BSB Genetics is a Birmingham-born seed bank that's been quietly building a catalogue of genuinely serious strains — from 33% THC monsters like Blackberry Nuggets to fast-finishing autos like Auto Strawberry Milkshake. We stock 18 BSB feminised and autoflowering seed packs at Azarius, shipping across the EU since 1999. If you want proper genetics without the Dutch-boutique markup, start here.
BSB Genetics
Gorilla #4
BSB Genetics
Auto Sweet Tooth
BSB Genetics
24K Tangie
BSB Genetics is a Birmingham-born seed bank that's been quietly building a catalogue of genuinely serious strains — from 33% THC monsters like Blackberry Nuggets to fast-finishing autos like Auto Strawberry Milkshake. We stock 18 BSB feminised and autoflowering seed packs at Azarius, shipping across the EU since 1999. If you want proper genetics without the Dutch-boutique markup, start here.
BSB Genetics is a UK-based breeder working out of Birmingham, and what sets them apart is consistency. Every pack we've sold — and we've moved a lot — contains five feminised seeds with phenotype expression that matches the description. No surprise hermies, no ten-week "8-week" autoflowers. Just honest genetics at a fair price.
The catalogue splits cleanly into three groups: classic Amsterdam-style photoperiods (Amnesia Haze, Lemon Haze), the Cali Collection of American cup winners (Cali Cookies, Cali Cherry Pie, Cali Dream, 24K Tangie), and a strong autoflower line-up that actually hits the yields on the label. If you've ever ordered an auto that promised 600g/m² and gave you 150g of airy popcorn, BSB will restore your faith.
| Strain | Type | Flowering/Cycle | Good for |
|---|---|---|---|
| Auto Critical+ | Autoflower | 9–10 weeks seed-to-harvest | First-time growers buying their first seed pack |
| Auto Sweet Tooth | Autoflower indica | 9 weeks | Small spaces, pest-prone rooms |
| Mandarine Dream XL Auto | Autoflower | 9 weeks, up to 650g/m² | Auto growers chasing photoperiod yields |
| Amnesia Haze | Photoperiod sativa | 9–10 weeks flower | Buyers who want the Amsterdam coffeeshop standard |
| Blackberry Nuggets | Photoperiod indica | 8–9 weeks flower, 33% THC | Experienced growers shopping for maximum potency |
| Gorilla #4 | Photoperiod hybrid | 8–9 weeks, 26%+ THC | Resin chasers and hash makers |
| Bruce Banner | Photoperiod sativa | 9–10 weeks, up to 32% THC | Daytime-use growers wanting heavy yields |
| The Runtz | Photoperiod indica-hybrid | 8–9 weeks, 29% THC | Flavour hunters after candy-fruit terps |
Read the table by cycle length first, then match the "Good for" column to your setup. A 10-week flowering Haze in a cupboard with one small fan is a different job to Auto Critical+ under an LED panel.
New to growing? Buy Auto Critical+ or Auto Sweet Tooth. They finish in 9 weeks from seed, stay under 90cm, and don't punish mistakes. Five seeds per pack means you can afford to kill one learning — and you probably will.
Intermediate grower with a tent and a schedule? Order a photoperiod. Amnesia Haze is the safe pick if you like sativas; Gorilla #4 if you want dense, resin-drenched buds that make decent hash. The Cali Collection is where things get interesting — Cali Cookies and 24K Tangie deliver proper American dispensary flavours without shipping from California.
Experienced and chasing numbers? Get Blackberry Nuggets (33% THC is genuinely rare), Bruce Banner for the 2013 Cannabis Cup pedigree, or Mandarine Dream XL Auto if you want to see what an autoflower can really do. Honest limitation: the 33% phenos in Blackberry Nuggets are a minority within the pack. You'll still get a serious plant from the others, but don't expect five clones of the headline number.
When in doubt, start with Auto Critical+. It's the strain we'd hand a mate who's growing for the first time.
Yes. BSB has been breeding out of Birmingham for over a decade and their feminised packs show tight phenotype consistency. We've sold hundreds across the EU with minimal issues — germination rates are strong and the strains match their advertised flowering times and yields.
Auto Critical+ or Auto Sweet Tooth. Both are autoflowers that finish in 9–10 weeks from seed, stay compact at 80–90cm, and handle grower mistakes well. Auto Critical+ brings the classic Critical sweet citrus-skunk flavour; Auto Sweet Tooth leans indica-sweet with natural pest resistance.
Blackberry Nuggets tops the range at up to 33% THC — one of the highest figures on any seed bank catalogue. Bruce Banner follows at 32%, then Gorilla #4 with phenos past 30%. These are photoperiod feminised seeds and best suited to growers with some experience under their belt.
Five feminised seeds per pack across the entire range — photoperiod and autoflowering strains alike. No 3-seed or 10-seed options, which keeps pricing consistent and makes it easy to buy two different strains to run side by side.
Autoflowers if you have limited space, no light timer, or want faster harvests (9–10 weeks seed-to-harvest). Photoperiods if you have a proper tent, want bigger yields, and can run 18/6 veg then 12/12 flower. Amnesia Haze and Blackberry Nuggets both outyield the autoflowers, but they take longer and need more kit.
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.
