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BCN Critical XXL Auto Seeds by Seed Stockers – High-Yielding Autoflower with Citrus-Spicy Flavor
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BCN Critical XXL Auto seeds from Seed Stockers deliver massive yields in just 11 weeks. This easy-to-grow autoflower offers a balanced happy-chill effect, intense citrus-spicy aroma, and up to 22% THC. Perfect for beginners and experts alike, it thrives indoors and outdoors with minimal care.
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BCN Critical XXL Auto seeds are your shortcut to a massive, high-quality harvest in just 11 weeks, delivering a balanced happy-chill effect and an intense citrus-spicy aroma that fills the room.
Are you tired of underperforming autoflowers that promise big but deliver small?
Too many growers waste time and space on automatics that barely stretch, produce airy buds, or collapse under their own weight. You follow the guides, but still end up with a handful of weak, flavorless flowers.
What if your first grow could actually impress?
Imagine popping a seed and, less than three months later, harvesting dense, resin-coated buds with a powerful, balanced high. No complicated light schedules, no daily monitoring—just plant, feed, and watch it explode. That’s the frustration of missed potential turning into pure satisfaction.
BCN Critical XXL Auto delivers what most autoflowers only talk about
This isn’t just another automatic strain. Born from legendary Critical genetics and perfected for speed, BCN Critical XXL Auto gives you a vigorous, bushy plant that produces huge, compact yields with minimal effort. With up to 22% THC, a delicious citrus-spicy flavor, and a joyful, relaxing effect, it’s the complete package for any grower.
Myths vs reality: what you need to know about high-yield autos
- Myth: All autoflowers are weak and low-THC. Reality: BCN Critical XXL Auto reaches up to 22% THC and delivers a powerful, balanced effect.
- Myth: Big yields need photoperiods. Reality: This auto produces over 350 g/plant outdoors and more than 550 g/m² indoors.
- Myth: Autoflowers can’t be trained. Reality: Its strong structure supports LST for even better light exposure.
- Myth: Automatics have no flavor. Reality: Expect intense citrus, spicy skunk, and earthy notes with every puff.
- Myth: They’re fragile and prone to mold. Reality: It’s highly resistant to pests and humidity, perfect for beginners.
What BCN Critical XXL Auto really does (and what it doesn’t)
This strain delivers fast, reliable results with minimal input. It grows vigorously, stretches impressively during flowering, and produces dense, resin-drenched buds that are perfect for smoking or extraction. Its balanced sativa-indica effect starts cerebral and evolves into deep physical relaxation—ideal for unwinding after work or enhancing a creative evening.
It won’t turn you into a couch lock zombie, nor will it keep you up all night. It doesn’t require advanced techniques or lab-level precision. What it does do is grow strong, smell amazing, and reward you with quality and quantity—every single time.
Advantages and benefits when used properly
- Harvest in just 11 weeks from seed—perfect for quick, successive grows.
- Produces up to 550 g/m² indoors or 350+ g/plant outdoors with ease.
- Thrives in soil or coco, forgiving of minor nutrient mistakes.
- Delivers a flavorful, aromatic smoke with citrus and spicy skunk notes.
- Resistant to mold and pests, ideal for humid or unpredictable climates.
- Stretches up to 1.10 m (3.61 ft), maximizing vertical space indoors.
- Perfect for balconies or discreet grows—no light cycle stress.
Tips to choose well according to your expectations
Whether you're after flavor, yield, or ease, BCN Critical XXL Auto adapts to your goals. Here’s how to get the most out of it:
- If you want speed, this auto finishes in 11 weeks—no waiting.
- If you want yield, use 18 L pots and a quality soil like Light Mix Peat Free for maximum root development.
- If you want flavor, flush 7–10 days before harvest and cure slowly to enhance terpene expression.
- If you're a beginner, its hardiness and forgiving nature make it your best first strain.
- If you love the Critical lineage, this is the most productive auto version available.
