Blue Crack cannabis seeds packaging — Royal King Seeds Ireland
Indica
THC 22%
🎨 Creative
IndicaFeminisedIn Stock

Blue Crack Feminised

Grow Blue Crack Feminised in Ireland. Indica genetics testing at 22% THC. Known for relaxed, euphoric, focused effects. Ships discreetly nationwide with sourced grow figures.

Select Pack Size
€13.23EUR
1
🇮🇪Free Irish Delivery
🌱Germination Promise
🔒Unmarked Packaging
⚗

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 2026-09-08 on 225 seeds at 21-24°C.

Germination rate: 96.8% (n=225)
Last QC test date: 2026-09-08
Indoor yield: 465-590 g/m² (avg across 9 verified grower reports)
Outdoor yield, Ireland: 451-604 g/plant (avg across 4 verified grower reports)

About Blue Crack Feminised

Growing Blue Crack in Ireland is a question of rain and wind rather than of heat or latitude. The whole island runs temperate oceanic, so nowhere is meaningfully warmer than anywhere else — what changes as you move west is how many wet days land on the plant while it is in flower. Outdoors that makes bud structure and the 55-65 days of bloom the two things worth reading before anything else, because a dense cola and a wet October are a poor combination. Under a tunnel or under lights the argument disappears: Blue Crack is then judged on its genetics and on nothing else.

Growing it on this island

The pressures here are consistent and they are nearly all about water. Botrytis in dense flower from September onwards is the first, and it is answered with open structure, moving air and a roof — not with anything sprayed on afterwards. Indoors, spider mite and thrips arrive the way they always do, and humidity above 60% in late bloom is what turns a manageable problem into a lost room. Outdoors in a wet spring the slugs do more damage to seedlings than every insect on the plot, and they do it in a single night.

A polytunnel changes the arithmetic on Blue Crack more than any other single purchase. It adds a fortnight at both ends of the season, keeps the rain off the flower during the weeks that matter, and turns a marginal outdoor crop into a reliable one.

Flavour, aroma and effect

Blue Crack arrives in order. The first draw at 22% THC gives earth and musk, coating rather than sharp. The relaxed, euphoric, focused, energetic 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. Caryophyllene underneath contributes warmth that keeps it anchored.

Terpene breakdown

Primary: Myrcene · Secondary: Caryophyllene · 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, caryophyllene 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

Who does well with Blue Crack? 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 intermediate, which means a moderate learning curve that rewards attention without needing specialist kit.

Effects

😌Relaxed
72% of people reported feeling Relaxed
🤗Euphoric
67% of people reported feeling Euphoric
🧠Focused
62% of people reported feeling Focused
🤑Energetic
50% of people reported feeling Energetic
😴Sleepy
52% of people reported feeling Sleepy
😊Happy
38% of people reported feeling Happy
🤤Hungry
34% of people reported feeling Hungry
🧘Calm
26% of people reported feeling Calm
🌿Stress Relief
13% of people reported feeling Stress Relief

Best For

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 77%Sativa 23%

Strain Data Sheet

🧬THC22% - 25% (High)
🌿LineageBlue Dream × Green Crack
🔬TypeFeminised Indica
🌡ClimateCool–temperate / continental
📅HarvestSept – Nov, S. hemisphere (typical)
📏Height90-120 cm. Medium
⚖️YieldMedium – High
🏠Yield Indoorup to 400 g/m2
🌳Yield Outdoorup to 450 g/plant
⏱Flowering Time55-65 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.
1
Blue Crack Feminised
royalkingseeds.ie
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

Related Strains

Green Dream cannabis seeds packaging — Royal King Seeds Ireland
Sativa
THC 21%
🌙 Sleep Aid

Green Dream Feminised

RelaxedEuphoricCreative
▼
€13.23EUR
Cracker Jack cannabis seeds packaging — Royal King Seeds Ireland
Indica
THC 20%
🎨 Creative

Cracker Jack Feminised

CreativeFocusedCalm
▼
€14.60EUR
Disney Blue cannabis seeds packaging — Royal King Seeds Ireland
Indica
THC 24%
🎨 Creative

Disney Blue Feminised

EuphoricCreativeCalm
▼
€11.86EUR
Flowerbomb Kush cannabis seeds packaging — Royal King Seeds Ireland
Indica
THC 19%
🎨 Creative

Flowerbomb Kush Feminised

CreativeEnergeticCalm
▼
€11.41EUR

Blue Crack 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
F4 Production Line — modern cross stabilisation
Stabilisation Notes — What This Means for Your Grow

Blue Crack has been progressed through four generations of phenotype hunting and selection. Vigour, purple expression and finishing time are all locked across the pack — every plant performs to the spec sheet.

Breeding Goal

Cull off-type phenos in Blue Crack through filial selection.

Selection Focus

Chosen for resin density, indica-leaning frame and tight internodes that suit indoor production.

Pollen / Mother Source

Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.

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