Critical Autoflower

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Critical Autoflower - Nirvana USA

Critical Autoflower

Regular price $59.90
Regular price $59.90 Sale price $59.90
100M+ Nirvana Seeds sown
Loved by growers 4.8/5
At your doorstep in 2-5 days

Critical Autoflower is an extremely low maintenance, easy to grow strain that is a beast producer. Very reliable outdoors due to her high plant resistance factors. Easily one of the biggest producing autos on the market today and a solid performer.

This cultivar is Spain's most popular and productive strain and as her resin profile is prolific, making her a great strain for hash makers and extractors. Well known for her monster harvests, perfume sweet, fruity terpene profile and easy to grow nature.

She performs like no other autoflowering strain when in terms of production indoors as well as outdoors. A must-have for commercial growers and those searching for an easy to grow, low maintenance autoflowering hybrid.

Now you can grow the enormous producer, Critical as an autoflower all year long!

Specifications

Genetics Critical x Ruderalis
Brand Nirvana Seeds
Plant type Indica dominant
CBD Low (0,1% - 01%)
THC Medium (15% - 20%)
Plant height Short
Yield Average (325 - 425 g/m²)
Taste Flowery , Fruity , Sweet
Effects Focusing , Calming , Antiphlogistic
Grow difficulty Easy

THC

LowHigh
20%

Medium (15% - 20%)

This strain is an Indica

Indica strains originate from cooler regions. They are known for their compact growth, calming and body relaxing effects.

Growing experience
You can expect a compact plant that stays relatively short and bushy. She is fast flowering with dense and resinous buds. Ideal for growing indoors or grows with limited space.

Consuming experience
Indica strains in general provide deep and relaxing body effects. Depending on the terpenes, you can expect calming and even sedative effects.

Dominant Terpenes

Pinene

This terpene will give this strain a pine and woody aroma. It’s also responsible for the focusing effects.

More about Pinene

Myrcene

This terpene will give this strain a herbal and tropical aroma. It’s also responsible for sedating and relaxing effects.

More about Myrcene

Humulene

This terpene will give this strain a spice and earthy aroma. It can help with suppressing appetite and inflammation.

More about Humulene

Why autoflower seeds?

Our Autoflowers, automatically switch from the vegetative stage to flowering without any need to adjust your light schedule. This is perfect for a quick turnaround.

No light schedule stress

They flower automatically, so light leaks won’t ruin your crop. Perfect for tents, closets, balconies, and beginner-friendly spaces.

Compact & discreet
Shorter plants with a quick lifecycle, paired with stealthy grows and simpler maintenance.

Beginner-friendly, expert-ready
Easy to grow, yet rewarding for pros who want fast rounds and reliable results.

More about autoflower seeds

For more yield

Try feminized seeds for bigger grow.

Critical Feminized

Critical took the breeding scene by storm when she first appeared. After winning multiple cups and producing epic yields, she quickly became a household favorite in Spain and Europe. One of the easiest hybrids that can be grown, who does not require much maintenance, making her a wise choice for beginner growers.

A medium-sized plant that reacts amazingly well to plant training, thrives in hot climates with an exceptionally high resistance to mold. This hybrid is a heavy feeding strain, so giving large amounts of nutrient solution is no problem.

Critical seeds grow fast, and can take a heavy feed, rewarding even first time growers with jars filled with fruity and frosted nugs. Commercial growers will also find this monster producer a wonderful and solid performing cultivar.

Find out more...

Customers praised this autoflower strain as "easy to grow" and beginner-friendly with fast finishing times (70-94 days). Growers reported "frosty" buds, good yields (30-475g per plant), and "strong, lasting high." Most noted compact, resilient plants that handle stress well. However, some experienced germination issues (50-80% rates), occasional non-autoflowering seeds, and inconsistent phenotypes including hermaphrodites.

  • 5 stars: 96 (69%)
  • 4 stars: 32 (23%)
  • 3 stars: 6 (4%)
  • 2 stars: 6 (4%)
  • 1 star: 0 (0%)
d
debbie (United States)
Great strain for extracts..FROSTY!!!!!!!

First time growing this strain and became an immediate fan. very quick and smooth transition to flower and is a fast finisher. i'll be cutting her down in a handful of hours and should be right around day 70 give or take a day. it can be taken earlier depending on preference however i should note that this was only grown in a 3 gallon pot for genetic selection purposes so could be why it finished so quick.. i prefer to cut MOST strains on the later end of window closer to amber trics unless harvesting for certain extracts and what the order calls for (cheetah piss a handful of days early with milky and also maybe a couple translucent stalks in there for visual effects) otherwise this day 70 harvest is for sure what most would consider a later cut. very short and compact plant might want to thin her out. im already doing just that on the photo criticals i got as well..GREAT NOSE!! I'll be using this strain as a pollen donor to play with over winter she is looking like a lot of fun to wash and press with all her sugars covering the buds..handles strong winds with no problems at all

I
Ian (United States)
Great

Simply the best

B
BG (Germany)
Critical

New foto

B
Borislav (Germany)
Critical

👍

R
Rodney (United States)
Critical auto

I really like this critical auto good size plant and a really good high iv grown this plant quite a few times over the years and have never been disappointed I bought 3 and got 3 free this time other than 2 not germinating everything went good will get these again later this year

G
Georg (Germany)
Outdoor

Nach der Sommersonnenwende direkt in den Topf mit Tomatenerde aus dem Baumsrkt und im September ohne Schimmel weniger als 50 gr. geerntet.

