NYC Diesel cannabis seeds packaging — Royal King Seeds UK
HybridAuto
THC 20%
😊 Beginner Pick
HybridAutoflowerIn Stock

NYC Diesel Auto

AutoflowerSee Lab Report →

NYC Diesel Auto cannabis seeds for UK growers. Hybrid · 20% THC · energetic, happy, uplifted. Discreet UK delivery, priced in GBP.

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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 2026-09-08 on 425 seeds.

Germination rate: 98.9% (n=425)
Last QC test date: 2026-09-08
Indoor yield: 478-600 g/m² (avg across 10 verified grower reports)
Outdoor yield: 564-810 g/plant (avg across 5 verified grower reports)

About NYC Diesel Auto

Read NYC Diesel backwards from the harvest: 300-350 g/m2 under lights, 75-120 g/plant outdoors, with resin filling out towards 20% THC. Weight goes on evenly across the 55-65 days seed to harvest of bloom, with a clear surge in the last two weeks that rewards leaving the plant alone. The 40/60 split gives you calyx density and an even spread of resin rather than one at the cost of the other. Outdoors, late September to mid-October is the window that misses the wettest of the finish across most of the country while still letting the caryophyllene arrive.

Getting the weight out of this plant

Three stretches of the 55-65 days seed to harvest of bloom decide whether you reach the top of this strain's range (300-350 g/m2 indoors, 75-120 g/plant outdoors). The rest is maintenance.

The first ten days of flower. What the plant does during the stretch sets canopy height, and canopy height sets how evenly the light lands. Somewhere around a third is typical. One pass of low-stress training over the tallest shoots keeps the top flat.

Weeks three to five. Caryophyllene production climbs through here, and it responds to a day-night temperature gap of 6-8°C. British autumn nights hand that to outdoor growers for free from September; indoors you have to build it, at roughly 25-26°C lights-on and 18-20°C lights-off. Bloom feed goes potassium-heavy around EC 1.6-1.8.

The last ten to fourteen days. Stop feeding and run pH-corrected water. Check trichomes daily under a 60x loupe — cut at 10-15% amber for the middle of the range. Outdoors that lands between late September and mid-October across most of Britain, and the weather forecast should get a vote.

Flowering: 55-65 days seed to harvest. Indoor yield: 300-350 g/m2. Outdoor yield: 75-120 g/plant. Plant height: 60-90 cm. Rated intermediate difficulty.

Flavour, aroma and effect

NYC Diesel arrives in stages. The first draw at 20% THC brings dry pepper that registers at the back of the throat. The energetic, happy, uplifted character follows within minutes, as a head and body effect at once. The mind stays clear while the muscles let go by degrees, which is what makes it adaptable — a small dose carries an afternoon, a larger one turns into an evening. The limonene underneath adds a lift that stops it turning heavy.

Terpene breakdown

Primary: Caryophyllene · Secondary: Limonene · Tertiary: Myrcene. This combination turns up often in cultivars that win things, and it is usually the one growers comment on when a jar is opened for the first time after curing. Caryophyllene anchors the aroma, limonene occupies the middle, and myrcene sits behind both — which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Who does well with NYC Diesel? 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

🤑Energetic
71% of people reported feeling Energetic
😊Happy
65% of people reported feeling Happy
😎Uplifted
58% of people reported feeling Uplifted
😌Relaxed
51% of people reported feeling Relaxed
🤩Creative
50% of people reported feeling Creative
🤗Euphoric
40% of people reported feeling Euphoric
🤤Hungry
34% of people reported feeling Hungry
😴Sleepy
31% of people reported feeling Sleepy
😆Giggly
24% of people reported feeling Giggly

Strain Type

Indica 40%Sativa 60%

Strain Data Sheet

🧬THC20% - 23% (High)
🌿LineageMexican × Afghani
🔬TypeAutoflower Hybrid
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height60-90 cm
⚖️YieldMedium
🏠Yield Indoor300-350 g/m2
🌳Yield Outdoor75-120 g/plant
⏱Flowering Time55-65 days seed to harvest

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.
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NYC Diesel Auto
royalkingseeds.co.uk
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💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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NYC Diesel 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
Royal King Genetics Auto Line — recessive trait stabilisation
Stabilisation Notes — What This Means for Your Grow

Autoflowering genetics need multi-generation fixing because the ruderalis-derived auto trait is recessive. NYC Diesel sits at F5 — every plant in the pack autoflowers reliably and finishes inside a tight window.

Breeding Goal

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

Selection Focus

Chosen for vigour, terpene saturation and a tight finish window that allows production planning.

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