RK
White Rhino cannabis seeds packaging β€” Royal King Seeds UK
Indica
THC 20%
πŸ“ˆ High Yield
IndicaFeminisedIn Stock

White Rhino Feminised

Feminised PhotoperiodSee Lab Report β†’

White Rhino Feminised seeds. A indica cultivar at 20% THC delivering euphoric, happy, relaxed. Grow figures from named sources.

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Β£11.35
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Royal King Genetics β€” 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 2026-09-18 on 475 seeds.

Germination rate: 97.8% (n=475)
Last QC test date: 2026-09-18
Indoor yield: 459-626 g/mΒ² (avg across 7 verified grower reports)
Outdoor yield: 623-914 g/plant (avg across 6 verified grower reports)

About White Rhino Feminised

Will White Rhino finish outdoors in Britain? Yes, within the April to October season. The habit is compact enough to stay below a fence line, and the dense flower structure puts real weight on a small frame β€” which is also the reason airflow matters more here than it would in a drier place. Flowering runs 9 weeks, which puts harvest in September or October for most of the country.

What yield is realistic? up to 900 g/m2 indoors is achievable with competent LED lighting and attention to feeding. Outdoors, up to 1200 g/plant is realistic in 50 litre pots or in prepared ground with full sun β€” 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 20% THC with a linalool-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 White Rhino

Which medium? For flavour, peat-free soil cut with about 30% perlite and amended slowly β€” 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 indica performs in both; the choice is about what you want out of it.

How does it handle a British summer? The dense foliage shades itself, which helps. Above 30Β°C growth stalls but the plant does not fold. Mulch the root zone and water before seven in the morning and heat stress stops being a factor in nearly every part of the country. 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 100/50 balance shifts its demand quickly at the transition β€” 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 1200 g/plant β€” at the price of accepting whatever the autumn does. Flowering: 9 weeks. Indoor yield: up to 900 g/m2. Outdoor yield: up to 1200 g/plant. Rated intermediate difficulty.

What White Rhino is actually like

Growers report euphoric, happy, relaxed as the defining characteristics and our own notes agree. At 20% THC this indica sits where dose control starts to matter. A single bowl through a vaporiser at 185Β°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 β€” 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 Β· Secondary: Myrcene Β· Tertiary: Caryophyllene. 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. Linalool anchors the aroma, myrcene occupies the middle, and caryophyllene sits behind both β€” which is the part that separates this strain from others sharing its primary terpene.

Who it suits

White Rhino 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 β€” veg longer for bigger plants, or flip early when space is short. The April to October season accommodates a bloom of 9 weeks comfortably for outdoor growers across the country.

Effects

πŸ€—Euphoric
74% of people reported feeling Euphoric
😊Happy
65% of people reported feeling Happy
😌Relaxed
58% of people reported feeling Relaxed
😴Sleepy
58% of people reported feeling Sleepy
🀀Hungry
48% of people reported feeling Hungry
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
πŸ’†Body High
24% of people reported feeling Body High
πŸ˜Άβ€πŸŒ«οΈSedated
21% of people reported feeling Sedated

Strain Type

Indica 100%Sativa 50%

Strain Data Sheet

🧬THC20% - 25% (High)
🌿LineageWhite Widow Γ— North American Indica
πŸ”¬TypeFeminised Indica
🌑ClimateCool–temperate / continental
πŸ“…HarvestLate Sept – Oct, UK outdoor (typical)
πŸ“Height90 – 120 cm (typical)
βš–οΈYieldHigh
🏠Yield Indoorup to 900 g/m2
🌳Yield Outdoorup to 1200 g/plant
⏱Flowering Time9 weeks

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 Rhino Feminised
royalkingseeds.co.uk
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πŸ”’Sealed for authenticity
πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
🏷️Protective sticker
πŸ“±QR code verification
πŸ”’Scratchable serial number

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White Rhino Feminised β€” Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics β€” 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 IBL
Generations
5+
Breeding Programme
Royal King Genetics IBL β€” heritage cultivar restabilisation
Stabilisation Notes β€” What This Means for Your Grow

Five generations of inbred selection on the original 1990s landrace-derived White Rhino cuts. We were not chasing a redesign β€” we locked the compact internode spacing that earned this cultivar its reputation. Whatever the next pack throws is what the last pack threw.

Breeding Goal

Strip out pheno drift while preserving the heritage compact internode spacing.

Selection Focus

Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.

Pollen / Mother Source

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

Last Batch QC Verified
13 September 2026Β· 99%+ germination