RK

Cannabis Seeds for South Africa, Chosen for a Summer-Rainfall Country

Ask when the rain arrives, not how warm it gets. Across roughly four-fifths of this country it arrives in summer, which puts the wettest weeks directly over a flowering plant. The Western Cape does the opposite β€” its rain comes in winter, so buds ripen through a dry Cape summer. Layer a Highveld frost date over the first and a humid KwaZulu-Natal coast over the second and you are looking at four separate problems, not one. The catalogue is sorted for that: feminised photoperiods when you want to pick the flip date yourself, autoflowering genetics when the frost date decides it for you, and CBD-forward cultivars for the low-THC end. Rand pricing, VAT already in it.

Strain Finder
Start from where you actually grow
A humid KZN coast, a dry Cape summer and a frost-bound Highveld need different seed. Six questions, then a shortlist.
1Β 677
Varieties in stock, filterable by type, effect, flavour and how hard they are to grow
ZAR
Rand pricing, VAT already in the figure, and nothing added at the card step
Southern
Hemisphere dates used throughout β€” out in spring, cut in autumn, never Northern months reused
Sourced
Flowering times and yields reproduced from breeder or reference data, never guessed at
Discreet
Unmarked parcels, tracked the whole way, to any of the nine provinces

When no breeder or reference figure exists for a flowering time or a yield, that field is left empty instead of being filled with something believable. It is why the amount of data varies from one strain page to the next.cultivation guides for region-specific germination techniques.

Why the Same Strain Behaves Differently Here

Potency decides very little outdoors here. Two other things decide nearly everything. One is that the calendar is inverted: plants go out in spring and come down in autumn, so a guide written in the Northern Hemisphere has every single month back to front. The other is rainfall timing β€” summer rain across most of the country, landing squarely on the flowering window, against winter rain in the Western Cape, where flowering stays dry. That inversion narrows which genetics are worth buying more sharply than anything else on this page.

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The Calendar Is Upside Down

December, not June, is when the light peaks. That puts planting between September and November, with the crop coming down as the days shorten through March, April and May. It also means the month named in almost any grow guide you find online is exactly half a year out.

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One Country, Two Rainy Seasons

More outdoor grows turn on this than on anything else. About four-fifths of the country takes its rain in summer, dropping the wettest weeks on top of flowering. The Western Cape inverts it β€” wet winters, dry summers β€” so buds there ripen in the dry. Guidance built for one region is not merely unhelpful in the other, it is wrong, and the Garden Route coast stays wet all year regardless.

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The Last Fortnight Belongs to Humidity

On the KZN coast and across the Lowveld, what threatens a late-flowering plant is not the temperature but botrytis. A tight, heavy cola traps water through a humid February, which is why an open structure and genuine mould resistance beat another fifty grams on a spec sheet. Durban Poison being airy and sativa-leaning is not a coincidence.

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On the Highveld, Frost Sets the Deadline

Altitude puts Gauteng, the Free State and the North West inside a frost bracket at both ends of the season β€” last one usually in September, first one from May, and sooner in a hard year. What is left in between is short. That points at fast photoperiods and early-started autoflowers, not at a long-season sativa.

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Altitude Sharpens the Light

Between 1 200 and 1 800 metres, which covers much of the interior, ultraviolet is intense and the gap between day and night temperature is wide. Both help: resin production climbs, and cold nights pull colour out of anything with purple in its genetics. The catch is at the start β€” harden seedlings off slowly or the light bleaches them.

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Load-Shedding Argues for Autoflowers

A photoperiod plant indoors needs its dark hours uninterrupted, and the usual way that fails is a timer losing its schedule mid-outage β€” which is how you end up with pollen sacs. Autoflowers count days instead of light hours, so an outage means nothing to them. For everything else, a timer with a battery covers it.

Where Most Growers Start

Long-established names that suit a range of South African conditions β€” a reasonable place to begin if the full catalogue is too much

Barbara Bud cannabis seeds packaging β€” Royal King Seeds South Africa
15% THC
Indica
πŸŒ™ Night-Time

Barbara Bud Feminised

RelaxedSleepyHappy
β–Ό
R211.57ZAR
Terminator OG cannabis seeds packaging β€” Royal King Seeds South Africa
23% THC
Indica
πŸŒ™ Night-Time

Terminator OG Feminised

RelaxedSleepyHappy
β–Ό
R262.39ZAR
Tutankhamon cannabis seeds packaging β€” Royal King Seeds South Africa
23% THC
Sativa
🎨 Heady

