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Erdbeer X Dutch Treat

  • Resistent gegen Schädlinge
  • Gewinner vieler Cups!
  • Ideal für den Outdoor-Anbau
Outdoor Hybrid Fruchtig Entspannend
In stock

(Tropicana Shoes X Zmoothiez Zignature) X Mandarin Panties Auto

  • Preisträger-Sorte
  • Geeignet für Indoor/Outdoor
  • Kräftig fruchtiger Geschmack
Indoor/Outdoor Indica Fruchtig Entspannend
In stock

Freakum Zkittlez X Ghost Tonic

  • Gewinner vieler Preise
  • Kompakte, harzige Blüten
  • Energiegeladene, kreative Sativa
Indoor/Outdoor Sativa Citrus Aktiv
In stock

Tropicana Shoes X Zmoothiez Zignature

  • Gewinner vieler Preise
  • Angenehm glückliches High
  • Einfach zu kultivierende Genetik
Indoor/Outdoor Indica Fruchtig Happy Chill
In stock

Pink Panties (Burmese Kush x Florida Kush) x Purple Punch (Larry OG x Grandaddy Purple)

  • Sehr hoher THC-Gehalt
  • Gewinner vieler Cups!
  • Kompakte, harzige Blüten
Indoor/Outdoor Indica THC Rich Fruchtig Kräuter Entspannend
In stock
  • Gewinner vieler Preise
  • Kreative, energievolle Sativa
  • Erfrischend saure Zitronentöne
Indoor/Outdoor Sativa THC Rich Süß Cremig Aktiv
In stock

Apollo Black Cherry X Black Domina Auto

  • Preisträger-Sorte
  • Einfach zu kultivieren
  • Ausgleich von Energie & Ruhe
Indoor/Outdoor Hybrid THC Rich Erdig Würzig Entspannend
In stock

Santa Marta Haze X Amnesia Auto

  • Gewinner vieler Preise
  • Geeignet für Indoor/Outdoor
  • Frischer, fruchtiger Pinienduft
Indoor/Outdoor Sativa THC Rich Fruchtig Würzig Aktiv
In stock

Tangie x OG Kush Auto

  • Preisträger-Sorte
  • Sativa mit Energieschub
  • Leicht zu kultivieren
Indoor/Outdoor Sativa THC Rich Süß Cremig Happy Chill
In stock

(Candy Kush X Chem Dawg) X OG Kush Auto

  • Preisträger-Sorte
  • Erdiger, würziger Duft
  • Geeignet für Indoor/Outdoor
Indoor/Outdoor Indica THC Rich Süß Erdig Entspannend
In stock

Alaskan Thunder Fuck (aka Matanuska) x Amherst Banana (Amherst Sour Diesel x Banana OG)

  • Gewinner vieler Preise
  • Süße Bananennoten
  • Geeignet für Indoor/Outdoor
Indoor/Outdoor THC Rich Süß Kräuter Happy Chill
In stock
  • Fruchtiges Bonbon-Aroma
  • Gewinner von Cannabis Cups!
  • Kompakte, harzige Blüten
Indoor/Outdoor Indica THC Rich Süß Fruchtig Entspannend
In stock

(Animal Cookies X Fruity Pebbles OG) 

  • Gewinner vieler Preise
  • Geeignet für Indoor/Outdoor
  • Süß wie ein Dessert
Indoor/Outdoor Hybrid THC Rich Süß Cremig Happy Chill
In stock

Early Durban X Sour Diesel

  • Preisträger-Sorte
  • Ideale Outdoor-Genetik
  • Süß-saurer Sativa-Geschmack
Outdoor Sativa Citrus Aktiv
In stock

Original Amnesia x Panty Punch

  • Preisträger-Sorte
  • Perfekt für Extraktionen
  • Sativa für Kreativität & Fokus
Indoor/Outdoor Sativa Citrus Würzig Happy Chill
In stock
  • Preisträger-Sorte
  • "Wie bei Oma zu Hause!"
  • Knoblauch- und Gewürzaroma
Indoor/Outdoor Indica Würzig Happy Chill
In stock

CBD Critical XXL fem x BCN Critical XXL Auto

  • Gewinner vieler Preise
  • Geeignet für Indoor/Outdoor
  • Sanfte Karamellaromen
Indoor/Outdoor Indica CBD Rich Kiefer Entspannend
In stock

