secure connectionCritical Auto is one of those strains that just hits right. Fast to grow, full of sweet citrusy aromas, and a relaxing buzz that washes over you like a warm evening breeze.
Critical Auto is one of those strains that just hits right. Fast to grow, full of sweet citrusy aromas, and a relaxing buzz that washes over you like a warm evening breeze.
For growers chasing reliability without the fuss, Critical Auto is the kind of strain that shows up, gets the job done, and still finds time to impress. This one’s all about balance: solid potency, rich flavour, and a refreshingly no-drama grow cycle. Whether it’s your first autoflower run or your hundredth, Critical Auto brings that classic old-school punch with a modern autoflower twist. Expect sticky buds, easy yields, and the sort of cheerful buzz that makes even the most mundane tasks suddenly seem... way more interesting.
After bigger yields and a little more control over training and timing? Our Critical photoperiod version gives you room to dial everything in.
Critical Auto is built on some serious backbone. It’s the lovechild of Big Bud and Skunk #1, with a bit of Ruderalis magic folded in to kickstart the autoflowering. That lineage isn’t just for show. Big Bud’s yield potential meets the fast-finishing, stanky charm of Skunk, and it all comes wrapped up in a package that flowers automatically, without any need to flip light schedules or mark the calendar. If you’ve ever wondered what would happen if old-school legends got a 21st-century upgrade, this is it.
This one hits like a well-rolled joint on a lazy afternoon. You’ll feel it start behind the eyes. A gentle euphoria that smooths out stress without stealing your motivation. It’s calming but still creative, mellow without knocking you flat. You might catch yourself smiling more than usual. The high leans toward chill and content, but throw on a comedy or dig into the fridge and it quickly turns giggly and munchie-prone. flavour-wise, expect a sweet and fruity start with citrus and lemony notes layered over a subtle woody backbone. Not overpowering, just clean and tasty.
With THC levels landing at around 20%, Critical Auto has enough muscle to get the job done without tipping over into "uh-oh" territory. It’s not designed to flatten you unless you let it. CBD sits at 0.5%, which isn’t massive, but helps round out the high and keep things feeling smooth rather than spacey.
Beta Pinene and Alpha Pinene give this strain its crisp, piney top notes and a fresh clarity that shows up in the high. Limonene brings the citrus: bright, sharp, and energizing. Linalool and Beta Caryophyllene add a slightly herbal, floral warmth. Together, they create a terp profile that smells as good as it feels and hits just as nicely in a vape as it does in a pipe.
Critical Auto is the type of plant that forgives and forgets. Great for beginners but still rewarding for experienced growers who want a quick, solid run. It’s compact, tough, and not particularly fussy about feeding schedules. This one’s happy to mind its own business and get on with flowering, whether you’re keeping it simple in soil or dialing things in with hydro.
Indoors, Critical Auto stays short and manageable. That’s great news for small spaces or stealthy setups. Expect heights around 55 cm to 65 cm. Outdoors, it’s equally cooperative, handling cooler climates like a champ. Even in areas where summers are short or unpredictable, it holds its own. Heights typically reach 70 cm to 110 cm in open air. It’s a good bet for balcony growers or those experimenting with greenhouses. Just give it decent airflow and a little love, and it’ll do the rest.
Expect flowers to show up around week 3 or 4, with harvest-ready buds around the 8 to 9 week mark. Indoors, yields usually land between 400 grams per m2 and 450 grams per m2. Outdoors, you can expect between 70 grams per plant and 200 grams per plant, depending on conditions. Not the biggest hauler out there, but fast, consistent, and surprisingly generous for a compact plant.
Fast, compact, and stacked with character, Critical Auto is one of those rare strains that nails the basics and still finds a way to surprise you. Whether you're after a hassle-free grow, a balanced daytime smoke, or just something with a little nostalgic skunk charm, this one earns its place in any lineup. Buy your Critical Auto seeds today from WeedSeedsExpress and grow with confidence. We’ve got you covered with fresh stock, stealthy shipping, and bonus seeds that keep the good times rolling.