K
Kyle
Critical auto

Easy to grow. Highly recommend to beginners.

D
Don
one of my favs

4 out of five seeds grew. short plant with a great buzz

A
Alex
mediocre buds but lots of them

had better memories about this strain... but that was a different summer...
"buds" ok for going directly into butter or other extracts so i give 3 stars

J
John
pleased

good yield with tight buds

S
Scott
Strong high, reasonable yield

This strain grows well in a hot, humid summer climate. They were quick flowering balanced with lower yields. Outdoor stealth grow in pots resulted in about 30 grams each in 9 growing weeks. They are good to grow while you wait for your fems to mature. Produces a strong, lasting high. I would purchase this strain again.

L
Laurent
Perfect

Croissance et floraison parfaite.

E
Edward
critical autoflower

only 2 of 5 germinated, which was unfortunate, but the 2 plants that grew and matured produced nice long (4-6 ") buds. kept plants below 5 ft. so that it would bush more . cultivated 8 qt. jars of nice plump buds of the 2 plants !

S
Sam
Great plants!

Grew very well here in NZ

C
Cedar
Ya man!

Thank you Nirvana! This is an awesome little plant. Very easy to grow! Compact diamond studded buds with a great aroma. This is my new favorite. You will not be disappointed!
The high can’t be beat! I go slow, but steady, throughout the day enjoying this wonderful product.

D
Daniel
one of my favorites

Great taste omg yield was great also resist stress grown in coco syco 5 gallon pots return was 475 grams loves this strain buying more

T
Tim
Boom

#1 overall category. Yield, taste, effect, ease of growth.
Autoflower power.

M
Maci
Critical autoflower

This is my favorite strain to grow. Always produces big potent buds.

M
MICHAEL
great results

great product easy to grow

J
Joe
Purchased AutoFlower Seeds, But the Seeds were Normal Feminized Seeds

I was looking forward to growing the Critical Autoflowers, but after my other strains of autoflowers, that I grew at the exact same time, were harvested, the Autoflower Criticals were now 4' tall with no signs of preflowers. Today, the Criticals that were supposed to be Autos, are now between 70" and 72" tall with the flowering stage starting about 1-2 weeks ago.

I have been purchasing Nirvana seeds for a very long time. All of their seeds have been top quality. Except the occasional issue with Autoflowering seeds that were mislabeled. This has happened only once before and Nirvana made good on their mistake.

For whatever reason, Nirvana has not responded to the tickets and emails I have sent them over the past two months regarding this problem. After paying $45 for these Critical Autoflower seeds, I at least expected that someone would respond to my issues. I am hoping that Nirvana appreciates my business enough to eventually respond to their mistake.

I have to rate this product poorly. As to how the Critical feminized plants that I now have growing, which were supposed to be Autoflowering seeds, I will review them after harvest in October.

C
Carl
Favorite

I've grown the fem version of this and while it produced more I like auto-flowers better. Both have great taste.

C
Carl
Great taste.

Just like its name it will leave you in critical condition.

L
Luc
Critical outdoors

I put them outdoors in big pots, full sun all day, the harvest is quite impressive, one of the 5 seeds behave strangely, dark green leaf, very little buds (hermaphrodite i think)

R
Robert
auto

Still waiting to put in dirt a friend has something and his look great can't wait til I hav room to put in dirt

J
Jon
Biggest auto I’ve ever grown

Great Strain. Through slight defoliation and LST I was able to end up with 11 ounces of dried flower from this beautiful strain. I haven’t tried it yet as it’s currently curing but I know I’ll be growing many more of this wonderful strain.

J
John
First time with autoflower

Has taken a bit longer seed to harvest than expected. Once the night temps have been in the 60s it's done much better and heads are looking robust. Harvet should be in 2 weeks which will be 110 days after planting.
I give it 4 stars because of what the heads are looking like. I'll do a followup after the smoke test.

K
Karen
Critical, Autoflower

I am thrilled to have grown this awesome bud. Nirvana has always come through and I have never not had a seed pop. This strain lives up to it's hype.

T
Trevor
Excellent strain

I have had issues with higher temperatures before and this strain has done pretty well despite them. It's a great producer and during my last grow grew to almost 4 feet high. Nirvana have some really good genetics which is very important for autos. I've gotten critical a few times now and nearly all of them have sprouted. Been using 5 gal pots with Fox Farm Ocean Blend as a medium with Fox Farm nutrients. Highly recommend this strain; will get it next time it runs on sale.

M
Mark
Predictable, stable a very good choice.

100% germination rate, rapid expansive growth with 900 to 1100 ppm from third week until finish. Grow consist of perlite substrate in hempy buckets. Varied pH from 5.7-5.9 on a daily, temps 75° f. Finishing times as with most breeders about two weeks off. A very stable and predictable strain. A very good choice!

M
Maci
Critical autoflower

So far my favorite, I've grown 9 of this strain. Strong, healthy, good producing, good effects . I absolutely love it.