Sunset Sherbet X Thin Mint GSC

  • Die Königin der USA-Sorten
  • Geeignet für Indoor/Outdoor
  • Indica mit sedativer Wirkung
Indoor/Outdoor Indica THC Rich Süß Entspannend
In stock

Chem’s Sister x Sour Dubb x Chocolate Diesel

  • Preisträger-Sorte
  • Geeignet für Indoor/Outdoor
  • Kompakte, harzige Blüten
Indoor/Outdoor Indica THC Rich Erdig Sauer Happy Chill
In stock

CBD Skunk Haze X Auto Amnesia

  • THC-CBD-Verhältnis 1:1
  • Gewinner von Cannabis Cups
  • Geeignet für Indoor/Outdoor
Indoor/Outdoor Sativa CBD Rich Citrus Entspannend
In stock

European Certified Hemp x BCN Critical XXL F12 selection.

  • Für Indoor & Outdoor geeignet
  • Klarer Kopf, entspannter Geist
  • Leuchtend orangefarbene Haare
Indoor/Outdoor Indica CBD Rich Kiefer Entspannend
In stock

CBD Critical XXL x Northern Light (IBL)

  • Preisträger-Sorte
  • Erdig-herber Kiefernduft
  • CBD:THC-Verhältnis 1:0
Indoor/Outdoor Indica CBD Rich Süß Entspannend
In stock

Kritikal Bilbo X Critical Mas

  • Ein Seedstockers-Klassiker
  • Gewinner von Cannabis Cups!
  • Kräftige, robuste Genetik
Indoor/Outdoor Hybrid THC Rich Citrus Würzig Happy Chill
In stock

Lemon Tree X Mandarin Panties

Indoor Süß
Out of stock
29,95 €
  • Out-of-Stock

We present our catalogue of autoflower cannabis seeds: the best selection of automatic strains for those growers looking for simplicity and speed who aren’t willing to sacrifice on quality. Our team of breeders has placed a special emphasis on creating high-quality autoflowering genetics that showcase truly unique traits, resulting in real cannabis jewels that definitely deserve a place in your grow.
Discover below all the features of our autoflowering varieties and buy now your Seedstockers’ seeds on our website at the best price.

Cannabis Cup prämierte Sorten

Although autoflower cannabis seeds have received much attention and better reviews in recent years, some growers still refrain from using this type of seed as they have in mind the mediocre yielding capacity of the first generation that went on the market at the beginning of the 21st century. In reality, though, these genetics have come a long way since then, and now offer a real choice to consider when planning your grow.

What are autoflower cannabis seeds?

Autoflowering, autoflower, automatic, or auto cannabis plants are those whose flowering starts automatically and doesn’t depend on a change in the photoperiod. This means that they bloom depending on their age and not on the hours of light and darkness that they’re exposed to. This sets them apart from the photoperiod cannabis varieties, which require a change in the photoperiod, i.e. being moved to a 12/12 cycle (12 hrs of light and 12 hrs of darkness) so that they start producing flowers.

It is the opposite of photoperiodic flowering, which is when the plant, in its natural setting, starts producing flowers after the summer solstice, when the days become shorter. This autoflowering feature is incredibly useful for indoor growers, as they can keep their autos in a constant light cycle until harvest day. Moreover, this is also especially helpful in outdoor crops, since you can harvest much earlier than with photoperiod plants, thereby avoiding any mould problems which may arise with the first autumn rains.

Suchst du die besten der besten Cannabissorten? Du hast sie gefunden. 🌱 Seit 2017 sammelt Seedstockers Cannabis Cups auf der ganzen Welt – und hat dabei sogar Saatgutbanken übertroffen, die schon seit den 80ern dabei sind. Von starken feminisierten Samen über Fast-Flowering bis hin zu Autoflower-Sorten – unsere Gewinner-Genetiken haben Trophäen in den Kategorien Indica und Sativa abgeräumt.
Und ja, den Titel „Beste Samenbank“ haben wir uns auch schon mehrmals geschnappt.
Bereit, unsere Champions kennenzulernen?

🏆 Warum Cannabis Cups immer noch wichtig sind

In einer Branche voller Hype und großer Sprüche bleiben Cannabis Cups eine der wenigen Möglichkeiten, um die Spreu vom Weizen zu trennen. Diese jährlichen Events – vom Autoflower World Cup über die Amsterdam Coffeeshop Awards bis hin zu lokalen Growers Cups – bringen echte Grower, Züchter und Cannabisliebhaber zusammen, um die besten Genetiken zu feiern.

