NYC Sour Diesel cannabis seeds packaging — Royal King Seeds UK
SativaAuto
THC 15%
😊 Beginner Pick
SativaAutoflowerIn Stock

NYC Sour Diesel Auto

AutoflowerSee Lab Report →

Grow NYC Sour Diesel Auto in the UK. Sativa genetics at 15% THC, known for euphoric, creative, energetic effects.

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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 2026-09-19 on 400 seeds.

Germination rate: 98.5% (n=400)
Last QC test date: 2026-09-19
Indoor yield: 426-560 g/m² (avg across 10 verified grower reports)
Outdoor yield: 600-846 g/plant (avg across 9 verified grower reports)

About NYC Sour Diesel Auto

Will NYC Sour Diesel finish outdoors in Britain? Yes, within the April to October season. Expect height and expect it early; the long midsummer days at these latitudes suit the plant. Give it room to stretch and tie it down rather than fighting it. Flowering runs 55-65 days flowering (75-90 days seed to harvest), which puts harvest in September or October for most of the country.

What yield is realistic? up to 500 g/m2 indoors is achievable with competent LED lighting and attention to feeding. Outdoors, up to 180 g/plant is realistic in 50 litre pots or in prepared ground with full sun — and "full sun" is doing a lot of work in that sentence at these latitudes, so the position you pick in the garden matters more than the pot you buy. At 15% THC with a pinene-forward profile, the return on the effort is sound.

Is it forgiving? Reasonably. Anyone comfortable with pH, a feed schedule and a light timer will get a good result. It will not hold your hand, but it will not punish one missed watering either.

Further questions we get asked about NYC Sour Diesel

Which medium? For flavour, peat-free soil cut with about 30% perlite and amended slowly — fish, blood and bone, rock phosphate, seaweed meal, all of it available at any British garden centre. For weight, coco with fertigation at EC 1.4-1.8 through bloom. This sativa performs in both; the choice is about what you want out of it.

How does it handle a British summer? Better than most, because the open structure lets heat out. In a genuine heatwave you may see midday droop, with recovery by evening. Thirty per cent shade netting takes the edge off without costing you much growth. The more common British problem is the opposite one: a cold, wet July that never lets the plant dry out between waterings.

When do I switch to bloom feed? Inside the first week of visible pistils. The 11/89 balance shifts its demand quickly at the transition — phosphorus and potassium up, nitrogen down. Soil growers can top-dress with guano and sulphate of potash; coco and hydro should move to a low-nitrogen bloom formula straight away.

Indoors or outdoors? Both work, for different reasons. Indoors you own the flowering environment completely. Outdoors, across the April to October season, the plant gets a light intensity no domestic LED matches and can reach up to 180 g/plant — at the price of accepting whatever the autumn does. Flowering: 55-65 days flowering (75-90 days seed to harvest). Indoor yield: up to 500 g/m2. Outdoor yield: up to 180 g/plant. Plant height: 80 cm. Rated intermediate difficulty.

Flavour, aroma and effect

NYC Sour Diesel arrives in stages. The first draw at 15% THC brings clean resin, like woodland after rain. The euphoric, creative, energetic, calm character follows within minutes, arriving as sharpened attention. Colour reads brighter, music reads busier, and conversation wanders further than it would otherwise. It holds for two to three hours on a plateau rather than a spike. The limonene underneath adds a lift that stops it turning heavy.

Terpene breakdown

Primary: Pinene · Secondary: Limonene · Tertiary: Caryophyllene. These three build an aroma that keeps moving through the cure. Fresh off the dry it leads with pinene; after three or four weeks sealed in glass at 16-18°C the caryophyllene 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 caryophyllene molecules are the first thing heat destroys.

Who it suits

Who does well with NYC Sour 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

🤗Euphoric
74% of people reported feeling Euphoric
🤩Creative
70% of people reported feeling Creative
🤑Energetic
57% of people reported feeling Energetic
🧘Calm
53% of people reported feeling Calm
😊Happy
45% of people reported feeling Happy
😎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 11%Sativa 89%

Strain Data Sheet

🧬THC15% - 19% (Medium-High)
🌿LineageAutoflowering Sativa-Dominant Hybrid (Undisclosed Lineage)
🔬TypeAutoflower Sativa
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height80 cm
⚖️YieldMedium – High
🏠Yield Indoorup to 500 g/m2
🌳Yield Outdoorup to 180 g/plant
⏱Flowering Time55-65 days flowering (75-90 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 Sour Diesel Auto
royalkingseeds.co.uk
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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NYC Sour 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

Five generations of selection on NYC Sour Diesel to lock the autoflower trait. Auto trigger reliability and controlled stretch expression both run uniform across the population — no rogue photoperiod plants in the pack.

Breeding Goal

Reach auto trigger and finish-window uniformity for the NYC Sour Diesel pack.

Selection Focus

Chosen for sativa vigour, bud-to-leaf ratio and the distinctive terpene character of the original cut.

Pollen / Mother Source

Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.

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