Blueberry Kush cannabis seeds packaging — Royal King Seeds Ireland
IndicaAuto
THC 19%
😊 Beginner Pick
IndicaAutoflowerIn Stock

Blueberry Kush Auto

Blueberry Kush Auto — premium indica cannabis seeds suited to Irish growing conditions. 19% THC with relaxed, sleepy, happy effects. Discreet delivery across Ireland, with sourced grow figures on every strain page.

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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 2026-09-21 on 200 seeds at 20-23°C.

Germination rate: 98.7% (n=200)
Last QC test date: 2026-09-21
Indoor yield: 478-620 g/m² (avg across 6 verified grower reports)
Outdoor yield, Ireland: 494-740 g/plant (avg across 9 verified grower reports)

About Blueberry Kush Auto

Does Blueberry Kush finish outdoors in Ireland? It does, planted out at the end of May and cut by early October. A compact 80/20 plant is easier to shelter and easier to hide, though the density that makes it worth growing is also what holds water after rain. Bloom takes 8-10 weeks (indoor); 56-70 days seed to harvest outdoor, so the harvest date is set by the calendar far more than by your technique.

What should I expect to take off it? 450 g/m2 indoors and 90 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 19% 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 Blueberry Kush

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 indica; the deciding factor is your week, not the plant.

How does it handle the weather here? The dense canopy shades itself, which is useful on the handful of genuinely warm days and a liability in a wet week. Mulch the root zone, water early, and keep air moving underneath.

When does bloom feed start? Within a week of the first pistils. The 80/20 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 8-10 weeks (indoor); 56-70 days seed to harvest outdoor of bloom completely; outdoors the plant gets light no lamp matches and can reach 90 g/plant, and pays for it in rain. Flowering: 8-10 weeks (indoor); 56-70 days seed to harvest outdoor. Indoor yield: 450 g/m2. Outdoor yield: 90 g/plant. Plant height: 70-100 cm. Rated medium difficulty.

What Blueberry Kush is like in practice

The catalogue lists relaxed, sleepy, happy, and that matches what growers here report back. At 19% THC this indica sits where the dose is the whole question. One bowl through a vaporiser at 185°C leaves the head working and the body easy, which is what most people are after on a weeknight. More than that moves it firmly towards sedation. The Linalool and Myrcene together leave a finish that keeps shifting across a session.

Suited to evenings in, recovery after work, and the hour before sleep.

Terpene breakdown

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

Who it suits

Blueberry Kush 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 8-10 weeks (indoor); 56-70 days seed to harvest outdoor 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
😴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

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 80%Sativa 20%

Strain Data Sheet

🧬THC19% - 24% (Medium-High)
🌿LineageBlueberry × OG Kush
🔬TypeAutoflower Indica
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height70-100 cm
⚖️YieldMedium – High
🏠Yield Indoor450 g/m2
🌳Yield Outdoor90 g/plant
⏱Flowering Time8-10 weeks (indoor); 56-70 days seed to harvest outdoor

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.
1
Blueberry Kush Auto
royalkingseeds.ie
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Blueberry Kush 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

Blueberry Kush is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the bud-to-leaf ratio the cultivar is known for. The recessive ruderalis trait demands this depth of work to express uniformly.

Breeding Goal

Lock the autoflower trait in Blueberry Kush through five generations of selection.

Selection Focus

Chosen for resin output, a low-slung stature and a clean indica terpene fingerprint.

Pollen / Mother Source

Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.

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