Critical Jack Feminized Seeds

$9.38 per seed

Buy the best Critical Jack feminized marijuana seeds for sale in America.

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Critical Jack Feminized Cannabis Seeds For Sale USA

Are you on the hunt for the top spot to purchase Critical Jack feminized cannabis seeds online in the USA? You’ve found it! Our extensive collection of top-notch, premium marijuana seeds will cater to even the most discerning of growers. We offer unbeatable prices on our Critical Jack feminized seeds, along with incredible discounts and specials that are simply too good to pass up.

Critical Jack Key Points

• Sativa-dominant hybrid strain with high THC levels

• Cross between Critical Plus and Jack Herer

• Lemon-pine flavor and aroma

• Fast-growing and easy to cultivate

• Great for daytime use with uplifting effects

Domestic US Shipping

We offer domestic shipping to all fifty states, with discreet packaging and free shipping on orders over $99. Our domestic shipping ensures that your Critical Jack feminized seeds arrive safely and quickly, without any hassle or delays.

Benefits of Feminized Seeds

Feminized seeds ensure that all your plants will grow into female plants, which means you won’t have to worry about male plants ruining your crop. This guarantees a reliable yield and saves you time and effort in the long run.

These are Photoperiod Seeds

Critical Jack feminized marijuana seeds are photoperiod seeds, which means they require a specific light cycle to grow. Indoor growers need to maintain a 12/12 light cycle for flowering, while outdoor growers need to plant them during the spring or summer months for seasonal growth.

The Genetics of Critical Jack

Critical Jack is a cross between two legendary strains: Critical Plus and Jack Herer. This combination creates a sativa-dominant hybrid with massive buds, a delightful flavor profile, and high THC levels.

How to Germinate Critical Jack Seeds

Germinating Critical Jack seeds is an easy process. Simply dampen a paper towel, place the seeds on it, and cover them with another damp paper towel. Keep the towels moist and in a dark, warm place, and within a few days, you’ll see the seeds sprout.

Flowering time and Yield of Critical Jack

Indoor growers can expect a flowering time of 8-9 weeks, with a yield of up to 21 ounces per square meter. Outdoor growers can harvest their plants in late September to late October, with a yield of up to 42 ounces per plant.

Critical Jack Grow Tips

• Use low-stress training techniques to contain the plant’s height.

• Top your plants early in bloom to prevent them from stretching too much.

• Consider using the Screen of Green (ScrOG) method to maximize space and yield.

• Prune regularly and ensure proper air circulation for healthy plant growth.

Appearance of Critical Jack Buds

The buds of Critical Jack are massive, with a conical shape and bright orange pistils. They’re covered in sticky resin and have a light green color.

Smell and Taste of Critical Jack Weed

Critical Jack has a unique flavor profile of tangy lemon, fresh pine, and creamy zestiness. The terpenes responsible for these flavors include alpha pinene, beta pinene, beta-caryophyllene, beta myrcene, and limonene.

Effects of Critical Jack Cannabis

The sativa-dominance of Critical Jack produces an instant uplifting effect that boosts your mood, energy, and focus. It’s great for daytime use or wake-and-bake sessions. It can also help alleviate stress, anxiety, depression, fatigue, and pain.

Buy Critical Jack Marijuana Seeds in America

Order now and receive premium Critical Jack feminized cannabis seeds that guarantee high yields, great flavor, and amazing effects. Don’t miss our limited-time discounts and deals on Critical Jack feminized seeds for sale online in the USA!


CBD Content


CBD Range

Very low

Climate Zones

Cool, Cold, Sunny, Mediterranean, Temperate, Continental



Dominant Terpenes



Calming, Energetic, Focused, Relaxed, Uplifted


Flowery, Lemon, Pepper, Pine, Spicy, Sweet

Flowering Time

8–10 weeks

Flowering Type



Critical Plus x Jack Herer


Greenhouse, Indoor, Outdoor

Harvest Month


Indica / Sativa

Mostly Sativa

Indoor Max Yield

21 oz/m2

Indoor Plant Height

46 in.

Indoor Plant Height Range

Very Tall

Indoor Yield Range



Focus, Relaxed, Uplift

Outdoor Max Yield

42 oz/plant

Outdoor Plant Height

46 in.

Outdoor Plant Height Range

Very tall

Outdoor Yield Range





Anxiety, Arthritis, Depression, Fatigue, Migranes, Pain, Stress

THC Content


THC Range