
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.
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.
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
Best For
Strain Type
Strain Data Sheet
Packaging
Feminised Premium
Seeds
authenticity
lining
number
Related Strains

Green Dream Feminised
Grow Green Dream Feminised in Ireland. Sativa genetics testing at 21% THC. Known for relaxed, euphoric, creative effects. Ships discreetly nationwide with sourced grow figures.

Cracker Jack Feminised
Cracker Jack Feminised cannabis seeds for Irish growers. Indica strain · 20% THC · creative, focused, calm. Discreet packaging, nationwide delivery, sourced grow figures.

Disney Blue Feminised
Disney Blue Feminised cannabis seeds for Irish growers. Indica strain · 24% THC · euphoric, creative, calm. Discreet packaging, nationwide delivery, sourced grow figures.

Flowerbomb Kush Feminised
Flowerbomb Kush Feminised cannabis seeds for Irish growers. Indica strain · 19% THC · creative, energetic, calm. Discreet packaging, nationwide delivery, sourced grow figures.
Blue Crack 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.
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.
Cull off-type phenos in Blue Crack through filial selection.
Chosen for resin density, indica-leaning frame and tight internodes that suit indoor production.
Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.