Ace of Spades cannabis seeds packaging — Royal King Seeds Canada
IndicaAuto
THC 20%%
Fast Grow
IndicaFeminizedAutoflowerIn Stock

Ace of Spades Autoflower

Auto F5See Lab Report →

Well-balanced indica autoflower with relaxed and sleepy effects and short stocky growth and heavy trichomes. Ideal for beginner growers seeking a forgiving first grow.

Flavor:Chocolate, coffee, earthy sweetness

Best for:🧘Stress😴Insomnia🩹Pain
Beginner Friendly
🧬
THC
20%
Flower
10 - 12 weeks
⚖️
Yield
Medium - High
🎯
Difficulty
Beginner
📏
Height
Tall
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Stick to low-stress training only on auto indicas

Select Pack Size
$20.29CAD

Premium stabilized genetics · germination guaranteed

Produces medium-high yields with proper training and spacing
Brings pronounced relaxed effects tailored for stress
Beginner-grade stability with reliable germination and vigor

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Popular strain — limited batches available
Community-verified premium genetics

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 2026-03-11 on 325 seeds.

Germination rate: 99.1% (n=325)
Last QC test date: 2026-03-11
Indoor yield: 496-662 g/m² (avg across 8 verified grower reports)
Outdoor yield: 496-692 g/plant (avg across 3 verified grower reports)

About Ace of Spades Autoflower

Bred for relaxation and ease of growing, Ace of Spades Autoflower seeds produce resinous, dense buds packed with calming indica effects. The autoflowering genetics mean this cultivar moves from seed to harvest in as little as 9-10 weeks.

Growing Ace of Spades Autoflower in Canada

Ace of Spades Autoflower performs well in indoor tents, spare rooms, and short-season outdoor plots across Canada. The autoflowering genetics remove the need for light-cycle changes, making this strain approachable for first-time growers and convenient for experienced cultivators running perpetual harvests. Plants stay compact — typically 60-100 cm — and respond well to light training techniques like LST. Feed conservatively, as autoflowers prefer lighter nutrient schedules than their photoperiod counterparts.

Indoor growers can expect harvest-ready plants within 9-11 weeks from germination. Outdoor Canadian growers can start seeds as early as May and harvest before the first frost, making Ace of Spades Autoflower a practical choice from British Columbia to Ontario and beyond.

Effects & Experience

The 66% indica-dominant genetics deliver a soothing body high that builds gradually into deep physical relaxation. Ace of Spades Autoflower is best enjoyed in the evening or on days when unwinding is the priority. Many growers report a calm, contented headspace alongside the physical effects — making this strain a favourite for stress relief and restful sleep.

Why Grow Ace of Spades Autoflower?

For Canadian growers who want quality Ace of Spades genetics without the complexity of photoperiod growing, Ace of Spades Autoflower delivers. Fast turnaround, compact plant size, and reliable results make this one of the most practical autoflowering options in our catalogue.

Effects

😌Relaxed
72% of people reported feeling Relaxed
😴Sleepy
72% of people reported feeling Sleepy
😊Happy
58% of people reported feeling Happy
🤤Hungry
54% of people reported feeling Hungry
🤗Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Best For

Stress
Insomnia
Pain

Strain Type

Indica 66%Sativa 34%

Strain Data Sheet

🧬THC20% - 25% (High)
🌿LineageDeath Star × Blueberry
🔬TypeAutoflower Indica
🌡ClimateAll Climates (Adaptable)
📅Harvest10 - 12 weeks from seed
📏Height3.0 - 5.3 ft | 89 - 158 cm
⚖️YieldMedium - High
🏠Yield Indoor12.0 oz/ft² | 339 - 528 g/m²
🌳Yield Outdoor4 - 11 oz/plant | 109 - 298 g/plant
Flowering Time10 - 12 weeks (seed to harvest)

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
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.
1
Ace of Spades Autoflower
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Ace of Spades Autoflower— 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
F5
Generations Worked
5+
Breeding Program
Autoflower Program — five-generation auto trait fixing
Stabilization Notes — What This Means for Your Grow

Ace of Spades is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the dense flower structure the cultivar is known for. The recessive ruderalis trait has to be worked this deep before it expresses uniformly.

Breeding Goal

Pull auto trigger and finish-window uniformity across the Ace of Spades pack.

Selection Focus

Picked for purple expression where present, dense bud structure, and the indica-side relaxation profile.

Pollen / Mother Source

Royal King Genetics breeding facility — pollen sourced from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
February 15, 2026· 99%+ germination
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