Critical Jack

Critical Jack

breed by Dinafem

Here you can find all info about Critical Jack from Dinafem. If you are searching for information about Critical Jack from Dinafem, check out our Basic Infos, Gallery, Degustation, Strain Reviews, Shop-Finder and Price Comparison, Lineage / Genealogy, Hybrids / Crossbreeds, User Comments, Threads or Videos for this cannabis variety here at this page and follow the links to get even more information - or list all Critical Jack Strains (±8) to find a different version. If you have any personal experiences with growing or consuming this cannabis variety, please use the upload links to add them to the database!

Basic / Breeders Info

Critical Jack is an indica/sativa variety from and can be cultivated indoors (where the plants will need a flowering time of ±60 days) and outdoors. Dinafems Critical Jack is a THC dominant variety and is/was only available as feminized seeds.

Dinafems Critical Jack Description

Dinafem Critical Jack Critical has become the most well-known and intensely cultivated variety of cannabis in Spain over the past two years. The cultivating revolution caused by the arrival of Skunk to the US, and later to the Netherlands, finally reached Spain 20 years later, but under another name: Critical. The reason is that the Skunk#|1 genetics are dominant in this strain, which is also composed of an Indica variety of Afghani origin, a highly productive strain developed on the west coast of US, and which received the name of Big Bud. Mr Nice Seed Bank commerced with this hybrid, naming it Critical Mass. We could say that they became the “godfathers” of the most popular genetics in the whole country. Thank you, Shantibaba, Neville and Mr. Nice! You’ve done an incredible job! We owe you a few words of recognition because thanks to your hard work (and that of a few others), we have been able to create a truly popular seed. And now, we are going to try again, this time crossing our Critical+ with the most productive sativa in our catalogue of mother plants – the only one capable of flowering in 70 days, producing up to 21% THC, and yielding a dry weight similar to indica or hybrid varieties.
The results are obviously convincing: 60 days of flowering are enough for a harvest of plants that have a really rapid growth. Their aspect is shabby like the sativa, with ample knots and very large light green leaves that hang limply. An explosion of flowers are produced, totally covered with large crystals of resin, in a much shorter period than one would expect with a sativa. Who do we have to thank? The most established seed bank in the world, Sensi Seeds. Our thanks to you, too, for this marvellous plant which is simply impressive. The crossbreed we have produced with these two elite varieties does not have the effect of a pure sativa, but it does have a fairly strong effect, the effect of the Critical+, fairly well-balanced; the modification increases its psychoactive side. It has an intense fruity flavour, but in some samples this varied to a lemony taste of wood. Very productive, even more than Critical+, an authentic flower producing machine, flowers which are very regular in size and homogenously placed on the branches –an heirloom received from its Critical+ side -. There is a clear increase in strength, in exchange for a few more days till flowering, so what more could we ask for? Well yes, there is something else. A noticeable increase in resistance against damp and fungus. Nevertheless, if the weather is too wet or climate conditions unfavourable, outdoor plants can be harvested at the end of September.
The result is guaranteed to surprise.

Flowering: 55 - 65 days
Outdoor harvests: from 30 September to 15 October
THC: Very high (14% - 18%)
CBD: Medium
Production: Very high
Outdoor height: Up to 3 metres
Composition: Sativa/Indica, 50%
Genotype: Critical+ x Jack Herer

Where to buy Critical Jack cannabis seeds?

Critical Jack from Dinafem is available only as feminized seeds. Regular seeds are not available at the moment. In 7 seedbanks, we found 33 offers between USD 9.74 for 1 feminized seed and USD 896.71 for 100 feminized seeds. If you are looking to buy Critical Jack Cannabis Seeds from Dinafem somewhere - have a look to our Critical Jack Price Comparison page with all current offers from all the connected seedbanks and shops - or visit one of the following tested, trustworthy and recommended seed-shops directly to check out their current Critical Jack offers: Alchimia Grow Shop, Herbies Head Shop, Indras Planet GmbH, Seedsman, Original Seeds Store, Cannapot Hanfshop and Oaseeds.

Critical Jack Reviews

We've collected strain info from 8 growers for Critical Jack, check out the reviews about the indoor and outdoor grow here.

General Impression

Strength / Lasting Effect
The weed is strong and long lasting
User Rating
Critical Jack gets 8.65 of 10 possible Points in the average!

Known Phenotypes:

  1. short, compact, slowly blossoming, indica-dominant Phenotype #2
  2. long, stretched, fastly blossoming, sativa-dominant Phenotype #1

More Info:

Please click here to see the full Plant-Profile!

How is Critical Jack growing outdoors?

Harvest Time Outdoor
Middle of October ± 1 Week
in BlArα climates
Yield / Quantity Outdoor
The crop of this strain is great
General Impression Outdoor
Critical Jack is all together extraordinary and quite recommendable

...learn more

How is Critical Jack growing indoors?