Tutankhamon Feminised

HappyEnergeticCreative
β–Ό
R220.04ZAR
Casey Jones cannabis seeds packaging β€” Royal King Seeds South Africa
20% THC
Sativa
🎨 Heady

Casey Jones Feminised

CreativeFocusedHappy
β–Ό
R228.51ZAR
Cheese cannabis seeds packaging β€” Royal King Seeds South Africa
18% THC
Hybrid
πŸ… Long Established

Cheese Feminised

HappyRelaxedUplifted
β–Ό
R203.10ZAR
WTF cannabis seeds packaging β€” Royal King Seeds South Africa
24% THC
HybridAuto
⏱ Quick Finish

WTF Auto

RelaxedHappyEuphoric
β–Ό
R194.63ZAR
CBD Cream & Cheese cannabis seeds packaging β€” Royal King Seeds South Africa
22% THC
CBD
🧘 Calm

CBD Cream & Cheese Feminised

FocusedCalm
β–Ό
R262.39ZAR
CBD OG Kush cannabis seeds packaging β€” Royal King Seeds South Africa
10% THC
CBD
🧘 Calm

CBD OG Kush Feminised

FocusedCalm
β–Ό
R245.45ZAR

Check each flowering time against the frost date where you actually grow before you choose β€” that single comparison rules out more of this list than anything else will.

Reading a Strain Page From Your Frost Date Backwards

THC is the number every seed listing leads with and close to the last one that should decide a purchase here. Whether you get a harvest at all comes down to timing, and what limits the timing is not the same problem in Polokwane as it is in Bloemfontein or Stellenbosch.

So start at the end of your season and count backwards, rather than starting at germination and hoping. A Highveld grower is counting against frost: there are only so many weeks between the last one in spring and the first one in autumn, and a twelve-week photoperiod flipped in January will not fit between them. On the KwaZulu-Natal coast frost never enters into it β€” the season is long and generous, and what takes the crop is humidity sitting in the flowers through February. Around Cape Town the picture inverts again: flowering lands in the dry months, mould stops being the question, and the south-easter becomes the thing you build around. Same catalogue, three unrelated problems.

Which is why flowering time, not yield and certainly not THC, is the first field worth your attention on any strain page here. Where a breeder or reference figure exists for it, you will find it printed. Where one does not, you will find an empty space instead of a comfortable-looking range.

Expand any topic below

Turning a Flowering Time Into a Date on Your Calendar

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Nobody harvests on a flowering time. For a photoperiod that number starts counting at the flip, or outdoors once daylength has fallen far enough, so what you actually need is the flip date you can realistically hit, plus the window, measured against the date frost normally shows up where you live. Do that sum on the frost-free coast and it comes out easily. Do it on the Highveld and it frequently decides the entire grow.

An autoflower sidesteps the sum entirely. It works to its own clock, ten to twelve weeks from germination whatever the daylength is doing, which makes it something you can put in a diary. That is the reason it fits a frost-bracketed Highveld season, and the reason it is the safer bet indoors when the power is not dependable β€” not any advantage in yield.

What Feminised, Regular and Autoflowering Actually Buy You

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Feminised cannabis seeds come from breeding that makes almost every seed grow female β€” the sex that carries the flower worth having. Skip feminisation and about half of what you plant turns out male, and each one has to be spotted and pulled before it seeds everything around it. There are more than a thousand feminised varieties here, running from squat indica cultivars that suit a small tent up to lanky sativa-dominant hybrids better off outside. The trade-off is that a feminised photoperiod still needs you to change the lighting yourself, dropping from eighteen hours in veg to twelve to start it flowering.

Why an Autoflower Is Usually the Right First Grow

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Autoflowering seeds carry ruderalis in them, which is what makes them flower on age instead of on light. Bloom generally starts three or four weeks after germination and the whole thing is over in eight to twelve. They stay small, usually somewhere between 60 and 120 centimetres, and they forgive the errors that ruin a photoperiod run β€” a feed you forgot, pH you never measured, a dark period broken by an outage. It is that forgiveness, not the yield, that makes them the sensible first thing to grow.

Which Province You Are In Changes the Answer

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What moves the goalposts here is rainfall timing and height above sea level, not how far south you are. The Western Cape is the odd one out and the easiest place in the country to grow outdoors β€” its rain falls in winter, so flowering runs through a dry summer, mould barely features and almost anything will finish. Your planning problem there is the south-easter. KwaZulu-Natal and the Lowveld hand you the longest frost-free season going, and charge for it with humidity that peaks precisely as flowers fill, so open structure and real mould resistance stop being optional. The Highveld is where the season fights back: altitude, hard light, frost closing both ends, and a strong argument for autoflowers or something fast. The Northern Cape and Karoo have all the light anyone could want and not enough water. Sort by finishing time before you sort by anything else.

