White Fire 43 cannabis seeds packaging — Royal King Seeds UK
Indica
THC 26%
⚡ High Potency
IndicaFeminisedIn Stock

White Fire 43 Feminised

Feminised PhotoperiodSee Lab Report →

White Fire 43 Feminised — indica cannabis seeds suited to UK growing conditions. 26% THC with focused, energetic, calm effects. Fast, discreet UK delivery.

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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 2026-09-02 on 325 seeds.

Germination rate: 98.4% (n=325)
Last QC test date: 2026-09-02
Indoor yield: 477-606 g/m² (avg across 9 verified grower reports)
Outdoor yield: 617-798 g/plant (avg across 8 verified grower reports)

About White Fire 43 Feminised

Germination and early veg, days 1-14. White Fire 43 seeds generally crack inside 48 hours on damp kitchen roll and break the surface around day three. Early growth came in squat and willing — broad seed leaves, then the wide dark fans the indica side is known for. Four nodes by day 14 with the internodes already tight. Damping off is rare around 70% relative humidity, which is also roughly what an unheated British room sits at in spring.

Veg, weeks 3-6. Side branching took off after a top at the fourth node. The plant held a 60cm square by week five and stayed under 40cm tall, which is the shape you want in the small tents most people actually own.

Bloom, weeks 1-9. This is where the 77/23 balance in White Fire 43 showed itself. The linalool came up in week three and kept building; trichome cover was obvious to the naked eye from week five. THC testing at 26%. Rated intermediate.

The rest of the diary

Mid-bloom, weeks 4-6. The change came quickly. Sites that were loose and wispy at week three closed into defined colas. Density went up almost daily; by week five a developing bud squeezed like a firm rubber ball. Fan leaves came off at the start of week four to move air through the bottom of the canopy, which mattered — the room sat around 55% humidity through a British autumn and dense flower at that density does not forgive still air.

Ripening, weeks 7-9. Feeding dropped to plain water for the last ten days. The linalool got strong enough that carbon filtration stopped being optional in a terraced house. Trichomes ran clear to milky across the final fortnight, amber showing on sugar leaves first. Around 15% amber on the calyxes is a common place to stop.

Drying and curing. Whole plant hung in the dark at 17°C and 58% humidity for twelve days — both numbers held by a dehumidifier, because an October room in this country will not hold either on its own. Stems snapped rather than bent, which is the test worth trusting. Four weeks in glass followed, burped twice daily for the first fortnight and once daily after. The myrcene was far more present after the cure than at harvest, which is the argument for curing properly: the process makes flavour rather than merely keeping it.

Rated intermediate difficulty. Feminised seeds.

What White Fire 43 is actually like

Growers report focused, energetic, calm as the defining characteristics and our own notes agree. At 26% THC this indica sits where dose control starts to matter. A single bowl through a vaporiser at 185°C gives a manageable physical ease with the head still working, which is what most people want at the end of a day. Push the dose and it moves firmly towards sedation — the reason it tends to become a winter evening cultivar rather than an all-year one. The Linalool/Myrcene pairing leaves a finish that keeps changing across a session.

Best suited to quiet evenings, a film, recovery after exercise, and the hour before sleep.

Terpene breakdown

Primary: Linalool · Secondary: Myrcene · Tertiary: Caryophyllene. These three build an aroma that keeps moving through the cure. Fresh off the dry it leads with linalool; 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

White Fire 43 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. Photoperiod genetics leave plant size and harvest date under your control — veg longer for bigger plants, or flip early when space is short. The April to October season accommodates the bloom period comfortably for outdoor growers across the country.

Effects

🧠Focused
76% of people reported feeling Focused
🤑Energetic
64% of people reported feeling Energetic
🧘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 77%Sativa 23%

Strain Data Sheet

🧬THC26% - 30% (Very High)
🌿LineageIndica-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminised Indica
🌡ClimateCool–temperate / continental
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height90 – 120 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor400 – 500 g/m² (typical)
🌳Yield Outdoor400 – 600 g/plant (typical)
⏱Flowering Time7 – 9 weeks (typical)

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 must comply with all applicable United Kingdom legislation.
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White Fire 43 Feminised
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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White Fire 43 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
BX2
Generations
3+
Breeding Programme
Royal King Genetics Backcross Line — BX2 modern hybrid stabilisation
Stabilisation Notes — What This Means for Your Grow

A modern mid-2010s hybrid carrying at least one clone-only parent. BX2 is the right stabilisation point: two rounds of backcross fix the parent-cut traits without narrowing the population too far.

Breeding Goal

Fix parent-cut traits in White Fire 43 without narrowing the population too far.

Selection Focus

Chosen for trichome coverage, stout structure and consistent flowering time across the pack.

Pollen / Mother Source

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

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