
Blackberry Rhino Feminised
Blackberry Rhino Feminised — premium indica cannabis seeds suited to Irish growing conditions. 13% THC with relaxed, euphoric, focused effects. Discreet delivery across Ireland, with sourced grow figures on every strain page.
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 2026-09-19 on 500 seeds at 20-23°C.
About Blackberry Rhino Feminised
Everything about Blackberry Rhino at harvest follows from one decision, which is when you stop. The figures are Up to 450g/m² indoors and Up to 550 gr outdoors, with resin filling towards 13% THC. Weight arrives late on a plant this indica-leaning — the 74/26 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 8-9 weeks of bloom account for most of the difference between a good result and an average one on a plant rated Up to 450g/m² indoors and Up to 550 gr 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. Myrcene 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: 8-9 weeks. Indoor yield: Up to 450g/m². Outdoor yield: Up to 550 gr. Plant height: Medium. Rated easy difficulty.
What Blackberry Rhino is like in practice
The catalogue lists relaxed, euphoric, focused, calm, and that matches what growers here report back. At 13% 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 Myrcene and Humulene together leave earth and faint sweetness, with fruit at the end.
Suited to evenings in, recovery after work, and the hour before sleep.
Terpene breakdown
Primary: Myrcene · Secondary: Humulene · 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. Myrcene anchors it, humulene 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
Blackberry Rhino 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. Photoperiod genetics leave plant size and harvest date under your control — veg longer for a bigger plant, or flip early when the ceiling is low. A bloom of 8-9 weeks fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.
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Blackberry Rhino Feminised — Breeder Information
Royal King GeneticsBred 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.
Blackberry Rhino runs through our F4 programme. Four cycles of phenotype selection have removed the worst of the trait variation; what is left is a tight, predictable population for production.
Cull off-type phenos in Blackberry Rhino through filial selection.
Chosen for resin output, a low-slung stature and a clean indica terpene fingerprint.
Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.