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Outdoor Seeds

Fast Outdoor Strains

Explore fast outdoor cannabis strains selected for shorter flowering periods and quicker seasonal finishes. Compare rapid, open-air genetics from respected breeders, including options suited to shorter growing seasons.
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  • OG Kush Fast

    20%OFF

    OG Kush Fast Seeds

  • Shaman
    5.0 (1)
    5%OFF

    Shaman Dutch Passion

  • Big Bud Fast

    20%OFF

    Big Bud Fast Seeds

  • Critical Bilbo Fast

    20%OFF

    Critical Bilbo Fast Seeds

  • Critical Fast

    20%OFF

    Critical Fast Seeds

  • Durban Poison Fast

    20%OFF

    Durban Poison Fast Seeds

  • Green Crack Fast

    20%OFF

    Green Crack Fast Seeds

  • Mazar Fast

    20%OFF

    Mazar Fast Seeds

  • Skunk Fast

    20%OFF

    Skunk Fast Seeds

The seeds available in our store are very diverse. In this category, we primarily present seeds of photoperiod strains, meaning full-season varieties, but with a slight twist.

By crossing autoflowering strains with full-season varieties, growers in countries where cannabis cultivation is legal have achieved a new level of quality. This quality has taken the form of fast-flowering strains, also known as fast versions or semi-autos.

However, it’s important to note that semi-autos do not flower automatically. They require specific lighting conditions and changes in light exposure to trigger flowering. Semi-auto simply means a seed that contains the genes of both autoflowers and full-season plants, but it’s still a photoperiod strain. So how is it different from autoflowers and full-season varieties?

What are fast outdoor strains?

Fast-flowering strains – this is the best way to describe these seeds in Polish. Fast version strains are used by growers in Western countries for outdoor cultivation, under the sky, not under lights. Although they can be grown indoors, it’s in the right soil and climate conditions that these strains truly show their full potential.
Autoflowers bloom on their own. Full-season strains mature at the end of the season (usually in October), and semi-autos? These strains in the Netherlands, Czech Republic, California, or Uruguay flower much shorter than full-season varieties. This means that growers in these countries can expect their harvests about one or two weeks earlier than with full-season strains. Sometimes, the period is shorter by three weeks, but that’s a rare case for only a few strains.

Fast-flowering strains are ready for harvest as early as September. And that’s how you should understand the term semi-auto. For beginners, this term might be confusing, which is why we've provided the correct definition here. At the same time, we remind you that the seeds in our store are intended for collection purposes only. If you're a fan of collecting fast outdoor strains, these seeds will be a great addition to your collection.

So, what can you find in our assortment? What seed brands are available at GanjaFarmer? Check it out!

What fast outdoor strains can you find at GanjaFarmer?

From sativas, indicas, to all kinds of hybrids, including those with wild cannabis (cannabis ruderalis) genes. Our offer includes varieties such as:
  • Biddy Early from Serious Seeds;
  • Fast Critical Skunk from Big Seedbank;
  • Fast Amnesia 47 from the same supplier;
  • Green Poison from Sweet Seeds;
  • Easy Sativa (Female Seeds);
  • Purple 1 (Dutch Passion);
  • Durban Poison from the same seedbank, and
  • many, many more.
    Among the seeds available in our assortment, as we mentioned earlier, you’ll find every type: sativas, indicas, and hybrids.

    In countries where cannabis cultivation is legal, fast outdoor sativa strains can grow up to two meters. Their leaves have long, slender fingers, and the buds are not as compact as indicas, but they are long and equally abundant.

    Indicas, on the other hand, are a bit shorter, measuring between one and 1.5 meters. Their leaves are shorter and wider, and the buds are denser and coated with resin rich in active ingredients.

    Hybrid strains growing in countries with legal cultivation may vary in height. For example, Durban Poison is a beautiful, pure sativa that can grow outdoors to an astonishing three or even four meters!

    We remind you once again that GanjaFarmer seeds are intended for collection purposes only. Are you a passionate collector looking to expand your collection with fast-flowering strains? Do you want to enrich your seed collection with unique, original varieties or legendary classics? Then you’ve come to the right place, because at GanjaFarmer you’ll find exactly what you need!

    We invite you to browse our selection and wish you happy shopping – we're confident that your purchases will be very fruitful!

    Why Ganja Farmer?

    Proven high-quality seeds
    Competitive prices
    90% germination guarantee
    Fast and discreet USPS shipping
    Over 220,000 orders shipped since 2009
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