Fat Purple cannabis seeds packaging — Royal King Seeds Canada
Indica
THC 20%%
High Yield
IndicaFeminizedIn Stock

Fat Purple Feminized

S1 FeminizedSee Lab Report →

Well-balanced feminized indica with happy and euphoric effects and dense bud formation. Ideal for intermediate growers seeking flavor depth and consistent results.

Flavor:Earthy pine, sweet berry, subtle hash

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
20%
Flower
7 - 9 weeks
⚖️
Yield
High
🎯
Difficulty
Intermediate
📏
Height
Tall
🌱
Grow
Indoor / Outdoor
💡

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

Select Pack Size
$17.49CAD

Premium stabilized genetics · germination guaranteed

Delivers high harvests under balanced light and nutrients
Blends happy and euphoric sensations — perfect for evening
Premium indica genetics refined for home growers

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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 2026-04-03 on 350 seeds.

Germination rate: 98.4% (n=350)
Last QC test date: 2026-04-03
Indoor yield: 441-574 g/m² (avg across 9 verified grower reports)
Outdoor yield: 545-826 g/plant (avg across 4 verified grower reports)

About Fat Purple Feminized

Fat Purple Feminized arrived in our test garden with modest expectations and left a lasting impression. This indica cultivar packs 18-22% THC into dense, golf-ball nugs that carry a thick coat of trichomes by harvest. The blueberry flavor is the headline, but the plum undertone and Linalool terpene backbone tell the fuller story.

For growers tired of strains that look good on paper but disappoint in the jar, Fat Purple Feminized delivers the goods. The Happy onset is consistent from batch to batch — we have seen this across multiple seed pops — and the Euphoric quality that builds over the session makes this one of the more complete indica experiences available as feminized autoflower seed in Canada.

Effects & Experience

Fat Purple Feminized opens with Happy as the lead note and builds from there. The onset is steady rather than abrupt — you will feel the shift starting within 3-5 minutes of consumption, with the full expression arriving around the 25-40 minutes mark. At that peak, the 74/26 indica-sativa balance becomes obvious: the body sinks into whatever surface you are resting on while the mind drifts into a pleasant, unhurried state.

Dosage makes a real difference with this cultivar. A conservative dose (0.1-0.15g in a vaporizer) delivers the Happy and Euphoric qualities at a level that most people can work through. Double that dose and Creative takes the wheel — at this level, Fat Purple Feminized transitions from a functional indica into a couch-focused experience where motivation takes a back seat to comfort.

Growers often find that the same batch produces slightly different effect profiles depending on harvest timing. Pulling plants when trichomes are mostly cloudy emphasizes the Happy and Euphoric qualities. Waiting for 20-30% amber shifts the experience toward heavier sedation and body weight. This gives the cultivator some control over the final product — something that experienced growers appreciate about Fat Purple Feminized specifically.

Real-world scenarios where this strain fits: movie night after the kids are asleep, a slow Sunday with nowhere to be, managing chronic tension or discomfort during the evening hours. The Calm quality that surfaces late in the session ensures the landing is soft.

Flavor & Terpene Profile

Let's talk about what Fat Purple Feminized actually tastes like. The jar smell is blueberry — not a hint of it, not a suggestion, but a confident statement. Breaking the bud open amplifies the plum and grape undertones that were hiding beneath the surface. The grind fills the room.

The smoke itself carries blueberry on the inhale with a texture that sits in the medium-body range. It is not wispy and it is not harsh — just a solid, flavorful draw that delivers the terpenes efficiently. The exhale is the interesting part: plum takes the lead position, with grape providing a subtle finish that lingers for 15-20 seconds. Regular consumers learn to appreciate this transition — it is the same every session, which builds a flavor memory unique to Fat Purple Feminized.

Linalool is the primary terpene here, contributing floral, lavender notes and calming and tranquil properties that directly influence the quality of the high. Terpinolene plays second chair with herbal, floral, woody accents and its own mildly sedating with creative undertones pharmacological contribution. The interplay between these two terpenes is what separates Fat Purple Feminized from strains with similar THC content but less interesting smoke.

