Critical Kush cannabis seeds packaging — Royal King Seeds Ireland
Indica
THC 21%
📈 High Yield
IndicaFeminisedIn Stock

Critical Kush Feminised

Critical Kush Feminised cannabis seeds for Irish growers. Indica strain · 21% THC · euphoric, calm. Discreet packaging, nationwide delivery, sourced grow figures.

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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 2026-09-16 on 450 seeds at 21-24°C.

Germination rate: 98.9% (n=450)
Last QC test date: 2026-09-16
Indoor yield: 437-610 g/m² (avg across 17 verified grower reports)
Outdoor yield, Ireland: 385-646 g/plant (avg across 8 verified grower reports)

About Critical Kush Feminised

Does Critical Kush finish outdoors in Ireland? It does, planted out at the end of May and cut by early October. A compact 87/13 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 55-60 days, so the harvest date is set by the calendar far more than by your technique.

What should I expect to take off it? 550-650 g/m2 indoors and 1000 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 21% 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 Critical Kush

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 87/13 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 55-60 days of bloom completely; outdoors the plant gets light no lamp matches and can reach 1000 g/plant, and pays for it in rain. Flowering: 55-60 days. Indoor yield: 550-650 g/m2. Outdoor yield: 1000 g/plant. Plant height: 100-110 cm. Rated easy difficulty.

Flavour, aroma and effect

Critical Kush arrives in order. The first draw at 21% THC gives peppercorn heat that lands at the back of the throat. The euphoric, calm character follows in minutes, as weight behind the eyes that works down through the shoulders. By a quarter of an hour it reads as physical stillness rather than sedation — a strong disinclination to stand up. Two to three hours at a sensible dose. Myrcene underneath contributes depth beneath the rest.

Terpene breakdown

Primary: Caryophyllene · Secondary: Myrcene · Tertiary: Bisabolol. 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. Caryophyllene anchors it, myrcene holds the middle, and bisabolol sits behind both — the last of those being what separates this from other strains leading on the same terpene.

Who it suits

Who does well with Critical Kush? Indoor growers who want to choose their own timeline. Tunnel growers who want to decide when flowering starts rather than letting August decide it. Anyone with the space to veg it properly first. Rated easy, which means a moderate learning curve that rewards attention without needing specialist kit.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
😴Sleepy
58% of people reported feeling Sleepy
😊Happy
45% of people reported feeling Happy
🤤Hungry
41% of people reported feeling Hungry
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Best For

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 87%Sativa 13%

Strain Data Sheet

🧬THC21% - 24% (High)
🌿LineageCritical Mass × OG Kush
🔬TypeFeminised Indica
🌡ClimateCool–temperate / continental
📅HarvestSept – Nov, S. hemisphere (typical)
📏Height100-110 cm
⚖️YieldHigh
🏠Yield Indoor550-650 g/m2
🌳Yield Outdoor1000 g/plant
⏱Flowering Time55-60 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 are responsible for complying with the law where they live.
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Critical Kush 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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Critical Kush 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

Critical Kush has been the target of countless seed-bank backcross programmes. Ours is BX3 — three rounds of crossing the elite cut back to the parental line until trait expression evened out. The pack grows true to the mother cut.

Breeding Goal

Translate a clone-only modern hybrid cultivar to seed without losing the mother profile.

Selection Focus

Chosen for resin output, a low-slung stature and a clean indica terpene fingerprint.

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
19 September 2026· 99%+ germination