Diablo cannabis seeds packaging — Royal King Seeds Ireland
Hybrid
THC 18%
🌙 Sleep Aid
HybridFeminisedIn Stock

Diablo Feminised

Grow Diablo Feminised in Ireland. Hybrid genetics testing at 18% THC. Known for happy, relaxed, sleepy effects. Ships discreetly nationwide with sourced grow figures.

Select Pack Size
€10.49EUR
1
🇮🇪Free Irish Delivery
🌱Germination Promise
🔒Unmarked Packaging
⚗

Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified Irish grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-06 on 300 seeds at 21-24°C.

Germination rate: 96.1% (n=300)
Last QC test date: 2026-09-06
Indoor yield: 419-588 g/m² (avg across 7 verified grower reports)
Outdoor yield, Ireland: 399-650 g/plant (avg across 10 verified grower reports)

About Diablo Feminised

Everything about Diablo at harvest follows from one decision, which is when you stop. The figures are up to 200 g/m2 indoors and up to 200 g/plant outdoors, with resin filling towards 18% THC. The 40/50 balance gives steady gain with a lift in the closing fortnight. Outdoors, aim to be finished by mid-October rather than hoping for a dry third week of it.

Where the weight is won

Three parts of the 50-60 days of bloom account for most of the difference between a good result and an average one on a plant rated up to 200 g/m2 indoors and up to 200 g/plant outdoors.

The stretch, days 1-10 after the flip. Canopy height set here decides how evenly light lands for the rest of the run. Around a third is usual. A single pass of training across the tallest shoots keeps the top flat.

Weeks three to five. Limonene production climbs through this stretch and responds to a 6-8°C gap between lights-on and lights-off. Outdoors an Irish September provides that without help; indoors it has to be built, at roughly 25°C by day and 18-20°C at night. Bloom feed goes potassium-forward around EC 1.6-1.8.

The final fortnight. Feeding stops, plain pH-corrected water goes on, and the loupe comes out daily. Ten to fifteen per cent amber sits in the middle of its range. Outdoors, that falls between late September and mid-October, and the forecast gets a say.

Flowering: 50-60 days. Indoor yield: up to 200 g/m2. Outdoor yield: up to 200 g/plant. Plant height: Medium (150-245 cm). Rated moderate difficulty.

Flavour, aroma and effect

Diablo arrives in order. The first draw at 18% THC gives citrus with a bitter edge that lifts off the palate. The happy, relaxed, sleepy character follows in minutes, as head and body together. Thinking stays clear while the muscles let go by degrees, which is what makes the dose, rather than the genetics, the thing that decides the evening. Caryophyllene underneath contributes warmth that keeps it anchored.

Terpene breakdown

Primary: Limonene · Secondary: Caryophyllene · Tertiary: Linalool. This is a combination that turns up repeatedly in cultivars people rate, and it is usually what gets commented on when a jar is opened for the first time after a proper cure. Limonene anchors it, caryophyllene holds the middle, and linalool sits behind both — the last of those being what separates this from other strains leading on the same terpene.

Who it suits

Who does well with Diablo? Indoor growers who want to choose their own timeline. Tunnel growers who want to decide when flowering starts rather than letting August decide it. Anyone with the space to veg it properly first. Rated moderate, which means a moderate learning curve that rewards attention without needing specialist kit.

Effects

😊Happy
72% of people reported feeling Happy
😌Relaxed
65% of people reported feeling Relaxed
😴Sleepy
65% of people reported feeling Sleepy
🤩Creative
56% of people reported feeling Creative
🤗Euphoric
47% of people reported feeling Euphoric
😎Uplifted
38% of people reported feeling Uplifted
🤤Hungry
34% of people reported feeling Hungry
😆Giggly
31% of people reported feeling Giggly
🧠Focused
21% of people reported feeling Focused

Best For

✦ Evening
✦ Headache
✦ Pain
✦ Stress

Strain Type

Indica 40%Sativa 50%

Strain Data Sheet

🧬THC18% - 21% (Medium-High)
🌿LineageBlueberry × Grapefruit × South African Landrace
🔬TypeFeminised Hybrid
🌡ClimateTemperate, adaptable
📅HarvestSept – Nov, S. hemisphere (typical)
📏HeightMedium (150-245 cm)
⚖️YieldMedium
🏠Yield Indoorup to 200 g/m2
🌳Yield Outdoorup to 200 g/plant
⏱Flowering Time50-60 days

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers are responsible for complying with the law where they live.
1
Diablo Feminised
royalkingseeds.ie
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

Related Strains

Diablo cannabis seeds packaging — Royal King Seeds Ireland
HybridAuto
THC 18%
😊 Beginner Pick

Diablo Auto

HappyRelaxedSleepy
▼
€10.49EUR
Pink Mango cannabis seeds packaging — Royal King Seeds Ireland
Hybrid
THC 23%
📈 High Yield

Pink Mango Feminised

RelaxedHappyEuphoric
▼
€10.95EUR
Sweet Deep Grapefruit cannabis seeds packaging — Royal King Seeds Ireland
Indica
THC 15%
🌙 Sleep Aid

Sweet Deep Grapefruit Feminised

RelaxedSleepyHappy
▼
€13.69EUR
Blueberry Cheesecake cannabis seeds packaging — Royal King Seeds Ireland
Hybrid
THC 17%
🎨 Creative

Blueberry Cheesecake Feminised

HappyRelaxedUplifted
▼
€10.95EUR

Diablo Feminised — Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.

Stabilisation Level
F3
Generations
3+
Breeding Programme
F3 Refinement Programme — three-generation selection
Stabilisation Notes — What This Means for Your Grow

Diablo runs through our F3 programme. Most of the pack expresses the target trichome production cleanly; the F3-to-F4 cycle is where we close out the last remaining off-types.

Breeding Goal

Stabilise Diablo across three rounds toward F4 production-ready stock.

Selection Focus

Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.

Pollen / Mother Source

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

Last Batch QC Verified
7 September 2026· 99%+ germination