Flowering Time Indoor
60 - 69 days (±64 days)
Yield / Quantity Indoor
The crop of this strain is great
General Impression Indoor
Critical Jack is all together extremely good and very recommendable

...learn more

Critical Jack Degustation

The seedfinder users tested Critical Jack and uploaded information about the aroma, taste and effects of Dinafems Critical Jack. Here a short overview, click to the charts or links to get an exact description and find similar cannabis varieties!

Aroma / Smell

~45% Tropical ~25% Lemon ~15% Pepper ~45% Fruity ~25% Citrus ~15% Herbs ~15% Earth ~45% Sweet ~25% Sour ~15% Spicy ~15% Microbiological

The aroma / smell of Critical Jack can be described best as Sweet (or Fruity), fairly Sour (or Citrus) and additionally as a little bit Spicy (or Herbs) and Microbiological (or Earth). more

Taste / Flavour

~37% Tropical ~17% Lemon ~18% Medicine ~8% Diesel ~37% Fruity ~17% Citrus ~6% Acidic ~3% Herbs ~25% Chemical ~13% Earth ~38% Sweet ~23% Sour ~3% Spicy ~25% Bitter ~13% Microbiological

The taste / flavour of Critical Jack was characterized as fairly Sweet (or Fruity) and Bitter (or Chemical), a little bit Sour (very much Citrus and also a bit of Acidic) and Microbiological (or Earth) and additionally as minimal Spicy (or Herbs). more

Effect / Effectiveness

~35% Activating ~19% Uplifting ~9% Thought provoking ~7% Paranoic ~7% Nervous / Fidgety ~12% Energetic ~8% Appetizing ~3% Pain numbing ~70% Head ~30% Body

Critical Jack have basically a strong effect to the Head (Activating; fairly Uplifting and also a little bit Thought provoking and Paranoic) but is also affecting to the Body (fairly Energetic and Appetizing; a little bit Nervous / Fidgety and also minimal Pain numbing). more

Here you see the latest Critical Jack photos, uploaded from our users! Altogether we've collected 15 pictures from Dinafems Critical Jack, check out our Critical Jack gallery to view them all.

Critical Jack Forum Threads

Here you can find external links to Critical Jack related conversations in the different grower forums:

Critical Jack Hybrids & Crossbreeds

Birrie Jack
Critical Jack x Roadrunner
Critical Jack Automatic
Critical Jack x Roadrunner Probably
Critical Jack Autoflowering
Critical Jack x Unknown Ruderalis
Killer Critical Jack
Critical Jack x StarKiller OG

Map of the Critical Jack Descendants

If you are with a big screen and not browsing with your mobile, check out our dynamic family tree map with all known hybrids of Critical Jack! (but this maybe will need some time to load all the data!)

Critical Jack User Comments

Altogether we've collected 11 user comments about Dinafems Critical Jack. Here you find the 5 english user comments, for the ones in the other langues please click here: spanish (1) or german (5).

- 20.10.2017

High resin content. A slightly above average flavour being my only criticism.

The effect is mind blowing.. creative, thought pravoking and and very possitive. I must for people wanting to perform at there very best. Very sociable. This strain fires up the brain and makes you feel euphoric. Great for a meditation.

Dont pull too early as it can be an over stimulate and create anxiety/racy thoughts.

It may not smell or taste like the Cali strains but its better where it counts, in the head.. utter perfection.

Enjoy this comment

- 04.01.2017

This comment is connected to a Critical Jack review!

great yield

i found a few distinct genotypes in the 20 seeds i cracked

no mould

fairly dense

the stretchier narrow leaf variety hits harder and is much more uplifting

excellent variety for both yield and quality

recommended this comment

- 14.05.2015

I liked the plants and the super hard bud shape, although the plants stay small after one pruning and don't drop too much. The finished product is actually not my coffee; The smell and taste is too hybrid, too plastique. The high is somehow nervous, racy and not really centered in the body, just putting on a brain lock after a period of smoking and increases sensory for anxiety. The high didn't comfort me at all, i actually stopped smoking this weed -- to get to the point :-) this comment

- 22.04.2013

This comment is connected to a Critical Jack review!

good strain. very good yield..nice and compact flowers full of trichomes.pleasant smell and good leaf/calyx ratio...all in all good strain !!! this comment

- 09.01.2011

This comment is connected to a Critical Jack review!

Fantastic! Grows quick and strong, very resistant to stress and low humidity. Amazing will be very surprised! this comment

Critical Jack Videos

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  • Timelapse - Critical jack (dinafem) 16.05.20

    Bloom 56 days Critical Jack - Dinafem Sodium 1200 watts Pots 2 liters Coco substrate Timelapse Cannabis marihuana Grow your medicine ;)

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Medical Values

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