G13 Labs cannabis seeds are a feminised and autoflowering seed range from a Barcelona-based breeder known for dense, resin-heavy indica hybrids and fast flowering times. Azarius has stocked G13 Labs since they started showing up at European cups — six strains in this collection, from the blueberry-gas Blue OG to the pure Afghani Double Black. Shop the range below or read on to pick the right one.
G13 Labs
Double Black
G13 Labs
Gigabud
G13 Labs cannabis seeds are a feminised and autoflowering seed range from a Barcelona-based breeder known for dense, resin-heavy indica hybrids and fast flowering times. Azarius has stocked G13 Labs since they started showing up at European cups — six strains in this collection, from the blueberry-gas Blue OG to the pure Afghani Double Black. Shop the range below or read on to pick the right one.
G13 Labs builds its catalogue around two things: short flowering times and big, sticky colas. If you're shopping for indoor grows where space and time matter, this is a breeder worth knowing. Most of the range finishes in 55–65 days, yields sit in the 450–600 g/m² bracket, and the plants stay compact enough for tent growers who can't let them stretch to the ceiling.
| Strain | Type | Flowering | Good for |
|---|---|---|---|
| Blue OG | Feminised, indica-dominant hybrid | 8–10 weeks | Growers who want flavour — berry and gas |
| Double Black | Feminised, 100% indica | 55 days | Short-cycle indoor growers chasing hash flavour |
| Gigabud | Feminised, 90% indica | ~8 weeks | Yield hunters who want a relaxed, not-too-heavy smoke |
| Auto Gigabud | Autoflower | 70–75 days seed to harvest | First-time autoflower growers wanting real yields |
| Pineapple Express | Feminised, 50/50 hybrid | 55 days | Balanced-effect smokers who want tropical terps |
| Peach Purée CBD | Feminised, sativa-dominant, 1:2 THC:CBD | 55–60 days | Buyers who want a gentler, functional smoke |
Read the table by flowering time first, then by type. A 55-day indica finishing in eight weeks is a different commitment than a 10-week hybrid — especially if you're working a single tent and planning multiple cycles a year.
G13 Labs is a solid bet for indoor growers who want dense, resin-heavy buds without waiting 12 weeks for a sativa to finish. The genetics lean indica-heavy across the catalogue, with classic parentage — Northern Lights, Big Bud, Black Domina, OG Kush, Blueberry — crossed and stabilised for predictable phenotypes. Double Black, for example, is backcrossed to 90% phenotype stability, which matters if you want every seed in the pack to look and smoke the same.
If you're after exotic sativa cultivars or the latest American cookies-and-cake hybrids, this isn't that breeder. G13 Labs is old-school European indica work — Afghani, Kush, and Skunk lineage done properly. That's the strength, not the limitation.
New to growing? Start with Auto Gigabud. Autoflowers forgive light-cycle mistakes, Gigabud genetics are forgiving on nutrients, and you'll have smokable buds in under three months from seed. If you want photoperiod control but still want a quick turnaround, Double Black is the pick — 55 days of flower, compact plants, very forgiving.
Intermediate grower looking for flavour? Blue OG or Pineapple Express. Blue OG leans berry-gas and indica-heavy, Pineapple Express is balanced 50/50 with tropical pineapple and lemon. Both reward a bit of training — topping, LST — with serious yields.
If THC isn't the priority, order the Peach Purée CBD. A 1:2 ratio (roughly 5% THC to 10% CBD) gives you something smokable without the ceiling that straight-THC strains hit. When in doubt, get Auto Gigabud — it's the most idiot-proof seed in the range.
Indoor is where these genetics were bred to perform. Expect 450–600 g/m² across the range with a decent light (we'd say 400W LED minimum for an 80x80 tent), standard bottle nutrients, and basic training. The plants stay short — most of the range is indica-dominant or balanced — so a 1.2m-tall tent is enough.
Outdoors, harvest window is late September to early October in Northern Europe for the photoperiod strains. Auto Gigabud can be run outdoors from May onwards and finishes regardless of season, which is the whole point of autoflowers.
G13 Labs is a Barcelona-based seed bank specialising in feminised and autoflowering indica-dominant hybrids. They've been breeding since the early 2010s and focus on short flowering times and high yields rather than exotic new genetics.
Auto Gigabud is the easiest — autoflowers don't need light-cycle changes, and Gigabud genetics tolerate nutrient mistakes better than most. Seed to harvest runs 70–75 days with yields of 500–600 g/m² indoors.
Five of the six strains we stock are feminised photoperiod seeds, and one (Auto Gigabud) is a feminised autoflower. Every pack contains 5 seeds. No regular (male-possible) seeds in the G13 Labs range at Azarius.
Double Black and Pineapple Express both finish in 55 days of flowering. Double Black is a pure indica, Pineapple Express is a 50/50 hybrid — pick by effect profile, not speed, since they finish identically.
One CBD option in the range: Peach Purée CBD, a sativa-dominant feminised strain with a 1:2 THC:CBD ratio (roughly 5% THC, 10% CBD). It's the only high-CBD G13 Labs seed we stock.
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.
