Dutch Hawaiian cannabis seeds packaging — Royal King Seeds Ireland
Sativa
THC 18%
🌙 Sleep Aid
SativaFeminisedIn Stock

Dutch Hawaiian Feminised

Grow Dutch Hawaiian Feminised in Ireland. Sativa genetics testing at 18% THC. Known for sleepy, energetic, calm effects. Ships discreetly nationwide with sourced grow figures.

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€14.15EUR
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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 2026-09-12 on 350 seeds at 21-24°C.

Germination rate: 96.0% (n=350)
Last QC test date: 2026-09-12
Indoor yield: 381-548 g/m² (avg across 13 verified grower reports)
Outdoor yield, Ireland: 451-704 g/plant (avg across 4 verified grower reports)

About Dutch Hawaiian Feminised

Growing Dutch Hawaiian in Ireland is a question of rain and wind rather than of heat or latitude. The whole island runs temperate oceanic, so nowhere is meaningfully warmer than anywhere else — what changes as you move west is how many wet days land on the plant while it is in flower. Outdoors that makes bud structure and the 8-9 weeks of bloom the two things worth reading before anything else, because a dense cola and a wet October are a poor combination. Under a tunnel or under lights the argument disappears: Dutch Hawaiian is then judged on its genetics and on nothing else.

Growing it on this island

The pressures here are consistent and they are nearly all about water. Botrytis in dense flower from September onwards is the first, and it is answered with open structure, moving air and a roof — not with anything sprayed on afterwards. Indoors, spider mite and thrips arrive the way they always do, and humidity above 60% in late bloom is what turns a manageable problem into a lost room. Outdoors in a wet spring the slugs do more damage to seedlings than every insect on the plot, and they do it in a single night.

A polytunnel changes the arithmetic on Dutch Hawaiian more than any other single purchase. It adds a fortnight at both ends of the season, keeps the rain off the flower during the weeks that matter, and turns a marginal outdoor crop into a reliable one.

Flavour, aroma and effect

Dutch Hawaiian arrives in order. The first draw at 18% THC gives resin and green wood, clean rather than sweet. The sleepy, energetic, calm character follows in minutes, as attention sharpening. Colour and sound both read busier, and conversation goes further afield than it otherwise would. It holds two to three hours without a spike. Limonene underneath contributes a lift that stops it going heavy.

Terpene breakdown

Primary: Pinene · Secondary: Limonene · Tertiary: Caryophyllene. Temperature decides how much of this profile survives. Low vaporisation at 180-188°C keeps limonene and caryophyllene audible over the pinene; run it hotter, or burn it, and all three collapse into one note that is pleasant enough and tells you nothing.

Who it suits

Who does well with Dutch Hawaiian? 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

😴Sleepy
79% of people reported feeling Sleepy
🤑Energetic
64% of people reported feeling Energetic
🧘Calm
60% of people reported feeling Calm
😊Happy
51% of people reported feeling Happy
🤩Creative
50% of people reported feeling Creative
😎Uplifted
38% of people reported feeling Uplifted
🤗Euphoric
33% of people reported feeling Euphoric
🧠Focused
28% of people reported feeling Focused
🗣️Talkative
16% of people reported feeling Talkative

Best For

✦ Daytime
✦ Creative Projects
✦ Social Activities

Strain Type

Indica 12%Sativa 88%

Strain Data Sheet

🧬THC18% - 22% (Medium-High)
🌿LineageHawaiian × Dutch Treat
🔬TypeFeminised Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestSept – Nov, S. hemisphere (typical)
📏Height91-122 cm
⚖️YieldTypical for type
🏠Yield Indoor43-57 g/m2
🌳Yield Outdoor454 g/plant
⏱Flowering Time8-9 weeks

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.
1
Dutch Hawaiian Feminised
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Dutch Hawaiian 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
F4
Generations
4+
Breeding Programme
F4 Production Line — modern cross stabilisation
Stabilisation Notes — What This Means for Your Grow

A late-2010s cross stabilised over four generations of selection. Dutch Hawaiian grows true-to-type with the cerebral terpene profile that defines the cultivar.

Breeding Goal

Stabilise the Dutch Hawaiian cross over four selection rounds.

Selection Focus

Chosen for clear-headed terpene expression, structural manageability and a finish that lands inside the published window.

Pollen / Mother Source

Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.

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