
Blue Monster Feminized
Grow Blue Monster Feminized in the UK. Indica genetics at 22% THC, known for relaxed, sleepy, happy effects.
About Blue Monster Feminized
Germination & Early Veg (Days 1-14): Blue Monster seeds typically crack within 48 hours using the damp paper towel method and break soil by around day 3. Early growth was squat and vigorous β broad cotyledons followed by wide, dark-green fan leaves typical of the indica heritage. By day 14 expect around four established nodes with tight internodal spacing. Damping off is uncommon at around 70% relative humidity during this phase.
Vegetative Growth (Weeks 3-6): Lateral branching exploded after topping at the fourth node. The plant filled a 60cm x 60cm footprint by week 5, staying under 40cm tall β ideal for UK growers working in compact tent setups.
Flower (Weeks 1-65): This is where the 76/24 genetics of Blue Monster truly revealed itself. The myrcene aroma appeared in week 3 of flower and intensified steadily. Trichome coverage became visually striking from week 5 onward. Final indoor yield: up to 450 g/m2. THC testing at 22%. Difficulty rating: intermediate.
Continuing the Grow Diary
Mid-Flower (Weeks 4-6): The transformation accelerated dramatically. Bud sites that were wispy clusters at week 3 swelled into properly defined colas. Density increased almost daily β squeezing a developing bud at week 5 felt like pressing a firm rubber ball. Fan leaf removal at the start of week 4 improved airflow through the lower canopy, critical since our grow room humidity hovered around 55% through this British autumn.
Late Flower and Ripening (Weeks 63-65): Nutrient input dropped to plain water with a splash of molasses for the final 10 days. The myrcene aroma became powerful enough that carbon filtration was essential β our neighbours would have noticed otherwise. Trichomes progressed from clear to milky across the final fortnight, with amber heads appearing on sugar leaves first. A common harvest window is around 15% amber on the calyxes.
Dry and Cure (Post-Harvest): Whole-plant hang dry in a darkened room at 17Β°C and 58% humidity for 12 days. Stems snapped cleanly rather than bending, confirming the moisture content was appropriate for jarring. After 4 weeks of glass jar curing with twice-daily burping (first 2 weeks) then daily burping (weeks 3-4), the bouquet fully developed. Final weight confirmed the up to 450 g/m2 yield estimate. The caryophyllene secondary terpene became far more pronounced after curing than it was at harvest β a reminder that the drying and curing process genuinely creates flavour rather than merely preserving it.
Flowering: 55-65 days. Indoor yield: up to 450 g/m2. Outdoor yield: up to 450 g/plant. Rated intermediate difficulty. Feminised seeds.
Flavour, Aroma, and Experience
The sensory arc of Blue Monster unfolds in stages. Initial inhalation at 22% THC brings a deep, musky earthiness that coats the palate. The relaxed, sleepy, happy effects emerge within minutes, beginning as a pleasant heaviness behind the eyes that migrates downward through the shoulders, chest, and limbs. By the fifteen-minute mark, a deep physical stillness sets in β not sedation exactly, but a reluctance to move that makes the couch remarkably appealing. Duration runs 2-3 hours at moderate doses. The caryophyllene secondary terpene adds a distinct layer: a grounding warmth that prevents the experience from feeling unanchored.
Terpene Breakdown
Primary: Myrcene Β· Secondary: Caryophyllene Β· Tertiary: Linalool. This particular terpene trio appears frequently in award-winning cultivars and produces a nose that most UK growers find immediately appealing when jars are first opened after curing. The myrcene dominance anchors the aroma, caryophyllene provides mid-range character, and linalool contributes a subtle background note that distinguishes this strain from others sharing the same primary terpene.
Suitability and Recommendations
Who grows Blue Monster successfully? Indoor growers seeking full control over their harvest timeline. Outdoor cultivators who want to decide exactly when flowering begins. Anyone with the space and patience to vegetate this plant to its full potential before triggering bloom. Difficulty is rated intermediate, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered UK-wide in discreet, unbranded packaging with germination guarantee included.
Effects
Strain Type
Strain Data Sheet
Packaging
Feminized Premium
Seeds
authenticity
lining
number
Related Strains

Strawberry Milkshake Feminized
Grow Strawberry Milkshake Feminized in the UK. Hybrid genetics at 19% THC, known for relaxed, happy, euphoric effects.

Fruity Pebbles Feminized
Grow Fruity Pebbles Feminized in the UK. Hybrid genetics at 20% THC, known for uplifted, happy, relaxed effects.

Jane Doe Feminized
Jane Doe Feminized cannabis seeds for UK growers. Hybrid Β· 23% THC Β· relaxed, euphoric, calm. Discreet UK delivery, priced in GBP.

Gorilla Cookies Feminized
Gorilla Cookies Feminized seeds. A indica cultivar at 24% THC delivering euphoric, creative, calm. Grow figures from named sources.
Blue Monster Feminized β Breeder Information
Royal King GeneticsBred and stabilised in-house by Royal King Genetics β 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 Monster has been progressed through four generations of phenotype hunting and selection. Vigour, tight finish window and finishing time are all locked across the pack β every plant performs to the spec sheet.
Cull off-type phenos in Blue Monster through filial selection.
Chosen for resin output, a low-slung stature and a clean indica terpene fingerprint.
Royal King Genetics elite-cut archive β pollen from a maintained S1 line of the original elite mother.