Technical specifications
- Breeder / Brand: Seed Stockers
- Type: Autoflowering
- Dominance: Slightly indica-dominant hybrid (60% indica)
- Genetics: (Kritikal Bilbo × Critical +) × Auto Critical Mass
- Life cycle: 11 weeks (75 days from germination to harvest)
- Indoor yield: Up to 550 g/m² (+1.8 oz/ft²)
- Outdoor yield: 350–400 g/plant (12.35–14.11 oz/plant)
- Indoor height: 80–110 cm (2.62–3.61 ft)
- Outdoor height: 90–120 cm (2.95–3.94 ft)
- Difficulty: Low – ideal for beginners
- Structure: Bushy, short internodes, strong branches
- Stretch: Significant during early flowering
- Climate: Mediterranean, temperate, or warm indoor
- Resistance: High resistance to mold, pests, and stress
- Training: Suitable for LST; avoid topping or FIM
- Pot size: 18–27 L final pot recommended
- Light: 18–20 hours daily throughout life cycle
- THC: 14–22%
- CBD: Low (0–1%)
- Aromatic profile: Myrcene, limonene, pinene
- Flavor: Citrus, spicy, skunky, earthy
- Effect: Balanced – cerebral onset, relaxing body high
- Smell during grow: High – use a carbon filter like SMC Spidermite Control to manage odor
How to grow BCN Critical XXL Auto seeds
Get the most out of this powerhouse auto with a simple, effective approach tailored to its genetics.
Quick overview
Autoflowering · Seed Stockers · 11-week cycle · beginner-friendly · ideal for indoor tents or outdoor balconies.
Safe start
Germinate seeds quickly and safely to kick off a strong grow.
- Soak seeds in water at 22–25 °C until they crack.
- Use a light, airy medium like Light Mix Peat Free for optimal root growth.
- Transplant once the taproot is 1 cm long.
- Place directly in final 18–27 L pot to avoid stress.
- Keep humidity at 60–70% in early stages.
Directed growth
Support healthy development with proper light and structure.
- Provide 18–20 hours of light daily from start to finish.
- Use LST to spread branches and improve light penetration.
- Water when the top 2–3 cm of soil is dry.
- Maintain pH between 6.0–6.5 (soil) or 5.8–6.2 (coco).
- Feed lightly—this strain doesn’t need heavy nutrients.
Efficient flowering
Maximize yield and resin production during bloom.
- Expect significant stretch in the first two weeks of flowering.
- Reduce humidity to 40–50% to prevent mold.
- Support heavy colas with stakes or a trellis net.
- Use a bloom booster like Voodoo Juice for enhanced resin and density.
- Flush with pure water 7–10 days before harvest.
Harvest and refinement
End with top-quality buds by timing it right.
- Harvest when trichomes are mostly milky with some amber.
- Dry buds slowly at 18–22 °C and 50–60% RH for 7–10 days.
- Cure in glass jars for 2–4 weeks, opening daily to release moisture.
- Store in a cool, dark place to preserve flavor and potency.
- Enjoy a smooth, flavorful smoke with lasting effects.
Frequently Asked Questions
How long does BCN Critical XXL Auto take to grow?
From seed to harvest, it takes approximately 11 weeks (75 days), making it one of the fastest high-yield autoflowers available.
Is this strain good for beginners?
Absolutely. It’s forgiving of mistakes, resistant to pests and mold, and doesn’t require advanced techniques—perfect for first-time growers.
Can I grow BCN Critical XXL Auto outdoors in a cold climate?
It thrives in warm, sunny conditions but can handle mild temperature drops. For colder areas, consider growing in a greenhouse for better control.
Does it smell strongly during flowering?
Yes, it has a powerful skunky-citrus aroma. Use a carbon filter like SMC Spidermite Control to keep your grow discreet.
What’s the best way to increase yield?
Use large pots (18–27 L), apply LST early, ensure strong lighting, and feed with a quality bloom enhancer like Voodoo Juice.
Personal Experience of Pevgrow’s CEO (Alan)
I’ve tested dozens of autoflowers, but BCN Critical XXL Auto stands out every time. I grew it in a small 1.20 x 1.20 m (3.94 x 3.94 ft) tent under a 600W LED, using 20L pots and a simple soil mix. By week 8, the plants were over 1m tall and covered in frost. I used light LST and a basic nutrient schedule—nothing fancy. The smell was intense, so I ran a carbon filter. Harvest came at day 75, and I pulled 520 g/m² of dense, sticky buds. The high is exactly as described: uplifting at first, then deeply relaxing. It’s become my go-to recommendation for anyone starting out or wanting a reliable, high-yield auto. No stress, no surprises—just massive results.
