Save 16%

Critical Jack

Critical Jack seeds produce a vibrant Sativa-dominant strain. It’s easy to grow and offers high yields. It is perfect for boosting imagination and focus. Critical Jack has a citrusy flavor with thrilling effects that you will enjoy to the fullest.

  • THC levels up to 20%
  • 50% Indica 50% Sativa
  • Creative, Euphoric, Focused
  • Total time from flowering stage to harvest: 55-65 days
  • Growing experience level: Beginners
wrapped giftEarn 255-2032 Reward Points!
wrapped giftEarn 255-2032 Reward Points!
Germination Guarantee Icon Secured
Checkout
Secure Payments Icon Germination
Guarantee*
Refund Icon Hassle-free
Exchanges
GUARANTEED SAFE CHECKOUT
  • Buy Critical Jack With Visa
  • Buy Critical Jack With Mastercard
  • Buy Critical Jack With American Express
  • Buy Critical Jack With Discover
  • Buy Critical Jack With Bitcoin
  • Buy Critical Jack With Apple Pay
  • Buy Critical Jack With Google Pay

Critical Jack seeds are a top choice for growers and cannabis enthusiasts seeking a strain that delivers both creativity and energy. This strain is celebrated for its refreshing citrus flavor and uplifting effects, making it perfect for daytime use. Critical Jack is known for being easy to grow, offering huge yields and a great growing experience. If you are looking to ramp up your cannabis collection, Critical Jack is a must-have for your garden.

Effects and Flavor Profile

This strain’s effects kick in with a surge of energy that sparks your creativity and boosts your mood. It’s a go-to choice for those who enjoy a clear-headed high that also keeps you active without feeling overwhelmed.

The flavor of Critical Jack is delightful, offering earthy and a refreshing blend of citrus. The zesty lemon undertones are mixed with sweetness, creating a smooth and enjoyable smoke. Critical Jack is a favorite for those who love a flavorful cannabis experience.

How to Grow Critical Jack Seeds to Bud

Germination

Germinating Critical Jack seeds is a straightforward process. Begin by placing your seeds between two moist paper towels, and put them in a warm, dark spot. Within a few days, the seeds will crack open revealing tiny taproots. Transfer the seeds with the roots facing down. Keep the soil moist, warm, and well-lit, and the seedlings will soon emerge.

You can find more information by checking our step-by-step germination guide and our germination guarantee.

Where It Grows Best

This strain grows well both indoors and outdoors, but does better in a warm climate. If you’re growing outdoors, make sure they get plenty of sunlight and consistent temperatures. Indoors, Critical Jack benefits from a controlled environment where you can fine-tune factors like light, humidity, and temperature. This strain is a great option for growers in cooler climates or those who need to grow in a greenhouse.

How to Grow Tips and Information

Temp and Humidity

Critical Jack seeds thrive best in warm and stable environments, where the humidity and temperature can be managed. The temperature range for this strain is between 70-80°F (21-27°C) during the day, with a slight drop at night.

When it comes to humidity, Critical Jack likes moderate levels. During the seedling and vegetative stages, the humidity should be around 60-70%. As they transition into the flowering stage, reduce the humidity to around 40-50%. This will help prevent mold and mildew on the buds.

Grow Lights

This strain thrives on energy and requires plenty of light. If you’re growing indoors, using high-quality grow lights is important. LED lights provide the right spectrum of light while being energy-efficient. You should aim for 18-24 hours of light per day during the vegetative stage . When they transition to the flowering stage, reduce the light cycle to 12 hours on and 12 hours off. Consistent, bright light is very important for Critical Jack to produce flavorful buds.

Harvest

Critical Jack seeds typically reach full maturity and are ready for harvest after about 9-10 weeks of flowering. When the trichomes turn from a clear to a milky white or amber color they are ready to harvest. Carefully cut the branches and trim away the larger fan leaves. After trimming, hang the branches upside down in a dark, well-ventilated area to dry for about 7-10 days.

Conclusion

Critical Jack seeds are an excellent choice for growers looking for an easy-to-grow strain that delivers citrus flavors and uplifting effects. Whether you’re growing indoors or outdoors, these seeds will reward you with a generous harvest of high-quality buds. Critical Jack offers a wonderful growing experience, making it a must-have for both beginners and experienced growers alike. You will enjoy the energetic and creative boost that Critical Jack brings, making every effort well worth it.

Characteristics

Strain Genetics

Critical Plus x Jack Herer

Blend

50% Indica, 50% Sativa

Strain Type

Balanced Hybrid

Flowering Time

55-65 days

THC Content

20%

CBD Level

Low

Effects

Creative, Euphoric, Focused

Indoor Yield

Up to 600 g/m2

Outdoor Yield

Up to 1200 g/plant

Best Use

Daytime, Depression, Fatigue

Flavor

Citrus, Pine, Spicy

Flowering Type

Photoperiod

Growing Difficulty

Easy

Where to Grow

Hotter

Seed Type

Feminized Cannabis Seeds

Plant Height

Tall

Yield Levels

High Yield

Reviews

4.5
Based on 33 Reviews
  •  
     
    (21)
  •  
     
    (8)
  •  
     
    (4)
  •  
     
    (0)
  •  
     
    (0)

Only logged in customers who have purchased this product may leave a review.

  1. Verified Purchase

    The plants grew faster than I expected, and they look amazing. I can’t wait to harvest my first crop.

  2. Verified Purchase

    The potency of the buds was just right for me. I felt relaxed and uplifted after consumption, without feeling overwhelmed or sedated.

  3. Verified Purchase

    You won’t regret trying out these fiery, potent seeds! I can’t wait to share this treasure with all my friends and family!

  4. Verified Purchase

    Top notch is Critical Jack. The plants were easy to care for and the high is balanced and long-lasting.

  5. Verified Purchase

    The plants were easy to care for throughout their growth cycle, with minimal maintenance required. This made the whole process enjoyable and stress-free.

  6. Verified Purchase

    I recently tried some feminized seeds and I must say, I’m impressed with how well they performed. The germination process was smooth, and within a few days, I saw strong sprouts pushing through the soil. It felt like a great beginning to my growing journey!

  7. Verified Purchase

    This is the kind of product that makes you fall in love with gardening all over again.

  8. Verified Purchase

    Love has won me over to Critical Jack! Perfectly balanced are the energizing effects and spicy, pine scent. Very highly recommended; grew like a dream.

  9. Verified Purchase

    Critical Jack is my all time favorite! The flavor of citrus and the euphoric high are fantastic. Bloomed quickly and produced a lot.

  10. Verified Purchase

    Beyond my expectations was Critical Jack. Strong plants yielded a tasty and powerful end product. Wonderful for use during the day.

Showing 1-10 of 33 

*To be covered by the Growers Choice Cannabis Seeds 90% Germination Guarantee, you must precisely follow the Germination Method.

World Wide Shipping

We ship and deliver world wide via USPS and various couriers.

Payment Options

We offer a wide range of secure and anonymous online payment options.

Customer Support

We care about you, our customer. Please contact us with any questions or concerns.

Loyalty Program

Find out more about the benefits of being a loyal and regular customer.

×