U2 Kush cannabis seeds packaging — Royal King Seeds UK
IndicaAuto
THC 24%
😊 Beginner Pick
IndicaAutoflowerIn Stock

U2 Kush Auto

AutoflowerSee Lab Report →

U2 Kush Auto cannabis seeds for UK growers. Indica · 24% THC · creative, uplifted, calm. Discreet UK delivery, priced in GBP.

Select Pack Size
£9.39
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 2026-09-23 on 175 seeds.

Germination rate: 96.7% (n=175)
Last QC test date: 2026-09-23
Indoor yield: 480-614 g/m² (avg across 8 verified grower reports)
Outdoor yield: 616-948 g/plant (avg across 3 verified grower reports)

About U2 Kush Auto

Cured properly and opened cold, U2 Kush leads with myrcene: a heavy damp-earth note with something sweet and overripe sitting behind it. Underneath it caryophyllene adds a dry peppery floor, and it reads mid-palate rather than on the first pass. This 88/12 indica tests at 24% THC, but potency is the least interesting number here: what separates U2 Kush from the others on the same shelf is how the aroma behaves across a cure, and that is a question of storage and patience rather than genetics alone.

Growing it for the nose rather than the scales

Chasing terpene expression in U2 Kush pulls against chasing yield, and it is worth knowing which one you are doing before you start. The Myrcene/Caryophyllene/Linalool profile does its best work in living soil, where the microbial side produces secondary compounds a bottle cannot. That is easier here than it sounds: decent peat-free compost and worm castings are a garden centre purchase in most British towns.

Through the 50-60 days of bloom, stop foliar spraying after week two — anything landing on developing trichomes is still there at harvest and you will taste it. The final three weeks decide which terpenes dominate the cured flower: nights held at 16-18°C push myrcene forward, while a warmer finish protects the lighter linalool notes at the top.

The cure is where most of the flavour is lost in this country, and the reason is the weather. A 10-14 day hang wants 15-18°C at 55-60% relative humidity, which a British autumn will not give you in a spare room — a temperature-controlled cupboard or a wine fridge set to 16°C solves it for the price of one wasted harvest. Then into glass, burped twice a day for the first fortnight. The caryophyllene layer that makes this one worth growing does not appear until somewhere between weeks three and four in the jar.

Flowering: 50-60 days. Indoor yield: up to 300 g/m2. Outdoor yield: up to 350 g/plant. Rated intermediate difficulty.

Flavour, aroma and effect

U2 Kush arrives in stages. The first draw at 24% THC brings a musky earthiness that coats rather than cuts. The creative, uplifted, calm character follows within minutes, starting as weight behind the eyes and working down through the shoulders and chest. By about a quarter of an hour it has become a physical stillness — not sedation so much as a strong disinclination to get up. Two to three hours at a moderate dose. The caryophyllene underneath adds a warmth that keeps the whole thing anchored.

Terpene breakdown

Primary: Myrcene · Secondary: Caryophyllene · Tertiary: Linalool. These three build an aroma that keeps moving through the cure. Fresh off the dry it leads with myrcene; after three or four weeks sealed in glass at 16-18°C the linalool underneath comes up and the whole thing gains a layer. Vaporising between 180°C and 195°C catches the widest span of them, since the lighter linalool molecules are the first thing heat destroys.

Who it suits

Who does well with U2 Kush? Balcony growers in flats from Brighton to Glasgow. Anyone wanting one quick outdoor crop rather than a long project. Indoor growers short of headroom. The autoflowering genetics run on their own clock, so there is no light schedule to manage, no anxiety about light leaks, and harvest comes 10-12 weeks from germination whatever the season is doing. Difficulty is rated intermediate, which means a moderate learning curve that rewards attention without demanding a laboratory.

Effects

🤩Creative
77% of people reported feeling Creative
😎Uplifted
65% of people reported feeling Uplifted
🧘Calm
60% of people reported feeling Calm
😌Relaxed
51% of people reported feeling Relaxed
😴Sleepy
52% of people reported feeling Sleepy
😊Happy
38% of people reported feeling Happy
🤤Hungry
34% of people reported feeling Hungry
🤗Euphoric
26% of people reported feeling Euphoric
🌿Stress Relief
13% of people reported feeling Stress Relief

Strain Type

Indica 88%Sativa 12%

Strain Data Sheet

🧬THC24% - 27% (High)
🌿LineageMaster Kush × Bubba Kush
🔬TypeAutoflower Indica
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height60 – 100 cm (typical)
⚖️YieldMedium
🏠Yield Indoorup to 300 g/m2
🌳Yield Outdoorup to 350 g/plant
⏱Flowering Time50-60 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
U2 Kush 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

Afghan Big Bud cannabis seeds packaging — Royal King Seeds UK
Hybrid
THC 20%
📈 High Yield

Afghan Big Bud Feminised

FocusedCalm
▼
£8.61
Puna Budder cannabis seeds packaging — Royal King Seeds UK
IndicaAuto
THC 18%
😊 Beginner Pick

Puna Budder Auto

RelaxedEuphoricCreative
▼
£10.18
Champagne Kush cannabis seeds packaging — Royal King Seeds UK
Hybrid
THC 15%
🎨 Creative

Champagne Kush Feminised

HappyTalkativeUplifted
▼
£11.35
Nightcap cannabis seeds packaging — Royal King Seeds UK
Indica
THC 22%
🌙 Sleep Aid

Nightcap Feminised

RelaxedFocusedCalm
▼
£11.74

U2 Kush 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 Stabilisation (F5) — ruderalis trait fixing
Stabilisation Notes — What This Means for Your Grow

U2 Kush is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the indica relaxation profile the cultivar is known for. The recessive ruderalis trait demands this depth of work to express uniformly.

Breeding Goal

Reach auto trigger and finish-window uniformity for the U2 Kush pack.

Selection Focus

Chosen for resin output, a low-slung stature and a clean indica terpene fingerprint.

Pollen / Mother Source

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

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