Jack Black Auto


Black Jack Auto combines high-quality genetics with a quick flowering cycle of 8-10 weeks. With a THC content of 17-19%, this sativa-dominant strain offers euphoric and energizing effects, ideal for any time of day. Enjoy a generous yield and sweet, incense-like flavors!

  • Free Shipping *
  • Discreet Packaging
  • Fast Delivery
  • Guaranteed Quality
  • Freebies on all orders
Guaranteed Safe Checkout

Jack Black Auto is a gem resulting from a masterful cross between the legendary Jack Herer, the powerful Black Domina, and a fast Ruderalis. This combination has led to an autoflowering strain that stands out for its sativa dominance, offering vigorous growth and impressive yield. With a short life cycle and massive production, Black Jack Auto becomes a favorite choice for both novice and experienced growers.

The Jack Black Auto plant features a robust and compact morphology, with medium internodes and long branches extending from a thick central stem. During flowering, its branches fill with dense buds covered in a thick layer of resinous trichomes, giving it an almost celestial appearance, as if dusted with stardust. The deep green leaves are adorned with pistils that range from orange to purple tones, creating an impressive visual spectacle in any garden.

Flavor and Effects

The aroma of Jack Black Auto is a sensory journey that combines sweet and incense notes, reminiscent of the serene and mysterious atmosphere of an ancient cathedral, typical of Haze genetics. Its flavor is equally fascinating, blending sweetness with a spicy touch that leaves a prolonged and pleasant aftertaste on the palate.

When consuming Jack Black Auto, users experience a euphoric and stimulating effect that is ideal for moments of creativity and focus. This cerebral high is accompanied by a subtle but effective body relaxation, offering a perfect balance between energy and tranquility. With a THC content ranging between 17% and 19%, this strain provides a potent experience without being overwhelming. The CBD, though low (around 1.1%), complements the effects of THC, enhancing the sense of well-being.

Yield and Flowering Time

The Jack Black Auto strain is a champion in terms of production, both in indoor and outdoor cultivation. Thanks to its well-balanced genetics and autoflowering nature, this strain allows growers to enjoy quick and generous harvests.

Indoors, Jack Black Auto has a flowering time of 8 to 10 weeks from germination. Under optimal growing conditions, yields can range from 400 to 550 grams per square meter. Its compact size and fast flowering make it perfect for limited spaces, allowing growers to maximize their yield without sacrificing quality.

For those who prefer outdoor cultivation, Jack Black Auto also offers impressive results. Planted at the right time, generally in April for the northern hemisphere, this strain can be ready for harvest by mid-October. Outdoors, it is possible to obtain between 100 to 150 grams per plant, depending on climatic conditions and the amount of sunlight received. The plant reaches a height of up to 110 cm, making it manageable and discreet for garden or terrace cultivation.

How to Grow Jack Black Auto

At Bulk Genetics, we believe that growing Jack Black Auto is a rewarding and accessible experience for growers of all levels. The cultivation difficulty of this strain is moderate, which means that both beginners and more experienced growers can achieve good results with a bit of attention and care.

To achieve the maximum potential of Jack Black Auto, it is crucial to provide it with a suitable climate and growing conditions. This strain thrives in warm and sunny environments, although it also adapts well to indoor cultivation where conditions can be better controlled. Maintaining daytime temperatures between 20-26°C (68-80°F) and slightly lower nighttime temperatures will help our plants grow healthy and productive.

One of the great advantages of Jack Black Auto is its resistance to pests and diseases. Although it is important to maintain good hygiene in the growing area and be attentive to potential problems, this strain has proven to be quite tolerant to the typical adversities of cannabis cultivation.

To maximize yield and quality of our buds, we recommend using quality substrate and maintaining good ventilation in the growing area. Additionally, we can use low-stress training (LST) techniques to optimize the light that all parts of the plant receive, thus improving yield.

What We Like Most

  • Its fast 8-10 week flowering time.
  • High resistance to pests and diseases.
  • Generous production both indoors and outdoors.
  • Its euphoric and stimulating effects.

What We Like Least

  • Requires a warm climate for best performance.
  • May need height control techniques in small indoor spaces.

Frequently Asked Questions

Below you will find the answers to the most frequently asked questions by growers interested in this strain:

Is Jack Black Auto sativa or indica?

Jack Black Auto is a predominantly sativa strain, with a genetic profile leaning towards energizing and stimulating effects. The effects are typically more cerebral, providing a sensation of euphoria and creativity, ideal for daytime use.

What is the THC and CBD content of Jack Black Auto?

Jack Black Auto has a THC content that ranges between 17% and 19%, providing a potent and balanced effect. The CBD content is relatively low, around 1.1%, complementing the THC effects with relaxing and therapeutic properties.

How long does Jack Black Auto take to flower?

Jack Black Auto has a quick flowering cycle, taking between 8 to 10 weeks from germination to harvest. This rapid lifecycle makes it ideal for those seeking multiple harvests per year.

What does Jack Black Auto taste and smell like?

Jack Black Auto’s flavor and aroma are a fascinating combination of incense and sweetness, evoking the serene and mysterious atmosphere of an ancient cathedral. Its terpene profile adds spicy and citrusy touches that enrich the smoking experience.

What is Jack Black Auto’s yield like indoors and outdoors?

Indoors, Jack Black Auto can produce between 400 to 550 grams per square meter, while outdoors, under optimal conditions, it can yield between 40 to 250 grams per plant. This versatility in yield makes it an attractive option for different types of growers.

Additional information




Mostly Sativa


Black Jack x Ruderalis



Recommended crop

Interior and exterior

Full life cycle

Short: less than 75 days



Indoor production

400-450 g/m2

Outdoor production

100-150 g/plant

Outdoor height

0,9-1,2 m

Aromas and flavours

Incense, Spices, Sweet


Creativity, Happiness, Stimulant




Low: < 1%.


There are no reviews yet.

Be the first to review “Jack Black Auto”

Your email address will not be published. Required fields are marked *