
Alpine Star Feminized
Alpine Star Feminized seeds. A indica cultivar at 24% THC delivering relaxed, sleepy, happy. Grow figures from named sources.
About Alpine Star Feminized
Here is what Alpine Star delivers at harvest, with resin production peaking at 24% THC. The picture comes together when you work backwards through the 49-63 days indoors, harvest late September outdoors window. The bulk of your final weight accumulates during weeks 5 through 8 β a period where the 65/35 genetics stack calyxes rapidly and trichome coverage shifts from scattered to frosted. UK outdoor growers targeting an early-October harvest should count back from their local first-frost date accordingly, aiming for buds to enter this critical fattening stage through late August and early September while daylight is still generous.
Maximising Your Harvest
To reach the upper end of this strain's yield potential, focus your efforts on three critical windows during the 49-63 days indoors, harvest late September outdoors period.
Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Expect modest stretch of 20-30% β a quick defoliation of lower fan leaves at day 7 redirects energy to developing bud sites.
Window 2: Weeks 3-5 of bloom. Myrcene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8Β°C to encourage terpene accumulation β UK autumn evenings (September-October) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26Β°C during lights-on and 18-20Β°C during lights-off. Supplement with potassium-heavy bloom nutrients at EC 1.6-1.8.
Window 3: Final 10-14 days before harvest. Cease all nutrient input and flush with pH-adjusted water. Monitor trichomes daily with a 60x jeweller's loupe β harvest at 15-20% amber for the full-bodied effect this genetics is known for. UK outdoor growers: this window typically falls from late September through mid-October.
Flowering: 49-63 days indoors, harvest late September outdoors. Rated intermediate difficulty.
What to Expect When Using Alpine Star
UK customers report relaxed, sleepy, happy as the defining characteristics, and our experience aligns with that consensus. At 24% THC, this indica sits in a potency bracket where dosage control genuinely matters. A single bowl in a vaporiser at 185Β°C produces a manageable, pleasant body relaxation with intact mental function β perfect for winding down at the end of a long day. Increasing the dose shifts the experience firmly towards physical sedation, and many users find this their preferred nighttime cultivar during the cooler months. The Myrcene/Humulene terpene combination imparts a flavour that lingers on the palate β earthy and slightly sweet with a fruit-like finish.
Ideal settings: quiet evenings, film nights, post-exercise recovery, and sleep preparation.
Terpene Breakdown
Primary: Myrcene Β· Secondary: Humulene Β· Tertiary: Linalool. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with myrcene presence, but after three to four weeks in sealed glass jars at 16-18Β°C, the linalool undertone strengthens and the overall bouquet develops a layered complexity. Vaporisation between 180Β°C and 195Β°C captures the broadest spectrum of these terpenes β higher temperatures degrade the more volatile linalool molecules first.
Suitability and Recommendations
Alpine Star suits growers with fundamental skills already established. You should understand pH management, basic nutrient ratios, and light cycle requirements before committing to this cultivar β it will not hold your hand, but it will not punish minor mistakes harshly either. Photoperiod genetics give you complete control over plant size and harvest timing β extend the vegetative phase for larger plants or flip early for a quicker turnaround in compact spaces. The UK growing season (April through October) accommodates the 49-63 days indoors, harvest late September outdoors bloom period comfortably for outdoor cultivators across the country. Shipped discreetly across the UK with our germination guarantee.
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Strain Data Sheet
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Feminized Premium
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Alpine Star 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.
The Alpine Star hybrid sits in the middle of the modern dispensary lineage. Two backcross rounds layered on top of the original cross have locked resin density and finish-time uniformity across the pack.
Stabilise the Alpine Star cross into a seed-uniform line.
Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.
Royal King Genetics breeding facility β pollen from internally selected sibling males of the recurrent parent.