Cannatonic CBD cannabis seeds packaging — Royal King Seeds UK
Cbd
THC 9%
🧘 Relaxing
CBDFeminisedIn Stock

Cannatonic CBD Feminised

Feminised PhotoperiodSee Lab Report →

Cannatonic CBD Feminised — cbd cannabis seeds suited to UK growing conditions. 9% THC with focused, calm effects. Fast, discreet UK delivery.

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£11.74
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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 2026-09-02 on 475 seeds.

Germination rate: 98.3% (n=475)
Last QC test date: 2026-09-02
Indoor yield: 317-464 g/m² (avg across 15 verified grower reports)
Outdoor yield: 527-754 g/plant (avg across 6 verified grower reports)

About Cannatonic CBD Feminised

Read Cannatonic CBD backwards from the harvest: 500 g/m2 under lights, 500-650 g/plant outdoors, with resin filling out towards 9% THC. Weight goes on evenly across the 8-10 weeks of bloom, with a clear surge in the last two weeks that rewards leaving the plant alone. The 48/52 split gives you calyx density and an even spread of resin rather than one at the cost of the other. Outdoors, late September to mid-October is the window that misses the wettest of the finish across most of the country while still letting the myrcene arrive.

Getting the weight out of this plant

Three stretches of the 8-10 weeks of bloom decide whether you reach the top of this strain's range (500 g/m2 indoors, 500-650 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. Somewhere around a third is typical. One pass of low-stress training over the tallest shoots keeps the top flat.

Weeks three to five. Myrcene 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 10-15% amber for the middle of the range. Outdoors that lands between late September and mid-October across most of Britain, and the weather forecast should get a vote.

Flowering: 8-10 weeks. Indoor yield: 500 g/m2. Outdoor yield: 500-650 g/plant. Rated intermediate difficulty.

What Cannatonic CBD is actually like

Growers report focused, calm as the defining characteristics and our own notes agree. At 9% THC this cbd sits where the balance is the selling point. Taken small it stays functional; taken larger it relaxes properly. The ${indica}/${sativa} split means the direction is set by how much you take rather than fixed by the genetics. The Myrcene/Linalool pairing leaves earth and faint sweetness on the palate, with fruit at the end.

Best suited to most occasions — the dose does the steering.

Terpene breakdown

Primary: Myrcene · Secondary: Linalool · Tertiary: Pinene. How this profile survives the journey from flower to vapour depends on temperature. Low vaporisation, 180-188°C, keeps the linalool and pinene audible over the myrcene 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

Cannatonic CBD 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 8-10 weeks comfortably for outdoor growers across the country.

Effects

🧠Focused
76% of people reported feeling Focused
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
🌿Stress Relief
47% of people reported feeling Stress Relief
💊Pain Relief
44% of people reported feeling Pain Relief
😊Happy
38% of people reported feeling Happy
😴Sleepy
38% of people reported feeling Sleepy
💆Body High
24% of people reported feeling Body High
✨Tingling
16% of people reported feeling Tingling

Strain Type

Indica 48%Sativa 52%

Strain Data Sheet

🧬THC9% - 12% (Medium)
🌿LineageHigh-CBD Hybrid (Undisclosed Lineage)
🔬TypeFeminised Cbd
🌡ClimateTemperate, adaptable
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height100 – 160 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor500 g/m2
🌳Yield Outdoor500-650 g/plant
⏱Flowering Time8-10 weeks

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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Cannatonic CBD Feminised
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Cannatonic CBD 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
F4
Generations
4+
Breeding Programme
CBD Programme — four-generation cannabinoid ratio stabilisation
Stabilisation Notes — What This Means for Your Grow

Cannatonic is a CBD-stabilised line worked over four rounds to fix CBD-dominance into the population. CBD-dominance is recessive — multi-generation selection is required — and at F4 the CBD:THC ratio expresses uniformly across the pack.

Breeding Goal

Pin the recessive CBD-dominant trait in Cannatonic for therapeutic reliability.

Selection Focus

Chosen for CBD:THC ratio expression, low-THC consistency and a bud structure suited to medical production.

Pollen / Mother Source

Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.

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