Was macht diese Events so besonders? Es gibt kein festes Rezept. Manche Cups konzentrieren sich auf Blüten, andere auf Extrakte, Hasch oder Rosin. Die Jury bewertet alles – vom Aroma und Geschmack bis hin zu Struktur, Potenz und natürlich dem Effekt. Und jeder Juror bringt seine eigene Sichtweise ein: Einer achtet vielleicht besonders auf den Abbrand, ein anderer sucht nach dem lautesten Terpenprofil. Das macht jedes Ergebnis persönlich. Ehrlich. Und real.

Gerade deshalb bedeuten uns die Siege bei Seedstockers so viel. Viele unserer Auszeichnungen stammen von Growern, von denen wir nicht mal wussten, dass sie teilnehmen. Menschen, die sich ein Päckchen unserer Seeds geholt haben, es auf ihre eigene Art angebaut haben – und damit einen Pokal mit nach Hause genommen haben. Dann weißt du, dass eine Sorte wirklich abliefert. Ganz ohne Hype, ohne Sponsoring, einfach aus eigener Kraft.

Klar sind wir stolz auf unsere Trophäen. Aber noch stolzer sind wir darauf, dass unsere Genetiken echten Growern helfen, preisgekräutes Weed zu züchten. Darum geht’s doch, oder? Starke Genetik, in guten Händen, mit dem Ergebnis, für das sie gezüchtet wurde.

Und wenn du auf der Suche nach echten Gewinnern bist – dann bist du hier genau richtig. Keine Labormärchen, keine Showroom-Buds. Sondern Sorten, die unter realen Bedingungen überzeugt haben. Die Respekt verdient haben. Und die international ausgezeichnet wurden.

Cannabis-Cup-Übersicht

🌱 Warum Seedstockers gewinnt

Cannabis Cups gewinnt man nicht durch Zufall. Dahinter steckt starke Genetik – und verdammt viel Liebe von den Growern, die sie zum Leben erwecken. Bei Seedstockers haben wir uns unseren Ruf durch drei Dinge aufgebaut: Geschmack, Aroma und Wirkung – die Faktoren, die am Ende wirklich zählen.

Klar, Ertrag und Struktur sind wichtig. Aber wenn die Jury zum ersten Mal riecht, zum ersten Mal zieht – dann sind es die Terpene und der Effekt, die entscheiden. Genau deshalb bringt jede Sorte aus unserer Superior-Linie etwas Einzigartiges mit. Keine Kopien. Keine Kreuzungen von Kreuzungen. Sondern echtes Züchterhandwerk, getestet im Labor und unter realen Bedingungen – bevor du überhaupt den ersten Samen in die Hand bekommst.

Unsere Breeder arbeiten mit bewährten Elternlinien, über Generationen stabilisiert und ausgesucht dafür, im echten Anbau zu glänzen – nicht nur auf dem Papier. Und wenn diese Genetik dann in die Hände leidenschaftlicher Grower gelangt, spricht das Ergebnis für sich.

Die meisten Wettbewerbe, die wir gewonnen haben? Waren nie geplant. Ein Grower kauft ein Pack, zieht’s durch, meldet’s an – und räumt ab. Ohne Promo. Ohne Druck. Nur dank Qualität. Genau darauf sind wir stolz.

Und egal ob du einen ganzen Raum fährst oder ein stilles Zelt unterm Dach – du hast Zugriff auf dieselben preisgekrönten Samen. Mit ein bisschen Erfahrung und einem guten Setup steht zwischen dir und top-shelf Buds, die aussehen, riechen und ballern wie die Pokalsieger, nur noch eins: anfangen.

Ob Hobbygärtner oder Hardcore-Cultivator – diese Genetik ist für dich.

🌍 Wo Grower growen, gewinnen wir

Seedstockers hatte nie den Plan, die Welt zu erobern – wir wollten einfach nur richtig gute Seeds machen. Aber wenn man sich auf Geschmack, Wirkung und stabile Genetik konzentriert, spricht sich das eben schnell herum.

Unsere Trophäen stammen aus Städten, die Cannabis leben und atmen. Orte, an denen Grower Weed nicht nur mögen – sondern es wirklich verstehen, testen, verbessern und perfektionieren.