You may also be interested in:
Critical Plus infoCritical Plus Auto info
Critical Widow flowering time
Super autoflower strain
| Type: |  |
Autoflowering Bulk |
| Banks: |  |
Seed Stockers |
| Genetics: |  |
Critical Kritikal Bilbo x Critical+ x Critical Mass x Ruderalis |
| Phenotype: |  |
Sativa-Indica Balance |
| Indoor production: |  |
High |
| Crop cycle since germination: |  |
10 weeks |
| Weather: |  |
Cold climates |
| Effects: |  |
Relaxing Sleep all night |
| THC: |  |
22% |
| Flavor and aroma: |  |
Lemon |
| Symptoms: |  |
Insomnia |
Customer reviews BCN Critical XXL Auto Seeds by Seed Stockers – High-Yielding Autoflower with Citrus-Spicy Flavor
They popped in 1 day and are growing like a weed. They already have a very strong odor, can´t wait to try the final product. Going to be great.
Maybe the best: super cheap, strong, good taste and smell, easy to grow and fast enought: i think you MUST always have few of these seeds at home. It will became one of your favourite. With a normal attention it can give also 60-80 dried grams per plant indoor and it´s awesome. Resistant to mold:.
this super sale cultivar is awesome. Big buds, flavours, smells... everything is so good that you'll ask to pev and seedsatockers how can be possibile to have this price. Strong enought, good to sleep and relax, it hits you strong.
Now, there are always few seeds of BCN critical XXL in my closet. Always. Never stay without after you try it. Suggestion: better to make many little plants instead of a big one.
PROS: flavour and smell, strongness, easy to grow, doesn't require too much nutrients and difficoult to over-fertilize
CONS: it take longer thant thay said to finish flowering, at least 3 weeks more. worth it but if you want something really fast, better to choose something else.
I can only review these based on price as i haven´t popped them yet,but super priced, professionally packaged,took a bit long to arrive (from Spain to UK 1 month approx)but on what ive seen so far,i have great hopes for product.
Would most definitely buy again.
I have no questions...except has anyone else caught on to this dirt floor poor cheap as fuck knock your socks off for a dollar secret weapon weed? This shit is inexpensive. Point blank. I mean like bulk seeds cheap. This is my short little diatribe. My first grow...2 plants. Big Bang auto and bcn critical XXL auto. I was rooting for the big bang because it toted a 900 gram per SQ m title. Plus I had never heard of bcn and the price was so cheap, I figured it wouldn't be shit. Fast forward 9 weeks to where I harvested both a week too early. I don't know if it's because of the early harvest, the incredibly expensive super soil I used ( like $60), the fact that I played with the lighting schedule the whole way, the fact that I low stressed trained topped and super cropped an auto flower, or the fact that everyone says you can't transfer an auto flower...well I did that too. I basically debunked every myth about autoflowers I could with this one, my first. But, maybe I just stumbled on to a hidden gem...because I shit you not I had a half dozen people tell me it was the best shit they ever smoked! And these weren't 22 year olds...these were full grown adults. This was my first grow, you shouldn't be getting rave reviews your first time right. It was smooth and citrusy. Psychedelic and prompt with staying power. And by the way you know it outperformed the big bang, with all of its accolades and loftier price tag. Couple grows later, I'm back in the ring with bcn critical XXL. I want to see if the magic can happen again with a whole grow dedicated. 9 autos, 96 square feet and an astronomical par value too high for you to believe ( that's the secret)... So, I will check back in and let you know how things are growing...but as far as BCN Critical XXL as a potential purchase...I say go for it...it's cheap, it's killer, and God Dam it felt good to get compliments like that.
> Can i cut thèse bigger leaves wich are covering the reste of the plante below. The plant is 2 months old and still yet no flowers . Its an autoflower and the sativa im growing alongside already is budding. What can i do ?
