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The feminized cannabis strain Green Crack from Fast Buds Seeds is the autoflowering version of the famous California variety, a jewel of the dispensaries on the West Coast of the USA. An easy-to-grow, productive, and potent variety, with the tropical fruity flavor of the original strain, ideal for both inexperienced and experienced growers who want a quick and quality harvest.

Seeds per pack

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Type and genetics

Feminized autoflowering Green Crack seeds from Fast Buds Seeds are the result of crossing Green Crack original x Canadian Ruderalis.

The original Green Crack variety contains Afghan genetics, Skunk#1 genetics, and Super Sativa Seed Club genetics from 1989. Fast Buds Seeds crossed it with their Canadian Ruderalis to obtain a plant with the characteristics of the original Green Crack, but in an automatic version, making it an easy-to-grow plant, fast, and with the possibility of multiple outdoor harvests per year.


Green Crack Auto is a strain that develops plants that do not stretch too much and develop a thick and dense morphology, with abundant branching. The side branches grow surrounding the central bud and form a structure reminiscent of a Christmas tree.

Aroma and flavor

The aromatic profile of this variety is one of its most outstanding attributes: a combination of hints reminiscent of a mango infusion with spicy, fruity, floral, and fresh notes.


The psychoactivity of Green Crack Auto produces an energetic, creative, and vital effect. Due to its THC levels, which can reach up to 20%, it is a potent strain that is ideal for daytime consumption and promotes focus on creative tasks, social activities, or enjoying a walk in nature.


Green Crack Auto is a good producer of aromatic buds that in indoor cultivation can produce 350 to 550g per square meter, while in outdoor cultivation it will offer an average of 50 to 200g per plant.


This autoflowering strain is the fast version of the legendary Green Crack, therefore, regardless of the number of hours of light it receives, this variety completes its life cycle (from germination to harvest), in just 9-10 weeks.

The growing season is from April to October, but in regions with temperatures above 10ºC, it can be grown all year round.

Sativa/Indica percentage

Autoflowering hybrid with Indica dominance, contains Ruderalis.


  • THC: 20%


1st prize in the auto category of the 2nd Litoral de los Poetas Cannabis Cup

La Huerta's opinion

Green Crack Auto is the fast version that lovers of this American variety can enjoy easily and without complications. Ideal for growers with limited space or for those living in cold regions with short summers who still want to enjoy a five-star flavor.

Data sheet

Types of seeds
Autoflowering seeds
Indica sativa percentage
More indica (relaxing)
Flowering time
Fast Flowering (45-55 days)
Strong effect
Mango flavour
Spiced flavour
Sweet/fruity flavour
Kush strain
Skunk - Critical strain
Other characteristics
Easy to grow
Ideal for extracts

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