Nimm zum Beispiel Amsterdam und Holland. Lange bevor Legalisierung ein Trend wurde, war das hier das Herz der europäischen Cannabiskultur. Bei Wettbewerben wie der Highlife Cup, den Amsterdam Coffeeshop Awards oder der Home Grown Cup abzuräumen, bedeutet uns alles – denn dort sitzen Jurys, die Ahnung haben.

Dann Barcelona – unser Zuhause und aufstrebender Stern der weltweiten Szene. Hier standen wir mehrfach auf dem Podium beim Autoflower World Cup, einem der härtesten Wettbewerbe Europas. Kein Show-Off, sondern echte Autos, von echten Growern angebaut und streng bewertet. Genau unser Ding.

Und wir dürfen Medellín in Kolumbien nicht vergessen. Eine Community voller Leidenschaft, tief verwurzelt und enorm kraftvoll. Bei Cups wie Copa del Sol oder Copa de las Flores stehen die Grower im Mittelpunkt – und wenn sie unsere Genetik wählen und damit gewinnen, ist das die schönste Auszeichnung, die wir uns vorstellen können.

Ob Rom, Prag, Düsseldorf, Santiago oder ein Ort, den wir selbst noch nie besucht haben – wo echte Grower sind, sind oft auch unsere Seeds. Nicht auf Riesenbannern. Meist einfach im Glas des Gewinners.

Denn gute Genetik findet ihren Weg zu guten Growern – und wenn das passiert, entstehen großartige Dinge.

Cannabis Cups 2024

🧬 Unsere Originals, unsere Siege

Bei Seedstockers ging es schon immer darum, starke Genetik anzubieten – egal ob bewährter Klassiker oder mutige Neuentwicklung. Aber in den letzten Jahren haben wir das Ganze auf ein neues Level gehoben. Unser Fokus liegt jetzt klar auf einzigartigen Sorten, die du nur bei uns findest – und genau das spiegelt sich in den Trophäen wider, die wir mit nach Hause bringen.

Die meisten unserer jüngsten Auszeichnungen haben wir nicht mit großen Namen gewonnen – sondern mit Seedstockers-Originalen. Sorten wie Tropical Zmoothie©, Panty Punch©, Zmäkdaun©, CBD Critical XXL© und Apollo Black Cherry© sind unsere eigenen Kreationen. Keine Kopien. Keine Masse. Sondern hausgemachte Genetik, die sich gegen die Besten behauptet – und gewinnt.

Einige dieser Sorten haben mehrere Cups gewonnen – in verschiedenen Kategorien, in verschiedenen Ländern. Von Barcelona bis Medellín, von Amsterdam bis Bangkok. Diese Konstanz kommt nicht von ungefähr. Sie ist das Ergebnis starker Zuchtarbeit, realer Tests – und Growern, die unseren Strains vertrauen.

Und wenn eine unserer Sorten gewinnt, haken wir nach. Wir sprechen mit dem Grower. Verfolgen, woher die Seeds kamen. Holen uns das volle Bild – nicht weil wir müssen, sondern weil es uns wirklich interessiert, was mit unserer Genetik passiert, wenn sie in fähige Hände kommt.

Also wenn du unsere Liste der Cup-Winner siehst, denk dran:
Das hier sind keine geliehenen Namen oder gehypter Mainstream – das ist unser eigenes Werk. Und der Erfolg der Grower, die es möglich gemacht haben.

🏅 Lerne die Champions kennen

Von fruchtigen Kraftpaketen bis hin zu THC-starken Legenden – jede dieser Sorten hat mehr als nur überzeugt: Sie hat einen oder gleich mehrere Cannabis Cups gewonnen. Diese Gewinner wurden von Growern auf der ganzen Welt gewählt, kultiviert – und an die Spitze gebracht.

Manche wuchsen in kleinen Zelten, andere in professionellen Setups. Doch sie alle teilen dasselbe genetische Fundament: Seedstockers-Qualität.

Scroll weiter runter, um die komplette Liste zu entdecken – und vielleicht findest du dabei deinen nächsten Champion.

