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Mix Pack Auto Seeds – 420 Fast Buds | Premium Mystery Autoflower Assortment · High THC & Fast Yields

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The Mix Pack Auto by 420 Fast Buds is your ultimate ticket to a premium cannabis tasting menu. This mystery assortment features top-tier autoflowering genetics, delivering a diverse range of flavors, colors, and effects. Perfect for indecisive growers or those seeking unbeatable value, these fast-flowering seeds guarantee high-THC yields and an exciting, hassle-free cultivation experience.
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The Mix Pack Auto by 420 Fast Buds is a premium mystery assortment of top-tier autoflowering seeds designed to give you a spectacular variety of high-THC harvests in a single run.

Many growers fall into the routine of cultivating just one strain per cycle, limiting their entire harvest to a single flavor profile and a monotonous effect.

Growing only one variety means you miss out on the incredible diversity of modern Cali genetics, often leading to strain fatigue as you stare at jars full of the exact same buds for months. You waste the potential of your grow space, which could easily accommodate a versatile stash tailored for different moods, times of day, and social settings.

The Mix Pack Auto shatters that limitation by offering a cost-effective, surprise selection of Fast Buds' finest autoflowers. Because they all share the autoflowering trait, you can grow a vibrant, multi-strain garden simultaneously under the same light cycle, delivering an explosive variety of aromas, colors, and effects without any extra hassle.

The Ultimate Indoor Tasting Menu

When you pop these seeds indoors, your grow tent transforms into a high-end cannabis boutique. Since all the seeds in the Mix Pack Auto are autoflowering, you can run them together under a simple 18/6 or 20/4 light schedule from seed to harvest. You don't need separate veg and bloom rooms, making it incredibly easy to manage a diverse canopy.

Imagine opening your tent to find neon-green Sativas stretching next to deep purple Indicas, each exuding its own unique terpene profile—from sweet berries and citrus to pungent diesel and earthy kush. It is a sensory explosion that keeps the cultivation process exciting every single day.

To get the most out of this indoor setup, keep your canopy even by placing taller plants on the edges and shorter ones directly under the light. This ensures every mystery strain reaches its maximum potential, giving you a connoisseur-grade tasting menu right at home.

The Stealthy Outdoor Guerrilla Garden

Taking the Mix Pack Auto outdoors is like planting a treasure chest in nature. Because these are fast-flowering autos, they are perfect for short summers or multiple consecutive harvests in warmer climates. Their generally compact size makes them ideal for balconies, terraces, or hidden guerrilla spots where discretion is key.

What makes this pack shine outdoors is the genetic diversity. If a sudden pest or weather shift hits your area, having a mix of different strains means some will naturally be more resilient than others, ensuring you never lose an entire crop to a single vulnerability. It is a built-in insurance policy for your outdoor garden.

Plus, harvesting different strains at slightly different times spreads out the trimming work. You get to enjoy a rolling harvest of unique Cali genetics, filling your stash boxes with a colorful array of buds that perfectly capture the essence of the sun.

How to choose the best use for you

Deciding how to deploy your Mix Pack Auto depends entirely on your goals and available space. Both indoor and outdoor environments offer fantastic ways to unlock the mystery of these premium seeds.

  • If you are a control freak who loves maximizing resin production, the indoor tasting menu will suit you better.
  • If you prefer a low-maintenance, sun-kissed harvest with natural resilience, the outdoor guerrilla approach is your best bet.
  • If you get bored easily smoking the same weed, growing the whole pack at once is the ultimate solution.
  • If you are on a tight budget but want top-tier Cali genetics, this pack offers the best value per seed.

Advantages and benefits that show up in every case

  • Because it includes a diverse genetic mix, you can enjoy a wide range of effects, which means you will always have the perfect bud for relaxing, socializing, or getting creative.
  • Thanks to the autoflowering nature of all included seeds, you can keep a single light schedule, which means less equipment and zero light-leak stress.
  • Because the pack features Fast Buds' premium genetics, you get vigorous growth and high resistance, which means fewer headaches and a more forgiving grow for beginners.
  • Thanks to the discounted bundle pricing, you access elite Californian strains at a fraction of the cost, which means massive savings without sacrificing quality.
  • Because every seed is a surprise, you experience the thrill of discovery, which means your daily garden checks become an exciting adventure.

Technical specifications

  • Breeder: 420 Fast Buds
  • Type: Autoflowering feminized
  • Dominance: Mix of Indica, Sativa, and Hybrid
  • Genetics: Random selection of premium Fast Buds autoflowers
  • Total cycle: 56–77 days approx. (8–11 weeks)
  • Yield Indoor: 350–650 g/m² (1.15–2.13 oz/ft²)
  • Yield Outdoor: 50–350 g/plant (1.76–12.35 oz/plant)
  • Height: 0.60–1.50 m (1.97–4.92 ft)
  • Difficulty: Low (ideal for beginners)
  • Ideal climate: Highly adaptable; thrives in temperate, Mediterranean, and indoor environments
  • Recommended pot: 11–18 L final pot early on
  • THC: 19–28.5% approx.
  • CBD: < 1% approx.
  • Aromatic profile: Extremely varied (fruity, earthy, diesel, sweet, citrus)
  • Effect: Diverse range from deep physical relaxation to euphoric cerebral highs

Stages and monitoring of Mix Pack Auto

Quick overview: Auto · 420 Fast Buds · 56–77 days cycle approx. · Ideal for diverse indoor/outdoor setups.

