Advanced Seeds

About Advanced Seeds

Advanced Seeds started out in the early 2000s as a small operation in Murcia, in the south of Spain. The people behind it were growers first – their goal was to take the best Dutch genetics and refine them: better germination, stronger plants, more reliable results. That early focus on quality over quantity shaped everything they’ve done since.

One of the things that sets them apart is how seriously they take their production process. Every strain is grown organically – no synthetic fertilisers or artificial additives – and each variety is kept completely isolated to prevent any cross-contamination. It’s the kind of approach that takes more effort, but it shows in the consistency of the seeds. Their feminized range came a little later, once they’d worked out how to do it properly without relying on genetic manipulation. That attention to process has kept them relevant in a market where shortcuts are everywhere.

Today Advanced Seeds is one of the more respected mid-sized Spanish banks. They’re not trying to out-hype the big names – they just put out genetics that growers keep coming back to, across feminized, autoflowering, and triploid lines.

What’s in the Advanced Seeds Range?

Feminized Seeds

The bulk of the Advanced Seeds catalogue is feminized photoperiod strains. You’ll find well-known crosses like Critical Soma, Black Diesel, Critical Purple Kush, Ice Kush, and Early Widow – strains built around yield, flavour, or a bit of both. If you want a solid feminized plant without paying premium breeder prices, this is a reliable place to look. Expect dense structure, good resin production, and flavour profiles that range from fruity to earthy to full-on diesel.

Autoflowering Seeds

Advanced Seeds has built a solid auto range alongside their photoperiod strains. Auto Biodiesel Mass is one of their standouts – a heavy, resinous plant with a diesel-skunk character that’s well-suited to extractions.

Auto Critical Soma and Auto Jack Herer are also popular picks. The autos tend to stay compact and finish quickly, which makes them a good fit for smaller setups or growers who want to turn rounds quickly.

Triploid Seeds

More recently, Advanced Seeds has moved into triploid genetics – a newer development in cannabis breeding that produces seedless, highly uniform plants. Their Runtz Triploid and Papaya Triploid are part of this line. It’s not for everyone, but if you’re chasing consistency and maximum resin output, it’s worth a look.

Collection Packs

Advanced Seeds also offers feminized and automatic collection packs – a good option if you want to sample a few strains without committing to a full pack of any single variety.

These typically bundle three different seeds together, which makes them a decent way to get to know the range.

Why Buy Advanced Seeds From SeedMasters.com?

• A solid range at fair prices – Advanced Seeds sits in a sensible price bracket. You’re getting genuine Spanish-bred genetics with a strong rep for stability, without the markup that comes with the biggest brand names.
• Organic production, proper process – Advanced Seeds use organic methods throughout and keep every strain in isolation. That matters for genetic purity, and you can usually tell in the results.
• Fast, discreet worldwide delivery – your order ships quickly and arrives well-packaged, with stealth delivery options also available.
• Helpful, no-nonsense advice – not sure which strain would complement your collection? Just ask our team.
• Trusted by many across the USA, Canada, UK and Europe.

Frequently Asked Questions

Where are Advanced Seeds based?

Advanced Seeds is based in Murcia, in southern Spain. They started out as a small local operation and have grown into one of the more respected names in Spanish cannabis breeding.

Do Advanced Seeds use organic methods?

Yes. Advanced Seeds grow their plants using organic fertilisers and natural insecticides only – no synthetic additives. Each strain is also grown in isolation to protect genetic purity. It’s a more labour-intensive approach, but one they’ve stuck with throughout.

Are Advanced Seeds good for beginners?

Most of them, yes. Their strains tend to be stable and forgiving, which is exactly what you want when you’re starting out.

The Advanced autoflowering range in particular is well-suited to beginners – compact, fast, and straightforward to manage.

What are the most popular Advanced Seeds strains?

Critical Soma is a consistent favourite – it’s a flexible all-rounder that does well in most setups.

Auto Biodiesel Mass is popular with growers focused on resin production, and Black Diesel tends to attract sativa fans looking for something with a bit of bite.

Critical Purple Kush is another one that comes up often, particularly for its colours and flavour.

What types of seeds does Advanced Seeds offer?

Advanced Seeds produce feminized photoperiod strains, autoflowering varieties, and more recently triploid seeds.

They also offer collection packs that bundle multiple strains together – handy if you want to try a few things without committing to a full pack of each.

How do Advanced Seeds compare in price?

They’re positioned as a quality mid-range bank – better than the budget options, noticeably more affordable than the premium tier. The value is particularly good given the organic production methods and the consistency growers report across phenos.

If you want reliable Spanish genetics without the premium price tag, Advanced Seeds is worth a proper look.

Browse the full Advanced Seeds range at SeedMasters.com and pick up free seeds with your order.