JahrEreignisPreisGenetikLand
2025Highlife Cup1st PrizeRucucucu OG FeminisiertAmsterdam
2025Highlife Cup3rd PrizeGranny´s Home FeminisiertAmsterdam
2025Highlife Cup3rd PrizeTropical Zmoothie AutoflowerAmsterdam
2025Highlife Cup1st PrizeRucucucu OG FeminisiertAmsterdam
2025CFE Desuranorte1st PrizeApollo Black Cherry© FeminisiertChile
2025TerpTurbine Cup3rd PrizeApollo Black Cherry© FeminisiertGermany
2025CFE Desuranorte1st PrizeApollo Black Cherry© FeminisiertChile
2024Canna reunion Cup3rd PrizeSeedstockers (Best Seed Bank)spain
2024Autoflower World Cup3rd PrizeTropical Zmoothie Autoflowerspain
2024Hash Somelier test1st PrizeBCN Critical XXL FeminisiertThailand
2024Highlife Cup1st PrizeBig Yeti FeminisiertAmsterdam
2024Gas cup1st PrizeSagrada Amnesia FeminisiertGermany
2024Clouds in the City Cup1st PrizeTropical Zmoothie FeminisiertAmsterdam
2024Highlife Cup1st PrizeRucucucu OG FeminisiertAmsterdam
2024Clouds in the City Cup3rd PrizeGranny´s Home FeminisiertAmsterdam
2024Clouds in the City Cup1st PrizeCBD Northern Lights FeminisiertAmsterdam
2024Clouds in the City Cup1st PrizeTangie Tree FeminisiertChile
2024Copa de Los Andes1st PrizeTropical Zmoothie FeminisiertChile
2024Cannafest Prague1st PrizeSeedstockers Best Seeds bankCzech Republic
2024Best CBD Flower3rd PrizeCBD Critical XXL FeminisiertAmsterdam
2024Amsterdam coffee shop award1st PrizeCBD Critical XXL FeminisiertAmsterdam
2024Home Grown Winter Edition1st PrizeZmäkdaun FeminisiertAmsterdam
2024Mesoamericanna1st PrizeFruit Cake FeminisiertMexico
2023Dabadoo3rd PrizeApollo Black Cherry Feminisiertspain
2023Autoflower World Cup3rd PrizeMack and Crack Autoflowerspain
2023Autoflower World Cup1st PrizeTriton Biscotto Lime Autoflowerspain
2023Munch & Roll Cup2nd PrizeMack and Crack Feminisiertspain
2023Munch & Roll Cup2nd PrizePanty Punch Feminisiertspain
2023Munch & Roll Cup3rd PrizePanty Punch Feminisiertspain
2023Canapa Mundi Roma1st PrizeSeedstockers Best Seed BankItaly
2023Flores del sur1st PrizeGG#4 FeminisiertChile
2023The North Grow Cup2nd PrizeTerp & Tonic Feminisiert Denmark
2023The North Grow Cup2nd PrizeBlack Rainbow Autoflower Denmark
2023The North Grow Cup3rd PrizeTriton Biscotto Lime Feminisiert Denmark
2023Clouds in the City Cup1st PrizeCBD 1:1 Silver Lime Haze AutoflowerAmsterdam
2023Clouds in the City Cup2nd PrizeTropical Zmoothie FeminisiertAmsterdam
2023Cultiva Viena1st PrizeFastest JointAustria
2023Cannafest Prague1st PrizeBest Seed CompanyCzech Republic
2023Cannafrench Cup3rd PrizeBest Seed Companyspain
2023Amsterdam coffee shop award1st PrizeTerp & Tonic FeminisiertAmsterdam
2023Home Grown Cup2nd PrizeZmäkdaun FeminisiertAmsterdam
2022La copa de las Flores3rd PrizeTriton Biscotto Lime FeminisiertColombia
2022Autoflower World Cup1st PrizeCandy Dawg Autoflowerspain
2022Autoflower World Cup1st PrizeCBD Critical XXL Autoflowerspain
2022Autoflower World Cup2nd PrizeRucu Cucu OG Autoflowerspain
2022Autoflower World Cup2nd PrizeSanta Marta Haze Autoflowerspain
2022Canapa Mundi Roma1st PrizeBest Seed CompanyItaly
2022High THC Cup3rd PrizeBCN Critical XXL FeminisiertThailand
2022High Life Cup2nd PrizeCBD Critical XXL AutoflowerAmsterdam
2022High Life Cup3rd PrizeCBD Mack and Crack FeminisiertAmsterdam
2022Expogrow Irun1st PrizeApollo Black Cherry AutoflowerSpain
2022Clouds in the City2nd PrizeTriton Biscotto Lime FeminisiertAmsterdam
2022Clouds in the City1st PrizePanty Punch FeminisiertAmsterdam
2022Amsterdam Coffeeshop Awards1st PrizeMack and Crack FeminisiertAmsterdam
2022Amsterdam Coffeeshop Awards2nd PrizeFruit Cake FeminisiertAmsterdam
2021Highlife Cup3rd PrizeSanta Marta Haze AutoflowerAmsterdam
2021Highlife Cup1st PrizeCBD Critical XXL FeminisiertAmsterdam
2021Copa del Sol1st PrizeSanta Marta Haze AutoflowerColombia
2021Copa Del Sol1st PrizeThunder Banana FeminisiertColombia
2021Home Grown Cup1st PrizeThunder Banana FeminisiertAmsterdam
2021Copa Seshat Colombia2nd PrizePineapple FeminisiertColombia
2021Copa Seshat Colombia3rd PrizeWedding Cake FeminisiertColombia
2020Clouds in the city3rd PrizeGelato 41 FeminisiertAmsterdam
2020Home Grown Cup3rd PrizeBlackberry Gum FeminisiertAmsterdam
2019Soft Secrets1st PrizeCandy Dawg AutoflowerAmsterdam
2019Expogrow2nd PrizeSticky Fingers FeminisiertSpain
2019Expogrow3rd PrizeFruit Cake FeminisiertSpain
2018Soft Secrets1st PrizeGG#4 FeminisiertAmsterdam
2018Expo Cultivate Chile1st PrizeBest Seed BankChile

