Kahuna cannabis seeds packaging — Royal King Seeds UK
SativaAuto
THC 20%
😊 Beginner Pick
SativaAutoflowerIn Stock

Kahuna Auto

AutoflowerSee Lab Report →

Kahuna Auto seeds. A sativa cultivar at 20% THC delivering euphoric, creative, calm. Grow figures from named sources.

Select Pack Size
£11.74
1
🇬🇧Free AU Delivery
🌱Germination Promise
🔒Unmarked Packaging
⚗

Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified UK grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-12 on 300 seeds.

Germination rate: 98.8% (n=300)
Last QC test date: 2026-09-12
Indoor yield: 399-516 g/m² (avg across 11 verified grower reports)
Outdoor yield: 513-824 g/plant (avg across 6 verified grower reports)

About Kahuna Auto

Where you grow Kahuna in Britain matters less than when you start it. This is one temperate maritime climate with a real north-south gradient: the south coast opens and closes its season around a fortnight either side of the central belt or upland Wales. Heat is almost never the constraint here. The wet finish is — rain sitting in dense flower through late September and October is what starts botrytis, and it ends more British outdoor crops than every insect on the plot combined. That puts the 60-70 days flowering window and the bud structure ahead of everything else on this page. Under lights none of it applies: daylength, temperature and humidity are yours to set, and Kahuna can be run anywhere in the country on its merits.

The pressures on a British grow are fairly predictable. Damp is the first of them: botrytis in dense flower from September on, answered with open bud structure and moving air rather than with a spray. Indoors it is spider mite and thrips that arrive, and humidity above 60% in late bloom is what turns a contained problem into a lost room. Outdoors in a wet spring the slugs take more seedlings than every insect put together, and they do it overnight.

What Kahuna is actually like

Growers report euphoric, creative, calm as the defining characteristics and our own notes agree. At 20% THC this sativa sits where most people find a workable window. Vaporised at 175-185°C the first effect is lift and mental energy, suited to work that benefits from it, a long walk, or an afternoon with company. The body stays light throughout, which makes it a genuine daytime option for anyone with a tolerance. The Terpinolene/Limonene pairing leaves a finish that keeps changing across a session.

Best suited to creative work, company, getting outdoors, and daytime use generally.

Terpene breakdown

Primary: Terpinolene · Secondary: Limonene · Tertiary: Ocimene. How this profile survives the journey from flower to vapour depends on temperature. Low vaporisation, 180-188°C, keeps the limonene and ocimene audible over the terpinolene base. Run it hotter, or burn it, and the three collapse into one note — pleasant enough, but none of the complexity that made it worth choosing.

Who it suits

Kahuna suits growers with the basics in place. Understand pH, rough nutrient ratios and light cycles before you commit to it; it asks for competence rather than expertise. Autoflowering genetics take the light cycle out of the equation, which suits balcony growers, anyone working around British daylight hours, and anyone who wants the whole thing over quickly. The April to October season accommodates a bloom of 60-70 days comfortably for outdoor growers across the country.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
🤩Creative
70% of people reported feeling Creative
🧘Calm
60% of people reported feeling Calm
😊Happy
51% of people reported feeling Happy
🤑Energetic
44% of people reported feeling Energetic
😎Uplifted
38% of people reported feeling Uplifted
🧠Focused
35% of people reported feeling Focused
🗣️Talkative
23% of people reported feeling Talkative
💪Motivated
24% of people reported feeling Motivated

Strain Type

Indica 14%Sativa 86%

Strain Data Sheet

🧬THC20% - 24% (High)
🌿LineageSuper Skunk × Big Skunk Korean × Jack Herer × Afghan Hawaiian
🔬TypeAutoflower Sativa
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height60 – 100 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoorup to 500 g/m2
🌳Yield Outdoorup to 500 g/plant
⏱Flowering Time60-70 days

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
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 United Kingdom legislation.
1
Kahuna Auto
royalkingseeds.co.uk
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

Related Strains

Charlie Sheen cannabis seeds packaging — Royal King Seeds UK
HybridAuto
THC 19%
😊 Beginner Pick

Charlie Sheen Auto

EuphoricHappyRelaxed
▼
£9.78
OG Chem cannabis seeds packaging — Royal King Seeds UK
Sativa
THC 20%
🎨 Creative

OG Chem Feminised

EuphoricHappyUplifted
▼
£11.35
Marcosus Marshmellow cannabis seeds packaging — Royal King Seeds UK
Indica
THC 14%
🎨 Creative

Marcosus Marshmellow Feminised

EuphoricCreativeFocused
▼
£10.57
Godberry cannabis seeds packaging — Royal King Seeds UK
Indica
THC 19%
📈 High Yield

Godberry Feminised

EuphoricCalm
▼
£11.35

Kahuna Auto — 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
F5
Generations
5+
Breeding Programme
Autoflower Programme — five-generation auto trait fixing
Stabilisation Notes — What This Means for Your Grow

Kahuna 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.

Breeding Goal

Stabilise the recessive ruderalis trait in Kahuna for uniform auto-trigger.

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

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