Why the Data Runs Out on Some Strain Pages

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There are no in-house yield numbers on this site and no averages gathered from customers, for the straightforward reason that neither exists yet. A strain page shows what the breeder or a reference source put in print, attributed to it, and shows nothing at all where that was never published. Read any per-plant figure, on this site or any other, as the best that grower managed in their conditions rather than a prediction about yours β€” pot size, lighting, feeding and training shift the outcome much further than the genetics do.

What the Parcel Looks Like

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Everything goes out in plain, unmarked outer packaging: no logo, nothing naming the company, and a label that describes the contents in no useful way. It is tracked to any address across the nine provinces. Farm addresses and the smaller towns simply sit further down the courier's route than the metros do.

Choosing by Effect Rather Than by THC Number

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If raw strength is the goal, the high-THC end is where growers with some runs behind them tend to end up β€” anything testing past 25%, which is the tier Gorilla Glue, Bruce Banner and Girl Scout Cookies occupy. At the other end, CBD-dominant seeds give plants running 10 to 20% cannabidiol against very little THC. Balanced 1:1 lines sit in between if neither extreme appeals. The quieter-effect grouping is assembled from what breeders and growers report experiencing β€” reports of experience, nothing more. Nothing here is offered as a treatment for anything.

Keeping Seed Alive Until Next Spring

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Cool, dark, dry and shut is the whole of it. A sealed tub with a desiccant sachet in the fridge does the job comfortably. What kills viability is not cold but the cycle of warming and cooling and the condensation that follows, so a jar opened every day in a warm kitchen does more damage than one left alone in the fridge. Skip the freezer altogether. Write the strain and the date it arrived on the lid β€” twelve months later that is precisely the thing nobody can recall.

Where to Start, Depending on How Long You Have Grown

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On a first attempt, sort by how much the plant forgives rather than by how hard it hits. An autoflower takes the light-cycle decision off the table completely, and something short is simply easier to live with in a tent or on a balcony. Open the autoflowering range, order it by finishing time, and if you are growing on the Highveld, read anything past twelve weeks from germination as wishful thinking outdoors.

What Grows Where You Are

Between a subtropical coastline, a high interior plateau, a Mediterranean corner and a stretch of semi-desert, this is several countries as far as a plant is concerned. What sails through a humid Durban February will not survive a Free State frost. Sort by your own conditions first; potency is a question for afterwards.

Western Cape

The one winter-rainfall corner, and the easiest place in the country to grow outside. Bloom happens through a dry, bright summer, so the mould that constrains everywhere else hardly features and a slow cultivar can be given the time it wants. Build around the summer south-easter instead of the rain.

KwaZulu-Natal

Subtropical, frost-free along the coast, the longest season anywhere here and by some way the wettest air. Warm nights through February and March lean hard on a tight flower, which is why an open frame and an early finish are worth more locally than another fifty grams. Durban Poison came from here for a reason.

Gauteng & the Highveld

Thin air, hard light, and frost closing the season at both ends. Anything still going into late May is out of the question. Start autoflowers early or pick a photoperiod that finishes fast β€” and put something physical over open-air plants before the summer hail arrives.

Limpopo & Mpumalanga

The warmest inland ground in the country, effectively frost-free down in the Lowveld, with enough season to carry a big late plant. Heat and humidity are what limit you here, never cold β€” and the escarpment above runs noticeably cooler and wetter than the plains beneath it.

Eastern Cape & Garden Route

Where the winter-rainfall west hands over to the summer-rainfall east, with the Garden Route coast wet the whole year round. Mild and even, but with no dependable dry spell to aim at, which makes cover or a greenhouse the sensible answer for late bloom.

Northern Cape & the Karoo

Semi-arid to arid, with extreme summer heat, very low humidity and light to spare. Mould pressure is close to nil and water is the limiting factor β€” nothing finishes outdoors without irrigation, and midday shade matters more than feeding.

The Strong End: Above 25% THC

The high-THC varieties here carry the largest published cannabinoid figures anywhere in the catalogue. Bear in mind that genetics sets the ceiling and conditions decide how close you get to it, so a mid-range strain grown attentively will beat a headline number grown carelessly more often than nne.