How to grow autoflowering strains

The life cycle of autoflowering plants is so short that the key to success in their cultivation is to control all resources from the very beginning and to avoid any kind of deficiency or excess. While photoperiod varieties may have time to recover from pests or nutrient deficiencies, any problem with an automatic can prove fatal, as they don’t usually have the time to overcome it.

To prevent this, you must plan your grow well from the beginning, allowing your plant to use all the available resources in the most efficient way. From the day you put the seeds to germinate the clock starts ticking, and every mistake you make will result in a lower yield. So be careful and plan before you plant!

Growing autoflowerings outdoors

Everything rests on the climate of the region where you want to plant your autoflowering grow. Automatic strains are especially successful in warm areas with mild winters, where they can be grown for months beyond the summer, producing up to three harvests per year.

- Mediterranean climate:You can sow your first crop between mid-April and early May, when the frost season is over and the days are longer. This way, you’ll be harvesting in late July, and you can sow again in early August (so you would be harvesting again in October).

- Atlantic or continental climate:This climate involves lots of rain, less sun, and shorter summers. Therefore, you can usually only grow one crop per year. Ideally, you want to sow at the beginning of June so that you’re ready to harvest in late August.

The summer season is when autos work best outdoors because a number of factors come together at that time, allowing them to develop to their full potential. During this period of the year, the sun shines brighter, so the solar radiation received by the leaves is greater. The same thing happens with light intensity. If we add the fact that it’s brighter for longer throughout the day, what is the result? That the plants’ yielding capacity soars to higher heights.

Growing autoflowerings indoors

Autoflowering plants flower automatically in any light/darkness cycle, which means that, when you’re growing indoors, you don’t need to change the photoperiod for them to start the flowering process. The more hours of light they receive (as long as it’s above 12 hours per day), the more efficient their performance will be.

You can maintain a stable cycle of 18/6, 20/4, or 22/2 throughout their full life cycle, depending on how much you’re happy to spend on electricity. Some growers expose them to 24 hours of light from the very beginning until harvest time, but this is not usually recommended because the plants also need some rest and time to recover.

Nonetheless, many growers who have experimented with 24/0 and 18/6 light cycles claim that they didn’t notice any major differences in the final yield, so the decision depends on the specific strain that you’re growing and on your particular growing circumstances.

Which pot should you choose to plant autoflowering strains?

Autoflowers don’t like to be transplanted because this process stresses them out and hinders their growth. This is why you should grow the plants in the same pot from the beginning. It is best to give them plenty of space, so use pots of between 5 and 20 litres so that their roots can expand. We recommend that you work with pots of at least 7 litres, or 15 litres if you want them to get as large as possible. The vegetative phase usually lasts about 25 days, and, from that point, the plants will start to flower but will still carry on growing. In fact, they will normally continue to increase in size until about day 45.

