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Auto Flower Cannabis Seeds

The Fastest, Easiest Way to Grow Premium Cannabis

Fast, furious and a wee bit sneaky….   Auto Flower Cannabis Strains are the go if you want a fast uniform crop indoors or an off season outdoor grow without waiting 4 months….

Below is CG Australia’s full Auto Seed Collection.   All strains are sourced from only the top breeders world wide.  Each strain is tried and tested with years of successful results based on thousands of reviews.  

Auto’s will start showing sex at about 4 to 5 weeks of the vegetative growth regardless of the light cycle and typically will finish (seed to full harvest in 8 to 10 weeks).   Autos are preferred by some growers for their consistency and predictability.   

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Auto Flower Cannabis Seeds & Growing Info

Modern Auto Flower Genetics have come a Looong way over the years with yield performance that can seriously rival some photo period strains, but without the longer grow period.    We’re talking 8-10 weeks whoa to go assuming you nail the germination stage and know what you are doing.

If you’ve after a faster and easier grow, autoflower cannabis seeds are a good solution. These seeds have transformed the experience for both beginners and experienced growers, providing a straightforward route from seed to harvest without the usual issues of light cycles and long growing times.

Key Benefits of Auto Flower Seeds

  • Fast lifecycle – Seed to harvest in as little as 8–12 weeks, allowing multiple harvests per year.
  • No light cycle management – Flowers automatically based on age, removing the need for strict lighting schedules.
  • Beginner-friendly – More forgiving and easier to manage compared to photoperiod strains.
  • Compact size – Smaller plants are ideal for discreet grows, balconies, and small indoor setups.
  • Flexible growing conditions – Performs well both indoors and outdoors, even in less predictable climates

Key Weaknesses of Auto Flower Seeds

  • Lower yield per plant – Typically produces less than large photoperiod plants.
  • Less recovery time – Short lifecycle means early mistakes (watering, nutrients, stress) can’t be corrected easily.
  • Limited training options – High-stress techniques like topping can reduce yield or stunt growth.
  • Less control over plant size and timing – Cannot extend vegetative phase to increase size or yield.
  • Genetic quality varies – Poor-quality autoflower seeds can lead to inconsistent results, making breeder selection critical.

What are Auto Flower Cannabis Seeds?

Unlike traditional photoperiod strains that need precise light adjustments to start flowering, autoflower plants follow their own internal clock. They automatically switch from vegetative growth to flowering based on age, not light exposure.

 Today’s autoflower cannabis seeds can produce potency, flavor, and yield that rival traditional strains—while finishing in almost half the time.

Auto flower cannabis seeds come from a special subspecies of cannabis known as Cannabis ruderalis. This plant adapts to tough climates with short growing seasons, which forces it to flower quickly regardless of daylight hours.

Breeders took that fast-flowering trait and mixed it with high-THC indica and sativa strains. The result is what we now refer to as modern autoflower cannabis—plants that are: Fast Compact Resilient Easy to grow Most autoflowers go from seed to harvest in as little as 8 to 12 weeks, making them one of the quickest growing options.

Why Grow Auto Flower seeds

Time is money… Many growers don’t want to tend to plants for months while balancing lighting schedules and stressing over mistakes.   They’re willing to take a hair cut on yield, for a faster growing crop that overall, is a bit easier to manage compared with photo period strains.   

Basically, it’s all about faster harvests & multiple grows each season.   A quicker turnaround can be a major advantage for Australian growers who are blessed with a long summer growing period.    The nature of Auto’s allow you to have multiple small, more manageable crops within a summer period, as opposed to an ‘all or nothing’ 6 foot behemoth. 

For indoor growers, this advantage is actually quite significant.  No Light Cycle Hassles.    Traditional cannabis requires switching from 18/6 light cycles to 12/12 to trigger flowering.   With auto’s, they flower on their own regardless of the light schedule.   

This simplicity is a key reason why autoflowers are recommended for beginners.

Compact and Stealth-Friendly Autoflower plants usually stay smaller, often ranging from 60 to 100 cm tall max. This means you can grow them on your balcony without stinking out the entire neighborhood.   

*Pro Tip – Grow Tomato plants in the same area as your Cannabis.  No-one will notice them!

Auto's vs Photo's - When to go Auto FAQ

Autoflowers aren’t always the go, but when they are, they really are.   If you’re a new grower and just want to see if you can do the damn thang, than try out Auto’s in the first instance.   You’ll likely find that actually you can do it and… do it well even.   Auto’s will shorten and simplify the whole process.    Of course you must start with the best genetics and super fresh, hiqh quality auto seeds

We’ve written a more detailed guide on this topic, so feel free to checkout  this page for more info.   Auto’s vs Photo’s, what’s best for you?   

Autoflower cannabis seeds produce plants that flower automatically based on age rather than light cycles.  Typically, the plant will start showing sex at approx 4 to 5 weeks into the vegetable cycle, and then will quickly transition from vegetative into flowering, enabling a faster growing cycle and early harvest.

Most autoflowers are ready to harvest in 8 to 12 weeks from seed.

Yes. They’re one of the simplest types of cannabis to grow due to their compact size, ease and resilience.

The latest Auto genetics are so incredible, producing yields that often surprise cannabis growers.    Per plant, yes of course, they yield less than photo period plants, however if you weigh up the speed of harvest and multiple crops, it’s highly debatable which option can actually yield more on a total yearly basis….

Yes, they’re well-suited for Australian conditions due to their rapid lifecycle and flexibility.   In many parts of Australia, you can grow Cannabis all year round and Auto’s allow you to compress the growing period so you can sneak a quick grow into a period that normally would not be possible for photo periods.

No. They grow well under a consistent light schedule however it’s definitely worth ensuring you have the right lighting spectrum for the flowering phase for best results.  They’ll flower regardless, but to get the most out of them, you’ll still want to ensure the right light spectrum.

Yes, but low-stress training is preferred to avoid stunting growth.

Nope.  Not anymore, modern strains can reach THC levels similar to photoperiod varieties.  It’s actually crazy when you see how fast they grow.  If you have never grown auto’s it’s worth trying so you can see the difference and then assess what works best for you in future. 

Most stay between 60 and 100 cm, making them compact and discreet.

CG Australia - Feminized AUTO CANNABIS SEEDS

Our Auto Strains have been curated over many years and we only keep the best ones with top performance based on thousands of reviews.   You can be assured these Auto’s are top performers and well with your attention assuming you nail the germination policy.

About the author:

As a passionate grower of all plants,  CG advocates for moderation and reverence of Cannabis as an ancient and powerful natural medicine. As the taboo is finally lifting worldwide, rational free thinking adults can experience the joy and wonder of growing a marijuana plant and we’re so thank-full to our members and the growing community for sharing responsibly.  Thank-you everyone.

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