Blob OG cannabis seeds packaging — Royal King Seeds UK
Sativa
THC 25%
⚡ High Potency
SativaFeminisedIn Stock

Blob OG Feminised

Feminised PhotoperiodSee Lab Report →

Blob OG Feminised seeds. A sativa cultivar at 25% THC delivering relaxed, euphoric, creative. Grow figures from named sources.

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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified UK grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-19 on 175 seeds.

Germination rate: 98.9% (n=175)
Last QC test date: 2026-09-19
Indoor yield: 375-548 g/m² (avg across 7 verified grower reports)
Outdoor yield: 537-884 g/plant (avg across 6 verified grower reports)

About Blob OG Feminised

Read Blob OG backwards from the harvest: up to 450 g/m2 under lights, up to 500 g/plant outdoors, with resin filling out towards 25% THC. This 21/79 cultivar spreads its weight gain across the whole of bloom instead of front-loading it the way a quick indica does. Cutting early out of nerves about the weather is the most expensive mistake made with plants of this shape. In Britain that means holding through late September and into October depending on your latitude, because the terpinolene-led profile only fills out in the closing fortnight.

Getting the weight out of this plant

Three stretches of the 70-80 days of bloom decide whether you reach the top of this strain's range (up to 450 g/m2 indoors, up to 500 g/plant outdoors). The rest is maintenance.

The first ten days of flower. What the plant does during the stretch sets canopy height, and canopy height sets how evenly the light lands. It can add half again its height. Supercrop anything that breaks the line of the canopy inside the first week or you will spend the rest of bloom lighting one branch properly and five badly.

Weeks three to five. Terpinolene production climbs through here, and it responds to a day-night temperature gap of 6-8°C. British autumn nights hand that to outdoor growers for free from September; indoors you have to build it, at roughly 25-26°C lights-on and 18-20°C lights-off. Bloom feed goes potassium-heavy around EC 1.6-1.8.

The last ten to fourteen days. Stop feeding and run pH-corrected water. Check trichomes daily under a 60x loupe — cut at 5-10% amber to keep the clear, lifted character intact. Outdoors that lands between late September and mid-October across most of Britain, and the weather forecast should get a vote.

Flowering: 70-80 days. Indoor yield: up to 450 g/m2. Outdoor yield: up to 500 g/plant. Rated intermediate difficulty.

What Blob OG is actually like

Growers report relaxed, euphoric, creative, calm as the defining characteristics and our own notes agree. At 25% THC this sativa sits where most people find a workable window. Vaporised at 175-185°C the first effect is lift and mental energy, suited to work that benefits from it, a long walk, or an afternoon with company. The body stays light throughout, which makes it a genuine daytime option for anyone with a tolerance. The Terpinolene/Limonene pairing leaves a finish that keeps changing across a session.

Best suited to creative work, company, getting outdoors, and daytime use generally.

Terpene breakdown

Primary: Terpinolene · Secondary: Limonene · Tertiary: Ocimene. How this profile survives the journey from flower to vapour depends on temperature. Low vaporisation, 180-188°C, keeps the limonene and ocimene audible over the terpinolene base. Run it hotter, or burn it, and the three collapse into one note — pleasant enough, but none of the complexity that made it worth choosing.

Who it suits

Blob OG suits growers with the basics in place. Understand pH, rough nutrient ratios and light cycles before you commit to it; it asks for competence rather than expertise. Photoperiod genetics leave plant size and harvest date under your control — veg longer for bigger plants, or flip early when space is short. The April to October season accommodates a bloom of 70-80 days comfortably for outdoor growers across the country.

Effects

😌Relaxed
72% of people reported feeling Relaxed
🤗Euphoric
67% of people reported feeling Euphoric
🤩Creative
63% of people reported feeling Creative
🧘Calm
53% of people reported feeling Calm
😊Happy
45% of people reported feeling Happy
🤑Energetic
37% of people reported feeling Energetic
😎Uplifted
31% of people reported feeling Uplifted
🧠Focused
28% of people reported feeling Focused
🗣️Talkative
16% of people reported feeling Talkative

Strain Type

Indica 21%Sativa 79%

Strain Data Sheet

🧬THC25% - 29% (Very High)
🌿LineageSativa-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminised Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height120 – 200 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoorup to 450 g/m2
🌳Yield Outdoorup to 500 g/plant
⏱Flowering Time70-80 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 must comply with all applicable United Kingdom legislation.
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Blob OG Feminised
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Blob OG 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
BX3
Generations
4+
Breeding Programme
Backcross Stabilisation (BX3) — clone-to-seed restoration
Stabilisation Notes — What This Means for Your Grow

BX3 is the credible stabilisation point for a clone-only modern hybrid cultivar. We worked Blob OG through three backcross generations to recreate the elite cut in seed form. A sibling male pollinates the mother each cycle to drive trait fixation.

Breeding Goal

Recreate the Blob OG clone-only cut in stable seed form.

Selection Focus

Chosen for terpene saturation, sativa vigour and a workable finish time despite long-flowering genetics.

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
7 September 2026· 99%+ germination