How to prepare the growing medium for autoflowering varieties

Autos require an aerated substrate to help them make the most of the available resources and develop their roots well to accelerate all their metabolic processes. We advise you to work with a substrate that contains 1/3 coco coir and 2/3 peat; or, alternatively, a ready substrate, which you can find in most grow shops. If you’re opting for an organic grow, you can prepare a 'super soil' that contains all the necessary nutrients and microbial life for the entire life cycle of your plants. This will most definitely help you get the best out of them.

How to feed autoflower strains

While photoperiod strains require a complex nutritional strategy that changes throughout their life cycle, the autoflowering varieties can cope with a reduced diet thanks to their resistant genetics. Fertilise them in moderation! This means that you shouldn’t follow the manufacturer’s dosage guidelines by the book. As their roots are smaller, you only need to use 50% (or even 25%) of the recommended dose.

Given that the automatic varieties mature according to their age, any nutritional stress that they have to face (such as over-fertilisation) can greatly slow them down if not managed properly. And remember: it’s always easier to fix a nutrient deficit than to try to rectify a nutrient excess.

Nonetheless, some autoflowering varieties, such as our Gorilla Glue Auto and Bruce Banner Auto, are voracious beasts that require a stronger dose. But make sure you try small amounts first before moving on to larger doses.

How to water autoflowering strains

Try to avoid making your watering regime complicated. It’s always good advice to keep things as simple as possible, especially at the beginning of your plants’ life. In the case of autos, it is better to irrigate them with less water but more often to promote oxygenation. If there is something that can be problematic for them is a waterlogged substrate, which could lead to a stop in growth.

As a guideline, try to ensure that the plants don’t lack moisture, but that the pots aren’t too heavy. And avoid stressing the plants by making sure the nutrient solution is at a temperature of 22-23°C before watering, because the pH is also affected when the temperature fluctuates outside this optimal range.

What is the ideal pH for autoflowering plants?

The optimal pH for autoflowers is the same as for their photoperiod sisters. For autos growing in soil, use pH levels between 6.0 and 7.0, whereas hydroponic systems work well with levels between 5.5 and 6.5. You can of course also get good crops even with slightly lower or slightly higher pH measurements, depending on the stage of growth and the type of cannabis that you’re growing.

What’s the best optimised cultivation technique for autoflowerings?

As always, time is of the essence, so avoid stressing your autoflowering plants so they don’t slow down. Therefore, don’t trim or train them, and leave them alone as much as possible. If you really need to train them, use only mild low-impact methods, such as LST (Low Stress Training); and only with varieties that tend to grow in excess, such as the sativa-leaning autos.

If you want an autoflower that grows considerably so that you can try some of these training techniques, our classic Jack Herer Auto could be the right choice for you. This large plant grows vigorously both sideways and upwards. This is because the most branchy specimens have been given preference in its stabilisation, resulting in an ideal auto for the implementation of optimised cultivation techniques, providing you have a little bit of skill.

Following this ‘not pruning’ principle, growing techniques such as SCROG are not recommended for automatics. However, the SOG (Sea of Green) method may be suitable and can help maximise the yielding potential of these strains.

With this method, cuttings are left to vegetate for a very short period of time before prompting them to flower, something that can be perfectly achieved by replacing the cuttings with autoflowering strains. In addition to having a short vegetative period (often as short as two weeks), intermediate nodes that would normally produce lateral branching are also removed from the plants in order to promote the development of only one central cola. With this, what you achieve is that the plants don’t take up as much space.

Seedstockers’ best autoflowering genetics

Growing cannabis is a rewarding process that can also turn out to be complicated at times. And one of the most important decisions for getting off to a good start is choosing the right seed from the hundreds of varieties that exist on the market, which can be an overwhelming experience in itself.

Therefore, when starting an autoflowering grow, the secret of success lies in choosing a seed bank like Seedstockers that has managed to capture the great genetic diversity of this type of cannabis, always giving priority to the quality and stability of the plants over other secondary parameters. And, to make things easier when you choose your strain, it is important that you know how to differentiate between the several types of autoflower seeds available in our catalogue.

On a first level, all of our autoflowering varieties are feminised. As the name suggests, there’s no need to sex the plants to identify and get rid of the male plants (which can pollinate the female plants and produce seeds). But this is only the beginning.