Terminator OG cannabis seeds packaging β€” Royal King Seeds South Africa
23% THC
Indica
πŸŒ™ Night-Time

Terminator OG Feminised

RelaxedSleepyHappy
β–Ό
R262.39ZAR
WTF cannabis seeds packaging β€” Royal King Seeds South Africa
24% THC
HybridAuto
⏱ Quick Finish

WTF Auto

RelaxedHappyEuphoric
β–Ό
R194.63ZAR
CBD Cream & Cheese cannabis seeds packaging β€” Royal King Seeds South Africa
22% THC
CBD
🧘 Calm

CBD Cream & Cheese Feminised

FocusedCalm
β–Ό
R262.39ZAR
Gold Leaf cannabis seeds packaging β€” Royal King Seeds South Africa
21% THC
Indica
🎨 Heady

Gold Leaf Feminised

EuphoricCreativeCalm
β–Ό
R228.51ZAR
Chemdawg Sour Diesel cannabis seeds packaging β€” Royal King Seeds South Africa
22% THC
Hybrid
🎨 Heady

Chemdawg Sour Diesel Feminised

EuphoricRelaxedUplifted
β–Ό
R186.16ZAR
Badazz Rolex cannabis seeds packaging β€” Royal King Seeds South Africa
21% THC
Indica
🎨 Heady

Badazz Rolex Feminised

EuphoricCreativeCalm
β–Ό
R236.98ZAR
X-Wing cannabis seeds packaging β€” Royal King Seeds South Africa
26% THC
Indica
⚑ Strong

X-Wing Feminised

RelaxedSleepyHappy
β–Ό
R236.98ZAR
Grape Gelato cannabis seeds packaging β€” Royal King Seeds South Africa
26% THC
Hybrid
⚑ Strong

Grape Gelato Feminised

RelaxedSleepyCalm
β–Ό
R203.10ZAR

Never Grown Before? Begin Here

Every beginner overwaters, feeds unevenly and lets the temperature wander. These autoflowering genetics absorb all three. They stay small, start flowering without being told to, and give you something worth cutting inside ten weeks. Our step-by-step germination guide covers everything from paper towel method through to harvest timing.

WTF cannabis seeds packaging β€” Royal King Seeds South Africa
24% THC
HybridAuto
⏱ Quick Finish

WTF Auto

RelaxedHappyEuphoric
β–Ό
R194.63ZAR
Shoreline cannabis seeds packaging β€” Royal King Seeds South Africa
17% THC
IndicaAuto
⏱ Quick Finish

Shoreline Auto

RelaxedSleepyHappy
β–Ό
R228.51ZAR
Charlie Sheen cannabis seeds packaging β€” Royal King Seeds South Africa
19% THC
HybridAuto
⏱ Quick Finish

Charlie Sheen Auto

EuphoricHappyRelaxed
β–Ό
R211.57ZAR
Reclining Buddha cannabis seeds packaging β€” Royal King Seeds South Africa
20% THC
IndicaAuto
⏱ Quick Finish

Reclining Buddha Auto

RelaxedEuphoricFocused
β–Ό
R169.22ZAR
Strawberry Cheesecake cannabis seeds packaging β€” Royal King Seeds South Africa
22% THC
IndicaAuto
⏱ Quick Finish

Strawberry Cheesecake Auto

HappyRelaxedUplifted
β–Ό
R245.45ZAR
Burkle cannabis seeds packaging β€” Royal King Seeds South Africa
18% THC
IndicaAuto
⏱ Quick Finish

Burkle Auto

RelaxedSleepyHappy
β–Ό
R245.45ZAR
Blackberry Kush cannabis seeds packaging β€” Royal King Seeds South Africa
18% THC
IndicaAuto
⏱ Quick Finish

Blackberry Kush Auto

HappyRelaxedSleepy
β–Ό
R186.16ZAR
Industrial Plant cannabis seeds packaging β€” Royal King Seeds South Africa
18% THC
SativaAuto
⏱ Quick Finish

Industrial Plant Auto

CreativeCalm
β–Ό
R220.04ZAR

Free Planning Tools for South African Growers

Dial in your strain selection, forecast your harvest, optimise your feeding schedule, and compare genetics side by side β€” all at no cost.

Quick-Finish Genetics for Short-Season Provinces

The things worth knowing before any seed goes in the post.

