Spliff Seeds is an Amsterdam seed bank we've stocked since their early days — straightforward genetics, fair prices, and strains built for growers who want results rather than hype. This category collects 26 feminised and autoflowering cannabis seeds from the Spliff Seeds catalogue, from the compact AK indica to sativa-leaning Amnesiac. Buy Spliff Seeds online at Azarius, shipping across the EU since 1999.
Buy Spliff Seeds — Feminised and Autoflower Cannabis Seeds
Spliff Seeds is a Dutch seed bank founded in Amsterdam that breeds feminised and autoflowering cannabis seeds aimed at home growers rather than commercial farms. Every pack in our shop contains 5 seeds, and the lineup splits cleanly into two formats: photoperiod feminised seeds that flower on a 12/12 light switch, and autoflowers that run on their own clock from germination to harvest in 9–12 weeks. If you're choosing between the two, the format matters more than the strain name — so start there.
Feminised vs Autoflower — Pick the Format First
Feminised seeds give you bigger yields, taller plants, and more control over when they flower. Autoflowers finish faster, stay smaller, and forgive light leaks and timing mistakes. Neither is "better" — they're built for different setups.
| Format | Time from seed | Height | Good for | Examples in this range |
|---|---|---|---|---|
| Feminised (photoperiod) | 10–14 weeks total | 60–200cm | Growers who want maximum yield and can control light cycles | White Widow, Super Skunk, Crystal White, Power Plant |
| Autoflower | 9–12 weeks total | 40–120cm (usually) | First-time growers, small spaces, outdoor in short summers | Dutch Autoflower, AK Autoflower, Amnesiac Autoflower, Zkittlez |
| Outdoor feminised | Harvest early Sept–Oct | Up to 250cm | Northern European gardens, balconies with sun | Fast Bud Outdoor, Gold Rush Outdoor |
If you've never grown before and you're working with a cupboard or a small tent, get an autoflower. You plug it in, you water it, it finishes. If you've got a proper tent with a timer and you want 500g/m² or more, shop the feminised range.
Indica, Sativa, or Hybrid — What to Expect
Spliff Seeds leans heavily indica-dominant, which makes sense for indoor growers who don't want plants climbing into the ceiling lamp. Their indica-leaning feminised seeds — AK, Blue Berry, Snow White, White Widow, Crystal White, Moon Walker Kush — stay between 60cm and 100cm indoors and finish in 8–9 weeks of flowering. Compact, mould-resistant, predictable.
For sativa fans, Power Plant and Spliff's Strawberry are the unusual ones: 80–90% sativa genetics that somehow stay under 120cm and finish in 8–9 weeks. Sativa yields without the sativa stretch, which is rare. Amnesiac (the photoperiod version) runs 9–11 weeks for citrus-heavy, daytime-effect buds.
For outdoor growers in northern Europe — and we get asked about this every spring — Fast Bud Outdoor and Gold Rush Outdoor are the two to order. Both are back-crossed for early finishes (Gold Rush is done by early September) and both handle Dutch weather without complaint.
What We Carry from Spliff Seeds
- Classic Dutch genetics — White Widow, Super Skunk, Power Plant, Northern Lights-crossed varieties. The strains that put Amsterdam on the map.
- Indica workhorses — AK, Snow White, Crystal White, Mega Power Plant, Moon Walker Kush. Compact, heavy-yielding, beginner-forgiving.
- Flavour-led hybrids — Blue Berry, Bubblegun, Spliff's Strawberry, Purple Berry Kush, Spliff Cheese. For growers who care about terpenes.
- Autoflowers — Dutch Autoflower, Dutch Blue Autoflower, AK Autoflower, Amnesiac Autoflower, Zkittlez, White Widow Autoflower, Spliff Cheese, Girl Scout Cookies, Lemon Cream Kush, Mega Power Plant Autoflower. 10 autos covering every flavour profile.
- Outdoor feminised — Fast Bud Outdoor and Gold Rush Outdoor, both built for short northern summers.
- Modern crosses — Girl Scout Cookies Autoflower and Zkittlez bring newer American genetics into the Spliff Seeds lineup.
How to Choose Your Spliff Seeds
First-time grower with a small space? Buy Dutch Autoflower or AK Autoflower. Both finish in 9–11 weeks from seed, stay under 1 metre, and don't need a light timer to switch to flowering. If you want something with more character, Zkittlez Autoflower and Spliff Cheese Autoflower bring proper flavour without extra difficulty.
Intermediate grower with a tent and a timer? Order the feminised classics — Super Skunk, White Widow, or Mega Power Plant. These are stable, high-yielding, and low-drama. Mega Power Plant in particular is our "just works" recommendation: 500–600g/m² from 80–100cm plants, bred from 16 stabilised generations of Northern Lights crossed with Power Plant.
Experienced grower chasing specific terpenes or effects? Look at Moon Walker Kush (Blue Medi Kush × Skywalker OG, lemon-diesel), Purple Berry Kush (serious bag appeal with fast finishes), or Spliff's Strawberry if you want sativa effects from a compact plant. When in doubt, start with Mega Power Plant — it's the one we'd grow ourselves if we had to pick one.
Frequently Asked Questions
Are Spliff Seeds good for beginners?
Yes — their autoflower range is specifically built for first-time growers. Dutch Autoflower and AK Autoflower finish in 9–11 weeks, stay compact, and don't need light-cycle changes. For photoperiod beginners, Mega Power Plant and Super Skunk are the most forgiving feminised options.
How many seeds come in a Spliff Seeds pack?
Every Spliff Seeds pack in our shop contains 5 feminised or autoflowering seeds. No regular/male seeds in this range — everything is feminised, so you won't be culling males halfway through flowering.
What's the difference between Spliff Seeds feminised and autoflower seeds?
Feminised seeds flower when you switch the light schedule to 12/12 and generally yield more (400–650g/m²). Autoflowers flower on their own timer regardless of light hours, finish faster (9–12 weeks from seed), and stay smaller. Autoflowers are easier; feminised photoperiods yield bigger.
Which Spliff Seeds strain yields the most?
Crystal White and Mega Power Plant top the range at 550–650g/m² and 500–600g/m² indoors respectively. Both are indica-dominant, compact, and finish in 8–9 weeks. For outdoor yield, Purple Berry Kush hits up to 650g per plant.
Can I grow Spliff Seeds outdoors in northern Europe?
Yes — Fast Bud Outdoor and Gold Rush Outdoor are specifically back-crossed for northern summers. Gold Rush finishes by early September, Fast Bud shortly after. Dutch Blue Autoflower also handles cool nights well and turns genuinely blue when temperatures drop.
How long do Spliff Seeds take from germination to harvest?
Autoflowers run 9–12 weeks total from seed. Feminised photoperiods need 2–4 weeks of vegetative growth plus 8–11 weeks of flowering, so 10–15 weeks total depending on strain. Power Plant, AK, and Super Skunk are the fastest photoperiod finishers at 8 weeks flowering.
Last updated: April 2026