CBD Critical Mass cannabis seeds packaging — Royal King Seeds Ireland
Cbd
THC 7%
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CBD Critical Mass Feminised

CBD Critical Mass Feminised — premium cbd cannabis seeds suited to Irish growing conditions. 7% THC with relaxed, calm, focused effects. Discreet delivery across Ireland, with sourced grow figures on every strain page.

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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 2026-09-07 on 200 seeds at 20-23°C.

Germination rate: 99.0% (n=200)
Last QC test date: 2026-09-07
Indoor yield: 342-452 g/m² (avg across 8 verified grower reports)
Outdoor yield, Ireland: 378-626 g/plant (avg across 7 verified grower reports)

About CBD Critical Mass Feminised

Days 1-14, germination and early veg. CBD Critical Mass generally cracks within about two days on damp kitchen paper and is above the medium by day three. The first fortnight came in even, without either racing or stalling. Four solid nodes by day 14 and the spacing that suggests the frame it will build. Keep the humidity near 70% and damping off stops being a concern.

Weeks 3-6, veg. A top at node four and a few ties produced six even leaders and a flat canopy across a 70cm square by the time it was flipped.

Bloom, weeks 1-8. The 41/59 character came through clearly. Myrcene was noticeable by week three and kept building; resin was obvious without a loupe from about week five. Indoor yield: 500 g/m2. Height: Medium. Tested at 7%. Rated medium.

The rest of the run

Weeks 4-6, mid-bloom. Loose clusters from week three closed up into defined colas. Development stayed even across the canopy, which is what the veg training was for: eight comparable colas instead of one dominant top and a set of stragglers.

Ripening, weeks 6-8. Plain water for the last ten days. Myrcene was strong enough by then that carbon filtration was not optional in a terraced house. Heads went clear to milky over the final fortnight, amber showing on sugar leaves first, and around 15% amber on the calyxes is a defensible place to stop.

Drying and curing. Hung whole in the dark at 17°C and 58% humidity for twelve days, both held by a dehumidifier because an October room here will hold neither. Stems snapped instead of bending, which is the only test worth trusting. Four weeks in glass after that. The 500 g/m2 figure held up. Linalool was far more present after the cure than at harvest — the cure makes flavour, it does not merely preserve it.

Flowering: 8 weeks. Indoor yield: 500 g/m2. Outdoor yield: Up to 1200 gr./plant. Plant height: Medium. Rated medium difficulty. Feminised seeds.

What CBD Critical Mass is like in practice

The catalogue lists relaxed, calm, focused, and that matches what growers here report back. At 7% THC this cbd sits where the balance is the argument for it. Small doses stay functional, larger ones relax properly, and the 41/59 split means the direction is set by the amount rather than fixed by the plant. The Myrcene and Linalool together leave earth and faint sweetness, with fruit at the end.

Suited to most occasions, with the dose doing the steering.

Terpene breakdown

Primary: Myrcene · Secondary: Linalool · Tertiary: Pinene. Temperature decides how much of this profile survives. Low vaporisation at 180-188°C keeps linalool and pinene audible over the myrcene; run it hotter, or burn it, and all three collapse into one note that is pleasant enough and tells you nothing.

Who it suits

CBD Critical Mass 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 weeks fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.

Effects

😌Relaxed
72% of people reported feeling Relaxed
🧘Calm
67% of people reported feeling Calm
🧠Focused
62% of people reported feeling Focused
🌿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

Best For

✦ Therapeutic
✦ Pain Management
✦ Anxiety Relief

Strain Type

Indica 41%Sativa 59%

Strain Data Sheet

🧬THC7% - 12% (Medium)
🌿LineageCritical Mass × CBD-Rich (CBD Crew)
🔬TypeFeminised Cbd
🌡ClimateTemperate, adaptable
📅HarvestSept – Nov, S. hemisphere (typical)
📏HeightMedium
⚖️YieldMedium – High
🏠Yield Indoor500 g/m2
🌳Yield OutdoorUp to 1200 gr./plant
⏱Flowering Time8 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 are responsible for complying with the law where they live.
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CBD Critical Mass Feminised
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🛡️Aluminium interior lining
🏷️Protective sticker
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🔢Scratchable serial number

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CBD Critical Mass 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
Royal King Genetics CBD Line — recessive trait fixing
Stabilisation Notes — What This Means for Your Grow

CBD Critical Mass sits inside our CBD programme. F4 is the credible stabilisation point for a CBD-dominant cultivar — four rounds of selection lock the cannabinoid ratio that growers and patients are paying for.

Breeding Goal

Stabilise the CBD:THC ratio in CBD Critical Mass for uniform pack expression.

Selection Focus

Chosen for CBD-dominance, cannabinoid ratio uniformity and a clean therapeutic terpene profile.

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
22 September 2026· 99%+ germination