Seedstockers’ USA autoflowering strains

North American genetics, and in particular the Californian varieties, have taken grows by storm all around the world. They have turned into a real object of desire thanks to their amazing combination of potency, flavour, and yielding capacity. And now Seedstockers is making it easier than ever for you to try these autoflowers from the other side of the Atlantic, thanks to our selection of 'Made in USA' autos that you can now buy on our website: a range of USA seeds that have been carefully chosen for their quality and various medicinal and recreational properties. We’ve also considered other factors such as genetic diversity, climate tolerance, and flowering times, among other traits. So be warned: whenever you’re ready to buy some USA seeds, keep in mind that our selection and quality can hardly be surpassed.

For instance, make sure you try our Cookies strains, such as Girl Scout Cookies Auto, an automatic classic that you will want to grow again and again. Or crosses such as Cookies & Cream Auto, a strain that achieves its autoflowering character thanks to its hybridisation with the famous Northern Lights Auto, and whose purpose is to produce as much THC as possible. Even our Gorilla Cookies Auto will surprise you with its yielding capacity and long-lasting effects.

But if you’re looking for a specific effect, such as relaxation, we recommend our Gelato #41 Auto, a very powerful plant that delivers a strong physical sensation and can offer temporary relief for the symptoms associated with anxiety, depression, or stress. Candy Dawg Auto is another North American variety worth mentioning that is already one of the cult seeds of recent times in its own right. This beauty stands out for its complex terpene mix and its extremely comforting effect.

Likewise, our catalogue includes high-THC automatic strains that meet the needs of those growers looking for the most intense psychoactive effects. One of these is Green Crack Auto, another hybrid responsible for the great evolution of cannabis in recent years, with the ability to produce a THC count of around 22% capable of knocking down even the most seasoned smokers. Or Sherbet Auto, the auto version of the famous award-winning Sunset Sherbet, so you can expect high THC levels that combine perfectly with refreshing, fruity flavours of mango and melon.

At Seedstockers we also have other pedigree North American hybrids that you should get to know. For example, Gorilla Glue Auto, one of the most beloved American varieties, famous for its high trichome production, which gives it a very sticky look that lives up to its name. Or Purple Punch Auto, another amazing strain with a robust taste that produces flowers that can turn purple or reddish if the temperature drops slightly.

Sherbet Auto

Seedstockers’ classic autoflowering strains

The Seedstockers’ catalogue also includes a selection of classic genetics in their autoflowering version: the best known and most cultivated strains in the world; cannabis icons that have already reached legendary status and have received the most awards thanks to their exquisite taste and powerful effect. Without a doubt, this is the perfect result after mixing the best old school marijuana hybrids.

A great example of these is Super Skunk Auto, a strain adored by recreational users which delivers a really astounding bodily effect and an invigorating mental experience. This is the perfect variety for special moments when you’re in need of a touch of happiness. Or Sour Diesel Auto, another cannabis legend that has gained many followers for its delicious flavour and powerful effect, becoming for years the favourite of many for embodying all the features of the best Californian weed.

Other sure bets are our White Widow Auto and Moby Dick Auto. Just like the strains previously mentioned, and despite being considered more contemporary, these two cannabis jewels have earned a place amongst the cannabis gods and are definitely here to stay.

Seedstockers Superior autoflowering strains

Last but not least, we couldn’t be prouder to present our Seedstockers superior genetic line: a selection of varieties created by our team of breeders.

After sharing both genetic information and selection and stabilisation knowledge, and based on many different crosses, we have selected the following 5 hybrids: Panty Punch Auto, Blue Moby Auto, Mack and Crack Auto, Thunder Banana Auto, and Apollo Black Cherry Auto. These represent everything that can be expected from a collaboration between breeders in possession of the best possible genetics, and our own breeders, who are among the best seed producers in the world. With amazing flavours, exceptional yielding potential, and a very competitive price, they are genetics with remarkable terpene and cannabinoid profiles which bring something really new to the cannabis community.

As you can see, Seedstockers offers a wide selection of autoflower strains for every taste, with an extensive range of flavours and properties that stand out for their balance and complexity, and which are ideal for novice and expert growers alike.

So don’t hesitate: if you really want to succeed in the wonderful world of autoflowerings and benefit from the best price on the market, you’ve certainly come to the right place!