Sumo Seeds is an Amsterdam-based seedbank that's spent years building a catalogue of feminised and autoflowering cannabis strains bred for European growers. Shop the full Sumo Seeds range at Azarius — from classics like White Widow Original and Sumo's OG Kush to purple-hued autos like Violet's Wonder. Straightforward genetics, honest yields, shipping across the EU since 1999.
Buy Sumo Seeds — The Amsterdam Seedbank Guide
Sumo Seeds is a Dutch breeder working out of Amsterdam, and their catalogue splits cleanly into two camps: feminised photoperiod seeds for growers who want full control, and autoflowering seeds for anyone who wants a harvest without fiddling with light timers. We carry both formats in this category, covering roughly 20 distinct strains across indica-dominant, sativa-dominant, and balanced hybrids.
What makes Sumo worth buying? Honest descriptions, stable genetics, and prices that don't pretend they're breeding unicorns. The classics (White Widow Original, Sumo's OG Kush, Ultimate AK) are rebuilds of legendary cuts. The newer work — Violet's Wonder, Strawberry Cream, Berries & Cheese — shows where their breeding programme is heading: flavour-forward hybrids with recognisable parents.
Sumo Seeds at a Glance — Feminised vs Autoflower
| Format | Seed-to-harvest | Height | Good for |
|---|---|---|---|
| Autoflowering feminised | 9–11 weeks from germination | 50–120 cm | First-time buyers, small tents, balcony grows, stealth setups |
| Photoperiod feminised | 7–10 weeks flowering (plus veg) | Grower's choice | Experienced growers, SOG/ScrOG, maximising yield per plant |
If you're picking by timeline alone, autoflowers win on speed. If you're picking by ceiling (bigger plants, bigger yields, trained canopies), photoperiods win. Both are feminised — no male-plant surprises either way.
What We Carry
- Classic rebuilds — White Widow Original, Sumo's OG Kush, Ultimate AK, Sumo's Big Bud. The strains that built Amsterdam's reputation, re-stabilised from authentic parent lines.
- Flavour-led hybrids — Strawberry Cream, Berries & Cheese, Appleberry, Silver Buddha Haze. Bred for terpene profiles that actually taste like their names suggest.
- Purple genetics — Violet's Wonder and Violet's Wonder Auto, Thunderstruck. Anthocyanin-rich buds with violet, lilac, and blue-purple hues, plus the berry flavours that usually come with them.
- Fast autoflowers — AK Full Auto, White Cheese Auto, Sumo's OG Kush Auto, West Coast Bubbles Auto, Amnesia Ganja Haze Auto, White Widow Original Auto. All finish in 9–11 weeks from seed.
- Balanced hybrids — Sweet Harlem Diesel (a proper 50/50) and Cinderellas for growers who don't want to commit fully to indica or sativa.
How to Choose Your Sumo Seeds Strain
New to growing? Order an autoflower. Seriously — skip the photoperiod learning curve on your first go. Sumo's OG Kush Auto and White Widow Original Auto are both compact, forgiving, and finish in 10 weeks flat. You won't need to switch light schedules, and the plants stay under a metre, so a small tent or even a sunny balcony will do.
Growing indoors with a proper setup and want bigger numbers? Get the photoperiod seeds. Sumo's Big Bud is the yield king (up to 600g/m² in 7–8 weeks of flower), Ultimate AK pushes 500g/m² with denser bud structure, and Sumo's OG Kush delivers 20%+ THC with compact indica spacing that suits SOG. For sativa lovers, Amnesia Ganja Haze is the cup-winner of the line — 80% sativa, sharp lemon-citrus, genuinely loud.
Chasing flavour or colour? Violet's Wonder (feminised) is the showpiece — purple foliage, blueberry-lemon terpenes, 350–500g/m². Strawberry Cream actually tastes like strawberries and cream, which sounds like marketing copy until you grow one. When in doubt, shop the autoflowers first — they're harder to mess up.
Frequently Asked Questions
Are Sumo Seeds good for beginners?
Yes, particularly the autoflowering line. Strains like Sumo's OG Kush Auto, White Widow Original Auto, and West Coast Bubbles Auto finish in 9–10 weeks, stay compact, and don't require a light-schedule change. Buy the auto first, learn the basics, then step up to photoperiod genetics if you want bigger yields.
What's the difference between Sumo's feminised and autoflowering seeds?
Feminised photoperiod seeds need a 12/12 light cycle to flower and let you control plant size through vegging. Autoflowers start flowering on their own after 3–4 weeks regardless of light cycle, finish faster, and stay smaller — but you can't delay harvest or train them as aggressively.
Which Sumo Seeds strain has the highest yield?
Sumo's Big Bud is the yield leader — up to 600g/m² indoors and close to 1kg per plant outdoors in 7–8 weeks of flowering. Ultimate AK (500g/m²) and Silver Buddha Haze (up to 500g/m²) are close behind if you want more sativa character with your harvest.
Do Sumo Seeds ship across the EU?
Yes. We ship Sumo Seeds across the EU from our Amsterdam warehouse under free movement of goods. Orders are dispatched in discreet packaging, and we've been shipping seeds since 1999 — so the logistics are sorted.
Which Sumo Seeds strain produces purple buds?
Violet's Wonder (feminised) and Violet's Wonder Auto are the purple specialists — striking violet and lilac colouration plus blueberry-lemon flavour from the Amnesia Ganja Haze x Thunderberry cross. Thunderstruck also develops blue-purple tones from its Thunderberry x Old Afghani lineage.
Pair your seeds with a grow tent, LED, and nutrients from our grow shop — or browse other seedbanks if you want to compare genetics before you order.
Last updated: April 2026