Jupiter OG cannabis seeds packaging — Royal King Seeds Ireland
IndicaAuto
THC 20%
😊 Beginner Pick
IndicaAutoflowerIn Stock

Jupiter OG Auto

Jupiter OG Auto — premium indica cannabis seeds suited to Irish growing conditions. 20% THC with euphoric, relaxed, sleepy effects. Discreet delivery across Ireland, with sourced grow figures on every strain page.

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€9.12EUR
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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 2026-09-15 on 500 seeds at 20-23°C.

Germination rate: 96.9% (n=500)
Last QC test date: 2026-09-15
Indoor yield: 420-536 g/m² (avg across 12 verified grower reports)
Outdoor yield, Ireland: 394-590 g/plant (avg across 7 verified grower reports)

About Jupiter OG Auto

Everything about Jupiter OG at harvest follows from one decision, which is when you stop. The figures are 300–400 g/m² indoors and 350–450 g/plant outdoors, with resin filling towards 20% THC. Weight arrives late on a plant this indica-leaning — the 75/25 split stacks calyxes hard through the middle weeks and then thickens them. Growers who cut on the calendar rather than the glass lose that last stage, and it is the most valuable one.

Where the weight is won

Three parts of the 7–9 weeks from seed of bloom account for most of the difference between a good result and an average one on a plant rated 300–400 g/m² indoors and 350–450 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. Twenty to thirty per cent is typical; taking the lowest fans around day seven pushes energy up to the sites that will finish.

Weeks three to five. Linalool 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. Fifteen to twenty per cent amber suits the weight of effect this one is grown for. Outdoors, that falls between late September and mid-October, and the forecast gets a say.

Flowering: 7–9 weeks from seed. Indoor yield: 300–400 g/m². Outdoor yield: 350–450 g/plant. Plant height: 70–110 cm. Rated easy difficulty.

What Jupiter OG is like in practice

The catalogue lists euphoric, relaxed, sleepy, and that matches what growers here report back. At 20% 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. The three shift relative to each other across the cure. Straight off the dry the linalool dominates; three or four weeks sealed in glass at 16-18°C and the caryophyllene underneath comes up to meet it. Vaporising between 180°C and 195°C catches the widest span, because heat takes the lighter caryophyllene molecules first.

Who it suits

Jupiter OG 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 7–9 weeks from seed fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
😌Relaxed
65% of people reported feeling Relaxed
😴Sleepy
65% of people reported feeling Sleepy
😊Happy
51% of people reported feeling Happy
🤤Hungry
48% of people reported feeling Hungry
🧘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
✦ Headache
✦ Insomnia
✦ Pain

Strain Type

Indica 75%Sativa 25%

Strain Data Sheet

🧬THC20% - 24% (High)
🌿LineageAutoflowering Indica-Dominant Hybrid (Undisclosed Lineage)
🔬TypeAutoflower Indica
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height70–110 cm
⚖️YieldMedium – High
🏠Yield Indoor300–400 g/m²
🌳Yield Outdoor350–450 g/plant
⏱Flowering Time7–9 weeks from seed

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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Jupiter OG Auto
royalkingseeds.ie
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Jupiter OG 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

Jupiter OG is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the tight finish window the cultivar is known for. The recessive ruderalis trait demands this depth of work to express uniformly.

Breeding Goal

Stabilise the recessive ruderalis trait in Jupiter OG for uniform auto-trigger.

Selection Focus

Chosen for trichome coverage, stout structure and consistent flowering time across the pack.

Pollen / Mother Source

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

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