Serious Seeds
Serious Seeds cannabis seeds are a Dutch breeder's catalogue of stabilised, award-winning genetics — AK-47, Bubble Gum, White Russian, Kali Mist and more — bred by Simon for consistency across every pack. Buy Serious Seeds feminised and autoflowering seeds from Azarius, Amsterdam's original online smartshop since 1999. Sixteen cups on AK-47 alone tells you what to expect.
Serious Seeds
Bubble Gum
Serious Seeds
Serious 6
Serious Seeds
Serious Kush
Serious Seeds cannabis seeds are a Dutch breeder's catalogue of stabilised, award-winning genetics — AK-47, Bubble Gum, White Russian, Kali Mist and more — bred by Simon for consistency across every pack. Buy Serious Seeds feminised and autoflowering seeds from Azarius, Amsterdam's original online smartshop since 1999. Sixteen cups on AK-47 alone tells you what to expect.
Buy Serious Seeds — The Azarius Buying Guide
Serious Seeds is a small Dutch breeder founded by Simon in 1994, known for one thing above everything else: stability. Where most seed banks chase trends, Serious Seeds has spent 30 years refining the same core lineup — AK-47, Bubble Gum, Chronic, Kali Mist, Warlock, White Russian. Every seed in every pack is the same plant. That's rarer than it sounds.
We've been selling Serious Seeds at Azarius since the late '90s, and the catalogue has barely changed — because it doesn't need to. A 1995 Kali Mist win and a 2000 re-win with the same strain? That's the brand in one sentence.
Serious Seeds strain chooser
| Strain | Type | Good for |
|---|---|---|
| AK-47 | Sativa-dominant, feminised | First-time Serious Seeds buyers — 16 cups, manageable height |
| Bubble Gum | Hybrid, feminised | Growers who want flavour — candy-sweet terpenes, compact plant |
| White Russian | Hybrid, feminised | Potency hunters — 22% THC, double Cup winner |
| Kali Mist | 90% Sativa, feminised | Sativa purists with vertical space and patience |
| Warlock | Indica-dominant, feminised | Balanced effect — cerebral lift with body relaxation |
| Motavation | Indica-dominant, feminised | SOG / ScrOG growers — short, dense, low fuss |
| Serious 6 | Near-pure Sativa, feminised | Northern European outdoor — finishes in 55–60 days |
| Double Dutch | Indica/Sativa hybrid, feminised | Outdoor growers wanting resin-heavy Sativa buds on Indica structure |
| Serious Happiness | F1 hybrid, feminised | Beginner-friendly Warlock × AK-47 — abundant, forgiving |
| Serious Kush | Indica-dominant, feminised | Kush flavour with serious yields — OG Kush × White Russian |
| CBD-Chronic | 1:1 CBD:THC, feminised | Buyers wanting functional flower, not knockout potency |
| Strawberry AKeil | Sativa-dominant, feminised | Flavour-first growers — strawberry and candy terpenes |
| Autoflowering White Russian | Auto, feminised | Small spaces, quick turnarounds — 75 days seed-to-harvest |
Simon has said in interviews that he won't release a strain until every seed in the pack performs the same. That's why the catalogue is short. It's also why experienced growers keep coming back — you order a 6-pack of AK-47 and you get six AK-47 plants, not six rolls of the dice.
What makes Serious Seeds different
Three things. First, the award record is absurd — AK-47 alone has won 16 cannabis competitions since the late '90s, arguably the most decorated strain still in active production. Second, the strains are old-school Dutch stable — these were bred before "exotic genetics" was a marketing phrase, and they grow like they were designed for a grow tent rather than Instagram. Third, Serious Seeds actually crosses its own work — White Russian is AK-47 × White Widow, Serious Kush is OG Kush × White Russian, Serious Happiness is Warlock × AK-47. The catalogue builds on itself.
How to choose your Serious Seeds strain
New to Serious Seeds? Buy AK-47 or Serious Happiness. AK-47 is the flagship for good reason — sativa-leaning, manageable height, and about as forgiving as a Sativa gets. Serious Happiness is even easier, built as an F1 hybrid specifically for abundant indoor harvests with minimal drama.
Chasing potency or a specific flavour profile? Order White Russian for the 22% THC and crystal coverage, Bubble Gum for the candy terpenes that Serious built their 1990s reputation on, or Strawberry AKeil for a newer sweet-Sativa profile. If you want something that finishes before the Dutch autumn ruins your outdoor crop, Serious 6 wraps up in 55–60 days.
Growing for effect rather than a punch in the face? CBD-Chronic runs a 1:1 CBD:THC ratio across every phenotype — not a weak plant, just a functional one. Short on vertical space? Motavation stays short and dense, and Autoflowering White Russian finishes seed-to-harvest in roughly 75 days without a light-cycle change.
When in doubt, start with AK-47. Sixteen cups can't all be wrong.
Shopping Dutch genetics more broadly? We also carry seed banks from Sensi, Dutch Passion, and Paradise. Stocking up on grow gear at the same time saves a second shipping run — check our grow tents and LED lights.
Frequently Asked Questions
Which Serious Seeds strain should I buy first?
Buy AK-47 if you want the flagship — 16 cannabis cup awards, sativa-dominant, and manageable height. If you want something even more beginner-friendly, order Serious Happiness, the Warlock × AK-47 F1 cross built for forgiving indoor grows.
Are Serious Seeds feminised or regular?
Almost the entire current Serious Seeds catalogue is feminised, including AK-47, Bubble Gum, White Russian, Kali Mist, Warlock and Serious Kush. Autoflowering White Russian is the one autoflower option. You won't find regular seeds in the Serious Seeds range we stock.
Why is AK-47 so decorated?
AK-47 has racked up 16 competition wins since the late 1990s because Simon stabilised it properly — every seed grows into the same plant, with dense crystal-coated buds and a sativa-leaning effect that doesn't run away in height. That consistency is what judges keep rewarding.
What's the difference between White Russian and Autoflowering White Russian?
White Russian is the original photoperiod feminised seed — AK-47 × White Widow, double Cannabis Cup winner, 22% THC. Autoflowering White Russian is a pheno-hunt through unreleased auto genetics from the same parents, producing compact 70–90 cm plants that finish in roughly 75 days without flipping the light cycle.
Does Serious Seeds make a CBD strain?
Yes — CBD-Chronic is their dedicated 1:1 CBD:THC feminised seed, crossing the legendary Chronic with the CBD-rich Remedy. Every phenotype tested at roughly 5.8% CBD and 5.4% THC, which is unusually consistent for a CBD strain. Earthy-sweet flavour, up to 600g/m² yield.
Last updated: April 2026
Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.