green crack autoflower seeds

Green Crack Auto feminized seeds

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With 20% THC and a name like that, it’s clear that Green Crack Auto is all about the mental and physical stimulation – focus, clarity, motivation, and tons of creative ideas. This strain is perfect for when you want to get things done and then just chill, after the initial Sativa energy is replaced by a deep, happy relaxation. This is the best strain to begin your daily 4:20 smoking session, or to get that final surge of energy to finish work before commuting back home.

    Fast Buds Feminized Autoflowering Outdoor Indoor Increased charge of energy Green Crack x Skunk #1 x Ruderalis 60 – 90 cm 500 – 650 g/m² indoors 70 – 300 g/plant outdoors 56 days Sativa dominant 20 % 0.7 %
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Green Crack Auto Strain Info

Green Crack Auto from FastBuds is yet another feminized autoflowering version of a legendary and classic American cannabis strain. FastBuds breeders really hit the jackpot with this easy-to-grow weed that has killer potency and brings in oversized yields.


This famous American variety, Green Crack Auto, carries the legacy of Skunk #1 and a choice phenotype of an Afghani Indica. To make it flower automatically, FastBuds have crossed this legend with their best Ruderalis genetics. However, the resulting auto is the same as its photoperiod parent, leaning hugely to the Sativa side of the spectrum.


The effects are what we usually associate with Sativa-dominant strains: energetic and uplifting, leaving you happy, focused, clear-headed, and creative for 1.5-2 hours. After that, be sure to find a place to park your butt, because this is when the Indica side with its euphoric relaxation comes into play.

THC Levels

This strain is definitely more for experienced users, because the crazy percentage of THC (20%) will make the high a rollercoaster ride for a beginner or when you accidentally overindulge. Green Crack Auto is a highly potent bud with psychedelic potential, although its CBD content, testing at 0.7%, ensures that the effects don’t cause paranoia.

Smell And Taste

The aromas and flavors are sweet and citrusy with earthy undertones. The presence of myrcene, pinene, and probably other terpenes also makes some Green Crack Auto phenos redolent of mangos.


This is another aspect where this strain shines. Though easy to grow, these plants routinely produce XXL harvests of up to 650g/m² (2.1oz/ft2) indoors, while outdoors, yields of 300g (10.6oz) per plant are quite possible.

Flowering Time

Green Crack Auto is among the faster-flowering varieties in FastBuds’ collection, usually finishing in an incredible 8 weeks from seed.

Grow Tips

A very rapid grower, Green Crack Auto stays quite short (60-90cm or 2’4”-2’11”). Due to its Sativa dominance, slightly warmer and more humid environments will yield the best results. Although it can handle most environmental factors, because of its Ruderalis genes, it’s best grown indoors with HID lightning.

  • Plants respond well to most low-stress training methods as well as defoliation.
  • It’s hungry for fertilizers.
  • The strain is resilient to stress.
  • Because of the potent smell during flowering, carbon filters are required.

Green Crack Auto Seeds

Since they first became available for sale, Green Crack Auto seeds have been a huge hit, as this autoflowering strain produces bountiful harvests in just 2 months from seed.

Green Crack auto feminized cannabis seeds by FastBuds. Short fast-flowering Sativa. Low price, safe and discreet shipping. Free seeds with every order

Green Crack Auto (FastBuds) feminized

The US breeders of FastBuds managed to create another top-performing autoflowering variety. This strain is an excellent representation of the non-autoflowering version of Green Crack. One can expect rock-hard buds and intense, uplifting effects. The THC content is extremely high for an autoflowering strain: 20%! Shift to overdrive and grow Green Crack in a short life cycle of just 8 weeks!

Green Crack Auto (FastBuds) feminized
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FastBuds – Green Crack Auto: The natural alternative with 20% of THC

The genetics of Green Crack Auto are highly valued in medical marihuana states like California. The skillful breeder of FastBuds managed to gain a solid reputation for their autoflowering strains in the US. They are expanding globally and want to conquer the European market with their autoflowering genetics.

This strain performs on all levels: Especially potency, yields, and flavour stand out from the crowd. Green Crack Auto is a balanced hybrid with some phenotypes leaning more towards their Afghani heritage. Genetically, we’re talking about a highly stable and homogeneous descendant from Skunk No.1, turbocharged with autoflowering genetics.

Growers will be very pleased about the most perfect internodal distance. The typical heights of 60-90cm contribute to making this a strain that is easy to grow. Green Crack Auto is suitable for indoor and outdoor growing and finishes after a short life cycle of only 8 weeks after germination. The yields are exceptional for autoflowering genetics: They usually peak at 500-650g/m², in ideal conditions! One single plant is capable of yielding between 70 and 300g per plant.
Especially outdoor growers will be rewarded with plants being a little bigger, and therefore yielding more grams per plant. High yields are nice to have but bud density, together with a very good bag appeal, make Green Crack Auto something highly valuable. Buds that are fully mature are resin-soaked and covered in trichomes. Oh yes!

FastBuds compares the taste and effect of Green Crack Auto to a mango-flavoured energy drink. Growers and smokers who seek fruity flavors are definitely on the right page with this strain. After hitting some of this bud, one notices a strong citrus-like flavour that reminds of freshly baked citrus tart, mixed with a distinct earthiness, and an exotic mango touch in the background. The whole aromatic package that comes with Green Crack Auto is amazing, especially when it’s being compared to other autoflowering varieties on the market.

Don’t expect a compromise on potency due to ruderalis genetics! THC levels were tested at 20%. Together with a high buds density, there was probably no other option, than to call this strain Green Crack Auto. We won’t be surprised if FastBuds releases a strain with a name like Green Meth in the future. Their goal is to convince growers with fast varieties that are in some way superior to other feminized cannabis strains. It’s more a daytime smoke due to the activating components of the high and one might experience sleep problems when smoking Green Crack Auto too late at night.

There is nothing that speaks against growing this strain, except for maybe the name. It somehow reminds a little bit of a product that can cause great damage to both body and soul. Green Crack Auto is nothing but the natural and less damaging alternative to other substances that provide energizing effects. Try it for yourself and be careful that you don’t clean your entire apartment or house while being on Green Crack Auto, it might feel weird living in an environment that is almost clinically clean.

Green Crack Auto is the natural alternative to other legal and illegal substances. Get blown away by 20% of THC after 8 weeks of autoflowering!