Auto XXL MIX Seeds – Seed Stockers | 12 Fast Autoflowering Strains

The Auto XXL MIX by Seed Stockers is the ultimate all-in-one autoflowering seed pack designed to give you massive yields and top-tier variety in record time.

Let's be real, setting up a grow room with multiple strains often turns into a massive headache when you are short on time. Between researching genetics, matching flowering times, and dealing with complicated light schedules, growing your own stash can feel like a second full-time job that totally kills your chill.

What happens next? You end up rushing the process, picking random seeds that don't vibe together, or worse, postponing your grow entirely. Your stash jars sit empty gathering dust, and when you finally do harvest, the results are totally mid because you couldn't dedicate the hours needed to manage a chaotic, mismatched canopy.

The Auto XXL MIX by Seed Stockers completely eliminates the guesswork and simplifies your entire grow cycle. By combining four elite, fast-finishing autoflowering strains—Apollo Black Cherry, Mack & Crack, Panty Punch, and Terp & Tonic—this pack delivers a streamlined, heavy-yielding trip that is incredibly easy to manage and repeat, even if your schedule is packed.

How the Auto XXL MIX saves you time and effort

When you drop these seeds into your pots, the tedious task of matching photoperiods and calculating light flips completely disappears. Since they are all premium autoflowers, you just set your timer to 18 or 20 hours of light and let them do their thing from seed to harvest. You skip the complex vegetative transitions and go straight into explosive growth.

This mix also simplifies your nutrient routine. Because these four strains share similar life cycles of around 9 to 12 weeks, you can feed them on a unified schedule without mixing five different nutrient batches every time you water. It makes your growing moments incredibly fluid, allowing you to get in, tend to your plants, and get out in minutes.

Simple steps to grow this mix without wasting a minute

Getting this XXL mix going is as straightforward as it gets. Follow this streamlined routine to maximize your yields with minimal daily effort:

1. Prepare your final pots: Fill 18 L pots with a light, airy soil and coco mix so you never have to waste time transplanting.
2. Germinate directly: Plant the seeds straight into their final home to avoid root stress and save precious days of recovery.
3. Set a single light schedule: Plug your lights into a timer set for 18/6 or 20/4 and forget about it until harvest day.
4. Batch your feeding: Mix one balanced nutrient solution for the whole tent, saving you from measuring different doses for each plant.
5. Harvest in waves: Chop the Terp & Tonic at week 9, and let the others fatten up until week 11 or 12, making trimming sessions shorter and less exhausting.

Advantages and benefits for your daily routine

• Because it includes 12 seeds of 4 different strains, you get a complete dispensary-level variety in one purchase, which means less time shopping and more time enjoying different flavors.
• Because they are all autoflowering genetics, you don't have to change light cycles, which means less hassle and zero risk of light-leak stress.
• Because the life cycles are perfectly aligned (9 to 12 weeks), you can run them all in the same tent, which means more comfort and a highly efficient use of your space.
• Because they are bred for XXL yields, you maximize your harvest per square meter, which means you won't have to grow as often to keep your stash full.
• Because they boast extreme THC levels (up to 30%), you need less product to reach your desired effect, which means your harvest lasts much longer.
• Because the genetics are highly resilient, they forgive minor beginner mistakes, which means more peace of mind and a strong desire to repeat the process because it doesn't feel like a chore.

Tips to integrate this mix into your habits without friction

To keep things running smoothly, store your seeds in a cool, dark place like the crisper drawer of your fridge until you are ready to pop them. When you plan your grow, start them all at the same time in a single tent. This way, your watering and feeding days align perfectly, turning plant care into a quick 10-minute daily habit rather than a weekend-consuming chore.

Combine this mix with an automated irrigation system or slow-release organic nutrients. By doing this, everything feels smoother, and you can literally leave town for a few days without worrying about your girls drying out.

Technical specifications

• Breeder: Seed Stockers
• Type: Autoflowering feminized
• Genetics / Cross: Apollo Black Cherry Auto, Mack & Crack Auto, Panty Punch Auto, Terp & Tonic Auto
• Dominance: Mixed (Indica and Sativa dominants)
• Total cycle: 63–84 days approx. from germination to harvest
• Yield Indoor: 450–600 g/m² (1.47–1.96 oz/ft²) approx.
• Yield Outdoor: 70–400 g/plant (2.46–14.10 oz/plant) approx.
• Height Indoor: 0.70–1.20 m (2.29–3.94 ft) approx.
• Height Outdoor: 0.80–1.40 m (2.62–4.59 ft) approx.
• Difficulty: Low
• Ideal climate: Temperate, Mediterranean, indoor environments
• Recommended pot: 18 L final pot
• THC: 20% – 30% approx. (depending on the strain)
• CBD: Low
• Aromatic profile: Cherry, citrus, pine, sweet, and earthy notes
• Effect: Ranging from energetic and euphoric to deeply relaxing and stony

Stages and monitoring of the Auto XXL MIX

Quick overview: This mix brings four premium autoflowers from Seed Stockers for a fast, hassle-free cycle.

• Cycle: 9 to 12 weeks approx.
• Difficulty: Low, perfect for busy growers.
• Ideal space: Indoor tents or sunny balconies.

Safe start: Begin your grow with zero stress by setting up the perfect environment from day one.

• Germinate at 22–25 °C (71–77 °F) with high humidity.
• Plant directly into the final pot to avoid transplant shock.
• To guarantee explosive root growth, use BioBizz Root Juice.

Directed growth: Keep the vegetative stage simple and let the autoflowering genetics do the work.

• Keep lights on 18 to 20 hours a day.
• Water lightly around the edges to encourage roots to stretch.
• Avoid topping; use gentle LST to open up the canopy.

Efficient flowering: Maximize your yields without spending hours tweaking your setup.

• Drop the humidity to 40–50% to prevent mold.
• Ensure good airflow around the developing colas.
• Add Monster Bloom Grotek during peak weeks for massive weight.

Harvest and refinement: Enjoy a staggered harvest that makes trimming sessions quick and easy.

• Chop Terp & Tonic around week 9.
• Let Panty Punch and Mack & Crack push to week 11.
• Flush 7 to 10 days before chopping.
• Dry slowly at 20 °C (68 °F) for maximum flavor.

Frequently Asked Questions

How much time does this mix require daily?

Once your setup is dialed in, you only need about 10 to 15 minutes a day to check watering levels and adjust your lights. It is designed to be a completely low-maintenance grow.

How often is it worth using these seeds?

Because the cycle is so fast (9 to 12 weeks), you can easily run 3 to 4 consecutive cycles a year in the same tent, keeping your stash permanently stocked with four different premium flavors.

What minimum maintenance do these autoflowers need?

They just need a consistent light schedule (18/6 or 20/4), a light feeding routine, and basic defoliation of lower leaves blocking airflow. Avoid high-stress training or heavy pruning.

Personal Experience of Pevgrow’s CEO (Alan)

When I have a crazy schedule but still want a top-tier harvest, the Auto XXL MIX is my go-to cheat code. I usually run all 12 seeds in a 1.20 x 1.20 m (3.94 x 3.94 ft) tent, dropping them straight into 18 L pots. The beauty of this mix is the staggered harvest; I chop the Terp & Tonic first, which gives the Mack & Crack and Panty Punch extra room to swell up during their final two weeks.

The key detail for me is keeping the feeding simple. I use a solid organic base and let the genetics do the heavy lifting. The Panty Punch is an absolute monster for evening relaxation, while the Mack & Crack gives me that creative daytime kick. If you have a busy life but refuse to compromise on quality or variety, this mix is an absolute lifesaver.