
Cannatonic Feminised
Cannatonic Feminised — premium indica cannabis seeds suited to Irish growing conditions. 12% THC with euphoric, calm 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 2026-09-05 on 275 seeds at 20-23°C.
About Cannatonic Feminised
Does Cannatonic finish outdoors in Ireland? It does, planted out at the end of May and cut by early October. A compact 84/16 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 9-10 weeks, so the harvest date is set by the calendar far more than by your technique.
What should I expect to take off it? 500 g/m2 indoors and 250-400 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 12% 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 Cannatonic
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 84/16 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 9-10 weeks of bloom completely; outdoors the plant gets light no lamp matches and can reach 250-400 g/plant, and pays for it in rain. Flowering: 9-10 weeks. Indoor yield: 500 g/m2. Outdoor yield: 250-400 g/plant. Plant height: Short. Rated medium difficulty.
What Cannatonic is like in practice
The catalogue lists euphoric, calm, and that matches what growers here report back. At 12% 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
Cannatonic 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 9-10 weeks fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.
Effects
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Strain Data Sheet
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Feminised Premium
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Cannatonic 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.
Cannatonic 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 Cannatonic through filial selection.
Chosen for indica vigour, compact bud formation and a reliable finish window.
Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.