-work decompression (one hit), pain management before bed (two hits), full shutdown on a night off (three-plus hits). The Creative quality that shows up during the descending phase is gentle enough that you do not need to block out recovery time after consuming.

At 22-26% THC, Sirius Black Feminized is potent enough to be respected but approachable enough that experienced consumers will feel the weight without needing to consume excessive amounts. The Humulene terpene amplifies the perceived intensity through the entourage effect — do not judge this strain by the THC number alone.

Flavor & Terpene Profile

Breaking a nug of Sirius Black Feminized in half releases an immediate burst of pine aroma that tells you exactly what this strain is about. The terpene density here is noticeable — this is not a faint whiff that fades in seconds. The Humulene-dominant profile sustains a hoppy, woody, herbal presence that fills the room and sticks to your fingers after handling the bud.

Smoke character: the first draw brings pine front and center, with the texture sitting somewhere between smooth and full-bodied. It is not a light smoke, but it is not harsh either — there is a substance to each pull that carries the flavor without irritation. The exhale shifts the profile toward earthy territory, with mushroom showing up as a subtle finishing note that rewards attention.

One detail growers should know: the pine and earthy notes intensify dramatically during the last two weeks of flower. In our experience, the terpene production ramps up faster than resin production during this final stretch, which is part of why Sirius Black Feminized rewards patience at the end of the cycle. Harvest a week early and you will lose a significant portion of the flavor complexity.

The three terpenes working together in Sirius Black Feminized are: - Humulene (primary) — hoppy, woody, herbal base notes, contributes appetite-suppressing and grounding properties to the high - Ocimene (secondary) — sweet, herbaceous, woody mid-tones, adds energizing and uplifting qualities to the experience - Terpinolene (tertiary) — herbal, floral, woody accents, provides mildly sedating with creative undertones nuance

This combination is why Sirius Black Feminized tastes the way it does and why the effects feel as cohesive as they do. Stripping out any one of these terpenes — through harsh extraction methods or poor curing — fundamentally changes the character of the final product. For the best expression, consume through clean glass or a quality dry herb vaporizer at 350-370°F.

Growing Sirius Black Feminized in Canada

Real talk about growing Sirius Black Feminized: it does what the genetics say it will do, which is more than you can say for half the seeds on the market. This photoperiod cultivar finishes in 7-9 weeks of flowering, stays within 80-120cm indoors, and produces 400-550g/m² when the environment is dialed in.

Indoor Growing Profile: The indica structure means short, bushy plants with heavy lateral branching. Plan for 4-6 plants per 4x4 tent in a SOG layout, or 2-4 in a ScrOG setup with extended veg time. Lighting should target 600-800 PPFD during flower using full-spectrum LED.

The Canadian Outdoor Challenge: Every Canadian outdoor grower is racing the calendar. Photoperiod strains need to be flowering by early August to finish before October frost. In practice, this means starting indoors in March-April and transplanting outside after the May long weekend. Southern Ontario and BC growers get the most outdoor runway; Prairie and Maritime growers should lean toward faster-finishing phenotypes. 450-650g/plant per plant is achievable in full sun with proper soil preparation.

Height Management: From flip to final height, Sirius Black Feminized adds 30-50% during the flower stretch. Manage the stretch with supercropping or tie-downs during the first two weeks of flower.

Feeding Schedule Notes: Week-by-week adjustments produce the best results. Ramp nitrogen during veg weeks 2-4, taper during the transition, and push P-K ratios during weeks 3-6 of flower when calyx development peaks. Add silica throughout for stronger stems and enhanced trichome production.

Pest and Disease in Canadian Conditions: Fungus gnats thrive in the damp conditions common in Canadian basements. Use yellow sticky traps, let your medium dry slightly between waterings, and top-dress with diatomaceous earth. Powdery mildew is the other Canadian grow room nemesis — keep humidity below 50% in flower and maintain airflow. Dense bud structures hide mold until it is advanced — inspect inner colas regularly.

Comparable strains worth considering: Ace Killer OG Feminized, Granddaddy Purple Feminized, China Yunnan Feminized. For growing fundamentals, reference our germination guide and our cold-hardy seeds for Canada.

Harvest, Drying & Curing Sirius Black Feminized

The grow is only half the work. How you handle Sirius Black Feminized after chop determines whether the flower reaches its full potential or falls short. In our experience, this indica benefits from a longer dry than most growers give it.

Harvest timing: The trichome window for Sirius Black Feminized is relatively narrow — about a 5-7 day window where most trichomes are cloudy with 20-30% amber. Missing this window on either side changes the effect profile significantly. Early harvest produces a more cerebral, less sedating experience. Late harvest pushes further into body-heavy territory.

