Description
Growing Tips for Critical Jack
You would be hard-pressed to find an easier strain to grow than Critical Jack. Critical Jack marijuana plants will thrive indoors and outdoors, but have an easier time growing indoors because of the ability to completely control the climate. If you choose to grow indoors, you will have to replicate a steady environment similar to the climate of the Mediterranean. Critical Jack cannabis seeds grow plants with long, cone-shaped buds and longer leaves that hang below the bud sites. There are a ton of orange and brown pistils covering the buds. If you choose to grow outdoors, you will need to hope for consistent temperature and humidity to grow these plants to completion. Doing so will ensure that you grow healthy buds from the top of the plants to the buds closest to the soil. Having access to a greenhouse is the best way to give these plants the perfect outdoor climate without having to put up with unexpected outdoor variables. These plants grow to a medium to tall height and can reach around 4-10 feet tall. Because the plants reach a maximum indoor and outdoor height of 10 feet, they will require a ton of vertical space to reach their peak. The ideal temperature for these plants is around 68-80 degrees Fahrenheit and slightly cooler at night. Humidity levels should be kept around 40-60% during the vegetative growth stage and the flowering stage, but lowering the humidity every week will help this plant grow. Growing indoors will ensure that the moderate humidity levels and moderate temperatures are constant and maintained every day that the plants are in the growing stages. Topping and low-stress training (LST) methods will help these plants grow correctly. These methods are crucial for controlling the plant’s height and the canopy. The Critical Jack strain requires an 18-20 hour light cycle to reach the vegetative stage of growth. Changing the light cycle to a 12/12 cycle will help to induce the flowering stage of growth.
Yields, Flowering Time, and Harvest
- Flowering Time: Growing indoors, you can expect the Critical Jack strain to harvest after a short flowering period of 55-65 days.
- Yields: While Indoor yields are around 600 grams per square meter, outdoor grows typically produce up to 1200 grams per plant. These yields are some of the biggest numbers you will see with common cannabis grows.
- Harvest: Outdoor growers can plan on harvesting their yields around the middle of October, depending on when the seeds were planted.
Critical Jack: Massive Yields
The Critical Jack cannabis strain terpene profile is directly responsible for how the plant smells and tastes, and the strong effects it has on its users. The most dominant terpene in this strain is caryophyllene, while pinene and terpinolene are the secondary terpenes.
- Caryophyllene: Most Dominant – This spicy and peppery terpene can be found in cinnamon, cloves, black pepper, and some cannabis cultivars.
- Pinene: Secondary Terpene – Found in pine needles and conifer trees, this terpene gives cannabis strains their pine-like flavor and aroma.
- Terpinolene: Floral and Herbaceous – Terpinolene is present in apples, sage, pine trees, and cannabis plants.





















The high CBD strain is perfect for medicinal use. Very effective.
The entire process from seed to harvest was a breeze, thanks to the quality of these seeds. If you’re serious about growing your own top-shelf marijuana, give this strain a shot.
Anytime I order from PSB, I can expect my seeds in no time. Typically, they come in 5 to 7 days. Not only that but I get tracking info so I can keep tabs on them and know exactly when to be ready. I love how I get my seeds without any hassle for such a wonderful and trustworthy purchasing experience.
Critical Kush X Jack Herer is Critical Jack weed. That means a perfect 50/50 indica/sativa split, and a buzz that is as inspiring as it is relaxing.
I am blessed to have a nice garden in Bremerton and the resources with which to grow. I hope to share with my community. Pacific is an excellent resource, and is worth the investment!
If you’re looking for a perfectly balanced high, look no further than Critical Jack Feminized Seeds. This hybrid strain provides a gentle buzz that allows you to stay focused and complete tasks without any downsides. With its soothing and relaxed effects, Critical Jack is perfect for those looking for a peaceful and chilled-out mindset.
Rose to the top of my grow list a long time ago. Purchased online and had it shipped right to my location. I like growing outdoors. It’s a lost art in my opinion. Doesn’t need fancy grow lights or LEDs….just good sunlight and plenty of water. Be sure to prune your plants regularly, these puppies LOVE to sporut tons of branches that distract from growing flower. Prune once weekly and BE AMAZED!
If you’re new to MJ and striving for a classic indica, I recommend Critical Jack. If you read over some of the blogs on this site you’ll gave valuable growing knowledge that everyone can learn and benefit from. I really like buying online, it honestly DOES save money and time, just like everyone says…..
I am an indoor grower…I have a large 10×10 grow tent in my basement with reflective paneling and LED timers. It’s pretty exciting to cultivate and grow but the upfront costs can be relatively high, so keep that in mind friends.
“Pacific gave me lightning-fast shipping times coupled with supremely helpful staff guiding me through each step – in my case Critical Jack produced big buds full of amazing citrus pine aromas that kept me calm & relaxed all day long!
I was amazed at how much yield I got growing these indoors! “
Have this strain growing at about 9 weeks now and ready to harvest it tomorrow. Growing has been easy and required minimal work from me. Really happy with how much weed there seems to be and think I will be harvesting a great amount. Has a nice pine aroma to it and all 3 of the seeds from this plant sprouted perfectly. Pacific gave me quality seeds and a quality price!
Your critical jack seeds have arrived! I am a loyal pacific seeds customer. I have gotten some great results growing weed with them in the past. and I expect this season to be no different. I have a small greenhouse in the back of the yard and it gets a lotta sunlight and heat and moisture which is perfect for growing this weed. It’s a slow grow but worth it for the generous harvest.
Buying 5 seeds is the perfect place to start, it’ll keep you stocked on good weed for months on end.