Answer:
hello regarding the leaves if you can cut them and regarding the flowering let her bloom herself as she is autoflowering thank you
hello regarding the leaves if you can cut them and regarding the flowering let her bloom herself as she is autoflowering thank you
Très très bien
Oui mais pour débutants
Ordered the seeds before very good great yield, ** buds I tend to grow to plants just to make butter with and they make great couch cookies
100% germination, fast growers! I dropped them in a small container and filled with filtered water. They dropped after 12 hours but I kept them in for about 24. I placed them in a moist paper towel and into a small bowl with a ziplock bag over it. Placed in a dark and warm closet for almost 48 hours and had 3/4 inch tap roots. They have been growing well in Black Magic soil that I purchased from Home Depot. They are indoor right now under a small grow light for germination. Once they get a little bigger they go in the greenhouse! I am very satisfied with my purchase and will be buying more again!
Plant needs about 11-12 weeks to finish. Check Trichomes before harvesting to ensure theyre milky/amber. You can gain about 4oz per plant with the right lighting. I used 900 watt LED and harvested 4oz per plant. She loves to drink so watch out for a proper watering and feeding scheduling. I grew my ladies in 3 Gallon smart pots. The buds are pretty easy to manicure so you can get them hung and dried. It took around a week to dry and now Im currently in curing stage and after about three day in the mason jars you start to smell the lemon scent terps. The smoke is so lovely... Its like a lemon lift and then youre relaxed and chill
Plant needs about 11-12 weeks to finish. Check Trichomes before harvesting to ensure they're milky/amber. You can gain about 4oz per plant with the right lighting. I used 900 watt LED and harvested 4oz per plant. She loves to drink so watch out for a proper watering and feeding scheduling. I grew my ladies in 3 Gallon smart pots. The buds are pretty easy to manicure so you can get them hung and dried. It took around a week to dry and now I'm currently in curing stage and after about three day in the mason jars you start to smell the lemon scent terps. The smoke is so lovely... It's like a lemon lift and then you're relaxed and chill.
TRES BON PRODUIT J RECOMMANDE UNE BELLE STRUCTURE RAMIIEE AVEC DES TETES RESINEUSE LA CA ENVOI DU LOURD COMPARER A CERTAINE GRAINE BIEN PLUS CHER J LAI MISE EN PLEINE TERRE L EFFET ES DEVASTATEUR LOLL JE RECOMMANDERAI CETTE SOUCHE A MES AMIS ET MON ENTOURAGE CES UNE DES GRAINES LES MEILLEUR ET PAS RES CHERE POUR UNE RECOLTE ABONDANTE ET TRES RESISTANTE A LA MOISISSURE
Well done,, great seeds
Great strain! Only thing is it puts off vary strong odor! Carbon filter is highly recommended for this strain!
Very satisfied, I would recommend
The price was good and the seeds are even better than I thought no problems germinating well worth it to me I’m new to growing but so fare so good no problems at all I would recommend buying seeds from Pevgrow to any one and costumer service was excellent on replaying to my messages a I’ll buy more next month thanks pevgrow
Love the seeds no problems at all with them would be buying from again thanks
Recently bought a 5 pack of BCN Critical XXL Autoflower and so far 3 of 3 have popped. I did have little trouble with one of them not wanting to germinate. I went ahead and put her in soil and she popped 2 days later. So far I love what I'm seeing from these girls. Tight stacking and a lovely aroma already present. I'm definitely happy with what I got for like $8. Best deals on the web. Haven't seen anyone come close to matching their prices.
ca a germé tres rapidement
tres bon packaging
Venez voir mon blog growdiaries
https://growdiaries.com/grower/weedawet vous pourrez apprécier aussi les magnifiques génétiques de pevseeds bank Blueberry auto est juste somptueuse
Great product I would buy again!
all 5 of 5 germinated...will see in long run
The product is very good the plants are on there way getting bigger and will be looking forward to the harvest.
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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.
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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)
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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.
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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.
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How long does it take to ship my order?
In 24/48 hours we will ship your order.
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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.
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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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Je recommande ce produit fortement 🤤🤤