Growing tip related to flavor: the terpene profile responds to environmental stress during late flower. A mild temperature drop to 60-65°F during the final dark period can push terpene production slightly higher. Some phenotypes will also express purple coloration under these conditions, which does not affect flavor but looks stunning in the jar. Avoid using heavy pesticides or foliar sprays during the last four weeks — anything you apply can end up affecting the terpene expression.

For the best flavor experience: vaporize at 345-365°F through a clean glass pathway. Combustion works but sacrifices approximately 30% of the volatile terpene compounds that make Fat Purple Feminized taste the way it does.

Growing Fat Purple Feminized in Canada

Here is what you need to know before popping Fat Purple Feminized seeds. This intermediate-level autoflower runs 70-85 days from seed to harvest, reaches 80-120cm indoors, and yields 400-550g/m² with competent care. Those are the numbers. Here is the context.

Starting the Grow: Germinate using the paper towel method or directly in a starter plug. Fat Purple Feminized seeds typically crack within 48-72 hours at 75-80°F and high humidity. Transplant seedlings into their final container by day 10-14 — autoflowers do not respond well to transplant shock, so starting in the final pot (3-5 gallon) from germination is the safest approach. Check our germination guide for step-by-step technique.

Indoor Environment: Target 75-80°F during lights-on and 65-70°F during lights-off. Humidity should follow the growth stage: 65-70% during seedling, 50-60% during veg, and 40-50% during flower. This strain develops dense buds that trap moisture — dropping humidity to 40% during the last two weeks of flower reduces botrytis risk significantly.

Outdoor Timing for Canadian Provinces: - British Columbia: Start outdoor transplant mid-May. Harvest by August. - Ontario: Last frost typically mid-May. Same transplant timing. Harvest July-August. - Alberta/Prairies: Shorter season — autoflowers are ideal here, starting outdoors in early June and finishing by late August. - Maritimes: High humidity regions — extra airflow and wider plant spacing are essential to prevent mold.

Training and Canopy Management: Low-stress training (LST) only — avoid topping or FIMing autoflowers as the recovery time eats into the fixed lifecycle. Gently bend the main stem at day 20-25 and tie down branches as they grow to create an even canopy.

Yield Optimization: To push Fat Purple Feminized toward the upper end of the 400-550g/m² range indoors, maintain consistent PPFD above 600 during flower, supplement with CO2 if your setup allows, and extend the dark period to 48 hours before harvest. Outdoor yields of 450-650g/plant require full sun, consistent feeding through mid-flower, and protection from September rain.

Mistakes to Avoid: Under-feeding during the calyx swell phase (weeks 5-7 of flower) limits final bud density. Do not reduce nutrients too early — maintain bloom feeding until the final 10-14 day flush. Explore our feminized cannabis seeds collection for similar genetics that share these growing characteristics.

Post-Harvest Processing of Fat Purple Feminized

The work does not end at chop. How you process Fat Purple Feminized after harvest has as much impact on final quality as the entire grow cycle that preceded it. Growers often find this is where they either lock in everything they worked for or let it slip through their fingers.

Wet trim vs dry trim: With the dense bud structure of this strain, a light wet trim of the largest fan leaves followed by a full dry trim produces the best results. Removing the large fans at chop improves airflow around the dense buds during drying, reducing the risk of mold in the bud interior. Either approach works — consistency is more important than the specific method.

Drying environment: 60°F, 55-60% relative humidity, complete darkness, gentle air circulation (fan on the wall, not pointed at the plants). In Canadian homes, fall and winter provide naturally cool conditions that support a slow dry. Summer growers may need to run a small air conditioner or dehumidifier to maintain proper conditions. The ideal dry takes 10-14 days. Under 7 days indicates the environment is too warm or dry. Over 18 days suggests it is too cold or humid.