Common Questions From South African Growers

When should I start seeds for an outdoor grow in South Africa?
Work back from your local conditions rather than to a fixed calendar. Most growers germinate under cover from August or September and move plants out once frost risk has passed β€” often September on the frost-free coast, October on the Highveld. The grow then runs through summer and finishes as daylength drops through March, April and into May. Northern Hemisphere guides describe the opposite months and should be read with that shift in mind.
Why does bud rot come up so often in South African growing advice?
Because most of the country is summer-rainfall, so the wettest, most humid months land on the flowering window β€” worst along the KwaZulu-Natal coast and through the Lowveld. Botrytis takes hold in dense, tightly packed flowers that hold moisture, so open bud structure, good airflow and a faster finish are worth more outdoors than a larger yield figure on paper. The Western Cape is the exception: its rain falls in winter, so flowering happens dry.
Are autoflowers a better choice on the Highveld?
Often, yes. An autoflower runs on its own clock, generally ten to twelve weeks from germination regardless of daylength, which makes it far easier to fit inside a season bracketed by frost at both ends. A short-flowering photoperiod started early is the other workable route. Autoflowers are also the safer indoor choice where mains power is interrupted, because they do not depend on an unbroken dark period the way a photoperiod does.
What is the difference between feminised, regular and autoflowering seeds?
Feminised seeds are bred to produce female plants, which are the ones that flower usefully β€” so you are not removing males partway through. Regular seeds produce both and are mainly of interest if you intend to breed. Autoflowering refers to timing rather than sex: those plants flower on age instead of on a change in daylength, so you do not control when they start.
How are your prices shown, and is there a card fee?
Every price is in South African rand with VAT already included, so the shelf price is what you pay. There is no card surcharge added at checkout β€” the total in your cart is the amount charged. Card payments are processed by our payment provider in US dollars behind the scenes, at a rate we set from published spot rates and record in the codebase. Your bank may apply its own international transaction fee, which is outside our control.
How is the order packaged and delivered?
Orders go out in plain, unbranded outer packaging with no logos or product description on the outside, and ship with tracking to addresses in all nine provinces. Outlying towns and farm addresses take a little longer than the metros.
How should I store seeds if I am not planting straight away?
Cool, dark and dry, in an airtight container, ideally with a desiccant sachet. A fridge is suitable provided the container is genuinely airtight, because repeated condensation is more damaging than the cold. Avoid a freezer and avoid anywhere that swings between warm and cold.
Why do some strain pages show fewer grow figures than others?
Because we only publish flowering time, yield and height where we could source them from published breeder or reference data, and we keep a record of where each one came from. Where no published figure exists, the field is left empty. Roughly one strain in six has no flowering time we could verify anywhere, so those pages genuinely have less on them.
What is the practical difference between indica and sativa in a South African grow?
Indica-leaning plants tend to stay shorter and bushier and finish sooner, which suits a frost-bracketed Highveld season, a windy Cape site or limited headroom in a tent. Sativa-leaning plants stretch more and take longer, which is manageable on the frost-free subtropical coast but risky inland β€” though their airier structure handles coastal humidity better. Most of the catalogue is hybrid, so read the flowering time and height rather than the label.
Which payment methods do you accept?
Visa and Mastercard through our payment provider, and a range of cryptocurrencies as an alternative. Full card numbers are never stored on this site.

Royal King Seeds in South Africa

Royal King Seeds is a cannabis seed catalogue put together for South African conditions. This is a new store, so rather than tell you how long we have been here, it is more useful to say what the site actually does.

Every strain page carries the grow figures we could source β€” flowering time, indoor and outdoor yield, indoor height β€” and each one is taken from published breeder or reference data. Where a figure does not exist, the page shows nothing in its place. Roughly one strain in six has no published flowering time anywhere we could check, and those pages look emptier as a result. That is deliberate.

The catalogue is filterable the way growers actually choose: by whether you want to control the flip or let the plant run on its own clock, by finishing speed, by how much height you can give it, and by flavour and effect. If you would rather answer questions than browse, the strain finder narrows 1677 varieties down to a short list.

Prices are in South African rand with VAT included, and there is no card surcharge at checkout. Orders ship in plain, unbranded packaging with tracking to addresses in all nine provinces.

What Sets Royal King Seeds Apart

Concrete commitments backed by operational data β€” not marketing slogans. Here is precisely what you receive when you order from us.

Ready to Grow? Your Genetics Are Waiting.

Explore 1677 strains, filterable by finishing time, height, effect and flavour. Feminised, autoflower, and high-potency varieties β€” all shipped discreetly to addresses in all nine provinces, with tracked delivery and sourced grow figures on every strain page.

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