Hercules cannabis seeds packaging — Royal King Seeds the UK
Indica
THC 21%
📈 High Yield
IndicaFeminizedIn Stock

Hercules Feminized

Feminized PhotoperiodSee Lab Report →

Hercules Feminized cannabis seeds for UK growers. Indica · 21% THC · euphoric, calm. Discreet UK delivery, priced in GBP.

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£9.76
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About Hercules Feminized

Here is what Hercules delivers at harvest, with resin production peaking at 21% THC. The picture comes together when you work backwards through the 8-10 weeks window. The bulk of your final weight accumulates during weeks 5 through 8 — a period where the 89/11 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 8-10 weeks 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% — 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 6-8°C to encourage terpene accumulation — UK autumn evenings (September-October) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26°C during lights-on and 18-20°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 — 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: 8-10 weeks. Rated intermediate difficulty.

Flavour, Aroma, and Experience

The sensory arc of Hercules unfolds in stages. Initial inhalation at 21% THC brings a deep, musky earthiness that coats the palate. The euphoric, calm 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 — 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 · Secondary: Caryophyllene · 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 16-18°C, the linalool undertone strengthens and the overall bouquet develops a layered complexity. Vaporisation between 180°C and 195°C captures the broadest spectrum of these terpenes — higher temperatures degrade the more volatile linalool molecules first.

Suitability and Recommendations

Who grows Hercules 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

🤗Euphoric
74% of people reported feeling Euphoric
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
😴Sleepy
58% of people reported feeling Sleepy
😊Happy
45% of people reported feeling Happy
🤤Hungry
41% of people reported feeling Hungry
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Strain Type

Indica 89%Sativa 11%

Strain Data Sheet

🧬THC21% - 24% (High)
🌿LineageIndica-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminized Indica
🌡ClimateCool–temperate / continental
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height90 – 120 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor400 – 500 g/m² (typical)
🌳Yield Outdoor400 – 600 g/plant (typical)
Flowering Time8-10 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable UK Commonwealth, state, and territory legislation.
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Hercules Feminized
royalkingseeds.co.uk
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Hercules Feminized — 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
BX2
Generations
3+
Breeding Programme
Royal King Genetics Backcross Line — BX2 modern hybrid stabilisation
Stabilisation Notes — What This Means for Your Grow

Two backcross generations to the recurrent parent have welded Hercules into a stable seed line. The cross-derived purple expression expresses uniformly — no surprise-pheno hunting once the pack pops.

Breeding Goal

Fix parent-cut traits in Hercules without narrowing the population too far.

Selection Focus

Chosen for indica vigour, compact bud formation and a reliable finish window.

Pollen / Mother Source

Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.

Last Batch QC Verified
23 December 2025· 99%+ germination