Curing science: Curing is not simply about drying further — it is a controlled decomposition process where chlorophyll breaks down, starches convert to sugars, and terpene profiles develop their full complexity. Fat Purple Feminized benefits from extended curing because the Linalool terpene develops slowly. Jars opened at two weeks will taste noticeably different (and better) than the same flower at four weeks. We recommend a minimum four-week cure for this strain.

Quality indicators to watch during cure: The blueberry aroma should intensify gradually over the first 3-4 weeks. If you detect ammonia or hay-like smells, the flower was jarred too wet — open the jars immediately and allow additional drying before re-sealing. Properly cured Fat Purple Feminized should smell cleanly of blueberry and plum with no off-notes. The buds should feel slightly sticky without being damp, and should break apart with a clean snap rather than crumbling to dust.

For more post-harvest techniques, refer to our germination guide. Comparable strains like Badazz Rolex Feminized and Grape God Feminized respond to similar curing protocols.

Who Fat Purple Feminized Is For

Know your goals before buying seeds, and Fat Purple Feminized will either fit or it won't. This strain is designed for Happy and Evening / Relaxation. If those are priorities, proceed with confidence.

Grower fit: Best for growers with at least one successful harvest behind them. Not demanding, but it responds to skilled growing with noticeably better results. The autoflower lifecycle removes one of the most common beginner errors — light schedule management.

Consumer fit: The 74/26 split targets evening and nighttime use. If you are consuming cannabis primarily for relaxation, sleep, or physical comfort, this strain aligns with those goals. THC at 18-22% means most consumers can find a comfortable dose with reasonable trial.

Not the right fit for: Productivity-focused consumers. Growers in cramped spaces who still want big sativa yields.

How Fat Purple Feminized Compares

Honest positioning of Fat Purple Feminized in the indica landscape: there are strains with higher THC, strains with bigger yields, and strains with louder flavors. What Fat Purple Feminized does better than most is bring all three together in a package that actually performs in the garden without drama.

Side-by-side with comparable genetics (Badazz Rolex Feminized, Grape God Feminized, Blue Mystic Feminized), the differences come down to emphasis. Fat Purple Feminized prioritizes blueberry terpene expression and Happy effect consistency. Competitors in this space tend to chase either potency or yield at the expense of flavor, and the smoke shows it.

Key comparison points: - THC: 18-22% puts Fat Purple Feminized in the competitive middle - Yield: 400-550g/m² indoors is in line with category expectations - Difficulty: intermediate — comparable to peers - Flavor: Distinctive blueberry character that separates it from the generic terpene profiles many competitors offer

As an autoflower, the main comparison point is lifecycle speed versus photoperiod alternatives. The answer depends on your priorities: choose auto for speed and simplicity, choose photo for maximum yield and potency ceiling.

Effects

😊Happy
72% of people reported feeling Happy
🤗Euphoric
67% of people reported feeling Euphoric
🤩Creative
63% of people reported feeling Creative
🧘Calm
53% of people reported feeling Calm
😌Relaxed
45% of people reported feeling Relaxed
😴Sleepy
45% of people reported feeling Sleepy
🤤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 74%Sativa 26%

Strain Data Sheet

🧬THC20% - 23% (High)
🌿LineagePurple Punch × Granddaddy Purple
🔬TypeFeminized Indica
🌡ClimateContinental, Temperate
📅HarvestLate September - Early October
📏Height3.1 - 5.3 ft | 94 - 158 cm
⚖️YieldHigh
🏠Yield Indoor14.3 oz/ft² | 404 - 558 g/m²
🌳Yield Outdoor16 - 21 oz/plant | 454 - 608 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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Fat Purple Feminized
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
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Fat Purple 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
F4 Production Line — modern cross stabilization
Stabilization Notes — What This Means for Your Grow

A mid-2010s cross stabilized over four generations of selection. Fat Purple grows true-to-type and carries the resin density that defines the cultivar.

Breeding Goal

Stabilize the Fat Purple cross over four selection generations.

Selection Focus

Picked for indica vigor, dense flower formation, and reliable finish times.

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen pulled from a generation-tracked sibling-male line.

Last Batch QC Verified
April 11, 2026· 99%+ germination
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