Safe start: Germinate at 22–25 °C and plant directly into the final pot to avoid stress.

  • Keep humidity around 65–70%.
  • Water sparingly in a ring around the seedling.
  • To ensure explosive root growth from day one, apply Great White Premium Mycorrhizae Complex.
  • Maintain temperatures between 22–26 °C.

Directed growth: Provide 18–20 hours of light daily and avoid aggressive high-stress training.

Efficient flowering: Lower humidity to 40–50% to protect the dense, diverse buds from mold.

  • Ensure strong airflow across the canopy.
  • Support heavier branches if some strains stretch significantly.
  • To maximize resin and density, add B'Cuzz Bloom Stimulator by Atami.
  • Monitor trichomes individually, as harvest times will vary.

Harvest and refinement: Flush each plant 7–10 days before its specific harvest window.

  • Chop when trichomes match your desired effect.
  • Dry slowly at 18–22 °C and 50–60% RH.
  • Cure in glass jars for at least 2–4 weeks.
  • Label jars by aroma to organize your mystery stash.

Frequently Asked Questions

Will I know which strain is which in the Mix Pack Auto?

No, the seeds are mixed randomly and are not individually labeled. Half the fun is using your senses to identify the unique terpene profiles, colors, and growth structures as they develop. It is a true mystery adventure for your garden.

Can I grow all the seeds in the same tent?

Absolutely. Since they are all autoflowering varieties from Fast Buds, they thrive under the exact same light cycle (usually 18/6 or 20/4). Just be prepared to do some light canopy management, as some strains may grow taller than others.

Are these seeds suitable for beginners?

Yes, this pack is incredibly beginner-friendly. Autoflowers are naturally resilient and do not require complex light schedule changes to trigger flowering. Plus, the genetic diversity means you get to learn how different cannabis phenotypes behave in a single run.

Will they all finish flowering at the same time?

Not necessarily. Because it is a mix of different genetics, some might be ready in as little as 8 weeks, while others might take up to 11 weeks. This is actually an advantage, as it spreads out your trimming workload and provides a rolling harvest.

Personal Experience of Pevgrow’s CEO (Alan)

I absolutely love the Mix Pack Auto from Fast Buds. Whenever I have a spare corner in my grow room or a few empty pots on my sunny terrace, I pop a couple of these mystery beans. It brings back the pure joy and surprise of growing. You never quite know if you are going to get a dark purple, berry-scented Indica or a towering, citrusy Sativa until late in the flowering stage.

I highly recommend this pack for growers who suffer from "strain fatigue"—that feeling when you have a massive jar of just one variety and get bored of the flavor halfway through. With this mix, every jar is a different experience. My favorite way to run them is in a sea of green (SOG) style indoors; it looks like a vibrant, multi-colored jungle. Just remember to keep an eye on the heights and use a bit of low-stress training to keep the canopy even. It is hands down the most cost-effective way to experience the elite Cali genetics that Fast Buds is famous for.



  • Is the shipping discreet?

    Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.

  • Do you ship worldwide?

    Yes, we ship to almost every country in the world although you need to know the current legislation in your country to make sure that you do not break any regulations with the germination of the seeds.

    UK: 3-4 days (express)
    USA: 4-5 days (express)
    Australia: 4-5 days (express)
    Japan: 4-5 days (express)
    Canada: 4-5 days (express)
    South Africa: 4-5 days (express)
    New Zealand: 5-7 days (express)
    View all

    The customer must be informed about the laws of their country regarding seeds or other products that may be purchased on our website, the possession of which may constitute a criminal offence in the country of receipt.

    We cannot be made responsible for the wrong use that some people decide to give to the seeds, so please don't act against your national laws.

    Due to problems with customs you can check here for restrictions to certain countries.

  • What payment methods and currencies do you accept?

    We accept the following payment methods: Bank transfer, Cryptocurrencies, cash, credit and debit cards and cash on delivery (Spain, Belgium, France, Italy, Portugal).

    You can change the currency on the top right to know the price of the products in your local currency and of course pay this way.

  • How long does it take to ship my order?

    In 24/48 hours we will ship your order.

  • Are the seeds guaranteed to germinate?

    If you live in a country where the cultivation of cannabis is legal and you decide to plant the seeds, it is good that you know that all the seeds that we commercialize have germination guarantee.

    If you germinate with the method of paper napkins and you have followed all the steps that we indicate here, you will only have to return us the seeds not germinated in their original packaging and when we receive them we will proceed to the change.

    Then we take care of requesting the return to the seed bank, we do not transfer this responsibility and time to our customers.

  • What if I receive a bad or damaged product?

    If you receive a broken product due to transport, you have to notify us within 24 hours for insurance coverage, always contact us as soon as possible and we will fix the problem!

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