Click here for the full strain description.
| Lineage | Big Bud X Skunk #1 X Ruderalis |
| Flowering Type | autoflower |
| Gender | feminized |
| Genotype | Indica dominant |
| Ratio | 30 % Sativa / 50 % Indica / 20 % Ruderalis |
| Grower Profile | Beginner |
| THC | Up to 20.00% |
| CBD | Up to 0.50% |
| Yield Indoor | Up to 450 gr./m2 |
| Yield Outdoor | Up to 200 gr./plant |
| Height Indoor | Up to 65 cm |
| Height Outdoor | Up to 110 cm |
| Climate | Temperate, Mediterranean, Polar |
| Flowering Time | 56 to 63 days |
| Flavors | Sweet, Fruity, Lemon, Woody |
| Terpines | Beta Pinene, Alpha Pinene, Beta Caryophyllene, Linalool, Limonene |
| Effects | Euphoric, Relaxed, Calming, Creative, Giggly, Hungry, Sleepy, Uplifting |
I germinated 3 seeds (Critical) and am just finishing harvesting them. From 3 plants I estimate I have about 6 ozs!! It was still a little dicey with the humid weather outside, but I am pleased.
Shipment came faster than expected, planted 12 seed all germinated within a 3 days, quite pleased with strain. Well done guys,
1 found this usefulFirst 2 orders never showed ! Mainly due to COVID most likely. The guys reshipped using a different method and even though it would have cost them money they still were true to their word and I received my seeds. Well done to these guys I can’t praise them enough your customer service is outstanding!! 10 out of 10
Excellent strain, excellent yield, excellent buds, excellent smell, excellent taste, fast flowering time. My favourite autoflower strain so far. And yes it was 6/6 all nice and smooth. Little maintenance, easy to grow. I recommend this strain to everyone! Big thumbs up WSE!
Couldn't be happier with my purchase. Was a bit worried as I had never purchased seeds online, but delivery came in under a week, no problems whatsoever. I'm a beginner gardener, however you'd think I'd done this before with the way these girls are going. Germinated within 2 days and super healthy 4 week old plants in! Thanks guys, couldn't recommend you more.
What does Critical Auto taste and smell like?
Sweet and skunky with citrus notes and earthy undertones; a dense, pungent aroma.
What are the effects of Critical Auto?
Fast-acting, relaxing body effect with a happy, calming high; great for unwinding or easing stress.
How long does Critical Auto take from seed to harvest?
Typically 10–11 weeks from seed to harvest under good conditions.
What yield can Critical Auto produce?
High-yielding for an autoflower: indoors around 450 grams per m2 with experienced care; outdoors about 150 grams per plant in sunny climates.
How tall does Critical Auto grow?
Compact to medium size, generally 60 cm–120 cm depending on pot size and environment.
Is Critical Auto easy to grow?
Yes. It’s beginner-friendly, robust, and forgiving, with no need to change photoperiods.
What are the THC and CBD levels of Critical Auto?
THC is typically medium to high (around 18–20%), while CBD is low.
Is Critical Auto suitable for indoor and outdoor growing?
Yes. It performs well indoors and outdoors, thriving in mild, relatively dry conditions with good airflow. The aroma is strong, so carbon filtration is recommended indoors.
Are Critical Auto seeds feminised and autoflowering?
Yes. These are feminised autoflowering seeds that produce female plants under normal conditions and bloom automatically.
Ordering Information
We are one of the few seed banks that still ship to New Zealand, and we have many happy Kiwi customers.
Orders to NZ typically take between 10 & 26 business days.
You can find further details about our ordering conditions related to shipping, payment, and guarantees below.
Our goal is to give you the best experience possible! We ship your order quickly, offer free worldwide shipping, use discreet packaging, and guarantee delivery on all tracked orders.
Free shipping
Delivery without tracking is always free of charge. Free delivery with tracking for orders over 130 NZD
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Your privacy matters. Our shipments are super discreet, with no mention of cannabis or seeds anywhere.
Delivery time
You can expect your order within 10 to 26 business days.
Free replacement
In rare cases where your seeds get damaged or lost during shipping, we’ll replace them for free!
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Our seeds have an average germination rate of 96%. To make sure you have a 100% germination rate, we add free seeds with every standard seedpack (Not applicable to 3-packs or BOGO Deals). In case of germination issues, feel free to contact us any time so we can work towards a solution.
Our delivery guarantee applies for all tracked shipments, which are available for almost all countries we deliver to. You can see if we offer tracked shipments to your country on our shipping and delivery page.
While our delivery guarantee is available for tracked shipments only, we ensure to initiate an inquiry for any shipment that fails to reach its destination. We value your input as a customer and will collaborate with you to discuss the remaining alternatives, aiming to reach an agreement on the most favorable resolution.
