
Crystal Coma Auto
Grow Crystal Coma Auto in the UK. Sativa genetics at 30% THC, known for euphoric, creative effects.
About Crystal Coma Auto
Germination & Early Veg (Days 1-14): Crystal Coma seeds typically crack within 48 hours using the damp paper towel method and break soil by around day 3. Early growth was rapid and upright — narrow first leaves reaching eagerly towards the light from day one. By the end of week two, five nodes were visible with noticeable spacing between each, signalling the sativa-dominant growth pattern ahead. Damping off is uncommon at around 70% relative humidity during this phase.
Vegetative Growth (Weeks 3-6): Vertical growth demanded attention. Even with low-stress training started in week 3, this plant wanted to climb. We bent the main stem at a 90-degree angle in week 4 and the secondary branches quickly caught up, creating a naturally flat canopy by week 6.
Flower (Weeks 1-65): This is where the 18/82 genetics of Crystal Coma truly revealed itself. The limonene aroma appeared in week 3 of flower and intensified steadily. Trichome coverage became visually striking from week 5 onward. Final indoor yield: up to 300 g/m2. THC testing at 30%. 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. The elongated bud structure continued developing lengthwise, with fresh calyxes stacking along the main stems. Interestingly, the secondary branches produced proportionally larger buds than expected — the open structure allowed light to reach lower sites that a bushier plant would have shaded out entirely.
Late Flower and Ripening (Weeks 63-65): Nutrient input dropped to plain water with a splash of molasses for the final 10 days. The limonene aroma became powerful enough that carbon filtration was essential — 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 17°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 300 g/m2 yield estimate. The pinene secondary terpene became far more pronounced after curing than it was at harvest — a reminder that the drying and curing process genuinely creates flavour rather than merely preserving it.
Flowering: 55-65 days. Indoor yield: up to 300 g/m2. Outdoor yield: up to 400 g/plant. Rated intermediate difficulty. Regular seeds with autoflowering genetics.
Flavour, Aroma, and Experience
The sensory arc of Crystal Coma unfolds in stages. Initial inhalation at 30% THC brings a bright, almost sparkling citrus note that lifts the palate. The euphoric, creative effects emerge within minutes, arriving as a noticeable sharpening of sensory perception. Colours look more saturated, music sounds richer, and conversations take interesting tangential paths. This cerebral engagement sustains for 2-3 hours with a gentle plateau rather than a sudden peak and crash. The pinene secondary terpene adds a distinct layer: a mental alertness that keeps cognition crisp.
Terpene Breakdown
Primary: Limonene · Secondary: Pinene · Tertiary: Terpinolene. 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 limonene dominance anchors the aroma, pinene provides mid-range character, and terpinolene contributes a subtle background note that distinguishes this strain from others sharing the same primary terpene.
Suitability and Recommendations
Who grows Crystal Coma successfully? Balcony growers in flats from Brighton to Glasgow. Regional cultivators wanting a quick-turnaround outdoor crop. Indoor growers with limited headroom in small tents. The autoflowering genetics run on their own internal clock — no light schedule adjustments, no stress about light leaks, and harvest arrives 10-12 weeks after germination regardless of the season. 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
Regular
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.

Jane Doe Feminized
Jane Doe Feminized cannabis seeds for UK growers. Hybrid · 23% THC · 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.

Lowryder Auto
Lowryder Auto seeds. A hybrid cultivar at 15% THC delivering focused, calm. Grow figures from named sources.
Crystal Coma Auto — 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.
Crystal Coma is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the haze-character terps the cultivar is known for. The recessive ruderalis trait demands this depth of work to express uniformly.
Lock the autoflower trait in Crystal Coma through five generations of selection.
Chosen for terpene saturation, sativa vigour and a workable finish time despite long-flowering genetics.
Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.