Drying protocol: Hang full branches in a dark room at 60°F and 55-60% relative humidity. Target 10-14 days for the initial dry. Dense buds from this strain dry from the outside in — what feels dry on the surface may still be moist at the core. Err on the side of longer drying time. Stems should snap cleanly (not bend) before trimming and jarring.

Curing for maximum expression: Trim to preference, jar at 60-65% humidity (use Boveda packs if needed), and burp daily for the first week, then every few days for weeks 2-4. Sirius Black Feminized reaches baseline quality at three weeks of curing but continues improving through week six. The pine and earthy terpene notes intensify noticeably between week two and week four — this is the stage where patience pays dividends that impatient growers never taste.

Storage: Sealed glass jars in a cool, dark location. Properly cured Sirius Black Feminized maintains potency and flavor for 8-12 months. Avoid plastic containers — trichomes stick to plastic surfaces and terpenes degrade faster in non-inert materials. For long-term storage beyond six months, vacuum sealing with a humidity pack extends shelf life significantly. For more techniques, check our cold-hardy seeds for Canada. Find similar strains in our feminized cannabis seeds collection.

Who Sirius Black Feminized Is For

Growers with a harvest or two under their belt are in the sweet spot for this strain. It expects basic competence but does not demand constant intervention.

Indoor growers get the most consistent results with Sirius Black Feminized — the controlled environment lets the genetics express themselves fully. Outdoor growers in zones 5-7 can run this strain successfully, though protecting against fall moisture and early frost requires planning.

Goal-based fit: - Yield hunters: Yields are respectable but not record-breaking — the quality of the flower compensates. - Flavor chasers: The pine terpene profile makes this one worth growing for the taste alone. - Potency seekers: At 22-26% THC, this is serious potency territory.

Who should skip this one: Anyone looking for an energizing daytime strain. This is evening genetics through and through.

How Sirius Black Feminized Compares

Where does Sirius Black Feminized sit among indica seeds available in Canada? Above average for flavor, competitive on potency at 22-26% THC, and on par with comparable strains in terms of cultivation demands.

The closest alternatives — Ace Killer OG Feminized or Granddaddy Purple Feminized — share the general indica profile but differ in specifics. Sirius Black Feminized wins on pine terpene intensity. The Humulene-dominant profile creates a flavor that is immediately identifiable, which is not something every strain can claim.

In the photoperiod field, Sirius Black Feminized competes on consistency. Every seed produces a similar plant, which matters for commercial growers and home cultivators who want predictable results.

The standout trait: the physical depth of the effects. Where other indicas relax, this one genuinely sedates at full dose.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
🤩Creative
70% of people reported feeling Creative
😌Relaxed
58% of people reported feeling Relaxed
😴Sleepy
58% of people reported feeling Sleepy
😊Happy
45% of people reported feeling Happy
🤤Hungry
41% of people reported feeling Hungry
🧘Calm
33% of people reported feeling Calm
🌿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 83%Sativa 17%

Strain Data Sheet

🧬THC24% - 27% (High)
🌿LineageDeath Star × LA Confidential
🔬TypeFeminized Indica
🌡ClimateContinental, Temperate
📅HarvestLate September - Early October
📏Height3.0 - 5.1 ft | 91 - 152 cm
⚖️YieldHigh
🏠Yield Indoor14.1 oz/ft² | 401 - 552 g/m²
🌳Yield Outdoor16 - 21 oz/plant | 451 - 602 g/plant
Flowering Time7 - 9 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 Canada under the Cannabis Act (2018). Customers are responsible for understanding local laws.
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Sirius Black Feminized
royalkingseeds.ca
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💧Waterproof coating
🛡️Aluminium interior lining
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Sirius Black Feminized— Breeder & Stabilization Detail

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics — the internal breeding team at Royal King Seeds. Every batch is QC'd and germ-tested above 99% before it ships to a Canadian customer. Read the full breeding process or learn more on the about page.

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

Sirius Black sits inside our F4 program. Four cycles of pheno selection have stripped out the worst trait variation, leaving a tight, predictable population fit for production.

Breeding Goal

Strip off-type phenos out of Sirius Black via filial selection.

Selection Focus

Picked for resin output, compact stature, and a clean indica terpene character.

Pollen / Mother Source

Royal King Genetics select-mother program — pollen drawn from an internally maintained reversed-female line.

Last Batch QC Verified
November 25, 2025· 99%+ germination
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