Sour Dubble cannabis seeds packaging — Royal King Seeds Ireland
HybridAuto
THC 26%
⚡ High Potency
HybridAutoflowerIn Stock

Sour Dubble Auto

Order Sour Dubble Auto seeds online in Ireland. A quality hybrid cultivar at 26% THC delivering relaxed, happy, euphoric. Chosen for a short season and a damp finish. Fast shipping and a germination guarantee.

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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 2026-09-13 on 500 seeds at 20-23°C.

Germination rate: 96.8% (n=500)
Last QC test date: 2026-09-13
Indoor yield: 470-632 g/m² (avg across 14 verified grower reports)
Outdoor yield, Ireland: 488-742 g/plant (avg across 5 verified grower reports)

About Sour Dubble Auto

Does Sour Dubble finish outdoors in Ireland? It does, planted out at the end of May and cut by early October. The 61/39 balance handles an Irish season without special treatment, which is most of the reason to choose it. Bloom takes 50-60 days, so the harvest date is set by the calendar far more than by your technique.

What should I expect to take off it? up to 250 g/m2 indoors and up to 350 g/plant outdoors are the published figures, and both assume a full light or a full season plus a root run to match. A tunnel gets you most of the way to the outdoor number; a windowsill will not. At 26% THC the effort is well spent either way.

Is it a sensible first grow? Reasonably. Anyone who has finished one grow will manage this one; it asks for consistency rather than expertise.

Other questions that come up about Sour Dubble

Soil or coco? Coco with fertigation at EC 1.4-1.8 through bloom if you are there daily and want speed. Peat-free soil with slow amendments — fish, blood and bone, seaweed meal, rock phosphate — if you are not, and want flavour. Both suit this hybrid; the deciding factor is your week, not the plant.

How does it handle the weather here? Hybrid vigour covers most of what an Irish summer does. Keep the root zone under 28°C and do not transplant into a warm spell.

When does bloom feed start? Within a week of the first pistils. The 61/39 balance shifts demand quickly at the transition — phosphorus and potassium up, nitrogen down. Soil growers top-dress; coco and hydro switch formula immediately.

Tunnel, outdoors or indoors? A tunnel is the best value of the three here. Indoors you own the 50-60 days of bloom completely; outdoors the plant gets light no lamp matches and can reach up to 350 g/plant, and pays for it in rain. Flowering: 50-60 days. Indoor yield: up to 250 g/m2. Outdoor yield: up to 350 g/plant. Plant height: 90-120 cm. Medium. Rated easy difficulty.

What Sour Dubble is like in practice

The catalogue lists relaxed, happy, euphoric, and that matches what growers here report back. At 26% THC this hybrid sits where the balance is the argument for it. Small doses stay functional, larger ones relax properly, and the 61/39 split means the direction is set by the amount rather than fixed by the plant. The Caryophyllene and Myrcene together leave warmth and spice, drying on the exhale.

Suited to most occasions, with the dose doing the steering.

Terpene breakdown

Primary: Caryophyllene · Secondary: Myrcene · Tertiary: Humulene. 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. Caryophyllene anchors it, myrcene holds the middle, and humulene sits behind both — the last of those being what separates this from other strains leading on the same terpene.

Who it suits

Sour Dubble suits growers with the fundamentals in place. Understand pH, rough nutrient ratios and a light cycle before committing to it; it asks for competence rather than expertise. Autoflowering genetics remove the light schedule from the equation, which matters in a shed or a spare room where full darkness is not realistic. A bloom of 50-60 days fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.

Effects

😌Relaxed
72% of people reported feeling Relaxed
😊Happy
65% of people reported feeling Happy
🤗Euphoric
60% of people reported feeling Euphoric
🤩Creative
56% of people reported feeling Creative
😎Uplifted
45% of people reported feeling Uplifted
🤤Hungry
41% of people reported feeling Hungry
😴Sleepy
38% of people reported feeling Sleepy
😆Giggly
31% of people reported feeling Giggly
🧠Focused
21% of people reported feeling Focused

Best For

✦ Anytime
✦ Relaxation
✦ Stress Relief

Strain Type

Indica 61%Sativa 39%

Strain Data Sheet

🧬THC26% - 29% (Very High)
🌿LineageAutoflowering Balanced Hybrid (Undisclosed Lineage)
🔬TypeAutoflower Hybrid
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height90-120 cm. Medium
⚖️YieldMedium
🏠Yield Indoorup to 250 g/m2
🌳Yield Outdoorup to 350 g/plant
⏱Flowering Time50-60 days

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
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.
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Sour Dubble Auto
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💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Sour Dubble Auto — 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
F5
Generations
5+
Breeding Programme
Royal King Genetics Auto Line — recessive trait stabilisation
Stabilisation Notes — What This Means for Your Grow

Five generations of selection on Sour Dubble to lock the autoflower trait. Auto trigger reliability and terpene fidelity expression both run uniform across the population — no rogue photoperiod plants in the pack.

Breeding Goal

Stabilise the recessive ruderalis trait in Sour Dubble for uniform auto-trigger.

Selection Focus

Chosen for balanced indica/sativa expression, terpene fidelity and pack-to-pack uniformity.

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

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