Humboldt Headband cannabis seeds packaging — Royal King Seeds Ireland
Indica
THC 23%
🎨 Creative
IndicaFeminisedIn Stock

Humboldt Headband Feminised

Humboldt Headband Feminised cannabis seeds for Irish growers. Indica strain · 23% THC · euphoric, creative, focused. Discreet packaging, nationwide delivery, sourced grow figures.

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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 450 seeds at 21-24°C.

Germination rate: 98.0% (n=450)
Last QC test date: 2026-09-08
Indoor yield: 477-626 g/m² (avg across 9 verified grower reports)
Outdoor yield, Ireland: 479-724 g/plant (avg across 8 verified grower reports)

About Humboldt Headband Feminised

Humboldt Headband carries myrcene as its lead note: damp earth and something sweet gone slightly over, the smell of a hedgerow in late August. Caryophyllene sits beneath it and shows up second, dry and peppery, holding the sweeter notes down. The plant tests at 23% THC across a 88/12 split, though what decides whether any of this reaches the jar is the cure, not the seed.

Growing it for aroma

Growing Humboldt Headband for terpene expression and growing it for weight are not the same project, and it is worth deciding which one you are on. The Myrcene/Caryophyllene/Linalool profile does its best work in living soil, where the biology produces compounds a bottle does not contain. Good peat-free compost and worm castings are available in any garden centre here, which makes that approach far less specialist than it sounds.

Stop foliar spraying after the second week of bloom. Anything that lands on a developing trichome is still there at harvest and is tasted rather than seen. In the last three weeks the night temperature decides which terpenes lead: held at 16-18°C the myrcene comes forward, while a warmer finish protects the lighter linalool notes.

Then the cure, which is where Irish growers lose most of what they built. A ten to fourteen day hang wants 17°C and something near 58% humidity, and the ambient air here will not supply either for most of the year — a closed room and a small dehumidifier will. Into glass afterwards, burped twice daily for a fortnight. The caryophyllene layer arrives somewhere in weeks three and four, not before.

Flowering: 60 days (harvest Oct 1st-15th). Indoor yield: 350 gr/m². Outdoor yield: 400 grams. Plant height: 90-120 cm. Medium. Rated easy difficulty.

Flavour, aroma and effect

Humboldt Headband arrives in order. The first draw at 23% THC gives earth and musk, coating rather than sharp. The euphoric, creative, focused, calm 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. The three shift relative to each other across the cure. Straight off the dry the myrcene dominates; three or four weeks sealed in glass at 16-18°C and the linalool underneath comes up to meet it. Vaporising between 180°C and 195°C catches the widest span, because heat takes the lighter linalool molecules first.

Who it suits

Who does well with Humboldt Headband? 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 easy, which means a moderate learning curve that rewards attention without needing specialist kit.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
🤩Creative
70% of people reported feeling Creative
🧠Focused
62% of people reported feeling Focused
🧘Calm
53% of people reported feeling Calm
😌Relaxed
45% of people reported feeling Relaxed
😴Sleepy
45% of people reported feeling Sleepy
😊Happy
31% of people reported feeling Happy
🤤Hungry
27% of people reported feeling Hungry
🌿Stress Relief
13% of people reported feeling Stress Relief

Best For

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 88%Sativa 12%

Strain Data Sheet

🧬THC23% - 28% (High)
🌿LineageIndica-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminised Indica
🌡ClimateCool–temperate / continental
📅HarvestSept – Nov, S. hemisphere (typical)
📏Height90-120 cm. Medium
⚖️YieldTypical for type
🏠Yield Indoor350 gr/m²
🌳Yield Outdoor400 grams
⏱Flowering Time60 days (harvest Oct 1st-15th)

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers are responsible for complying with the law where they live.
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Humboldt Headband Feminised
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💧Waterproof coating
🛡️Aluminium interior lining
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📱QR code verification
🔢Scratchable serial number

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Humboldt Headband Feminised — 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
BX3
Generations
4+
Breeding Programme
Royal King Genetics Backcross Line — BX3 clone-only restabilisation
Stabilisation Notes — What This Means for Your Grow

BX3 is the credible stabilisation point for a clone-only West Coast clone-only cultivar. We worked Humboldt Headband through three backcross generations to recreate the elite cut in seed form. A sibling male pollinates the mother each cycle to drive trait fixation.

Breeding Goal

Translate a clone-only West Coast clone-only cultivar to seed without losing the mother profile.

Selection Focus

Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

Last Batch QC Verified
23 September 2026· 99%+ germination