C4 Auto (FastBuds) Feminized

C4 Auto: Three Classics, One FastBuds Package

C4 Auto brings together three pillars of cannabis history in a single autoflowering strain. FastBuds built this cross from White Widow, Skunk, and Big Bud, with ruderalis rounding out the four-way lineage. White Widow contributes the resin density and potency the name has always stood for. Skunk adds structure and punch. Big Bud is where the yield ceiling comes from. Ruderalis delivers the auto speed that ties it all together. The result is a balanced hybrid build with 16% THC and 1.1% CBD, a cannabinoid profile that gives the effects more dimension than a single-number read suggests.

Compact Footprint, Serious Numbers

Eight weeks from seed to harvest is the headline. That speed makes C4 Auto a strong fit for short-season outdoor growers and anyone running multiple indoor cycles a year. Indoor plants stay between 90-120cm, manageable in most tents without any aggressive canopy work. LST is optional at this height but the plant responds well to it if you want to push the indoor yield. That yield range sits at 450-600g/m², which is a genuinely high output for a plant this size. Outdoor growers can expect 50-350g per plant depending on conditions. The strain handles short summers without complaint, making it a practical choice for northern or high-altitude grows where the window is tight.

Clear Head, Easy Body

The effects lean cerebral without losing the physical side. There is a clear-headed quality to the high that keeps things engaging rather than sedating, paired with a body ease that makes it evening-friendly without tipping into couch-lock. The 1.1% CBD adds a layer of balance that smooths the overall experience. Sensory-wise, the profile runs earthy and peppery with herbal undertones, in line with what you would expect from this kind of classic-lineage cross. One thing worth noting: C4 Auto is not the strain to reach for if you want knockout potency. At 16% THC it sits in a functional, accessible range, which is part of the appeal for growers who want a reliable daily-driver rather than a ceiling-chaser.

C4 Auto (FastBuds) Feminized data sheet

Brand	Fastbuds
Suitable for	Indoor, Outdoor
Grow difficulty	Easy
Genetics	45% Indica / 55% Sativa
THC	20%
CBD	1%
CBD:THC	1 : 19
Flowering Type	Autoflowering
Sex	Feminized
Flowering Time	9-10 weeks from seed to harvest
Height (Indoor)	100cm
Height (Outdoor)	100cm
Yield (Indoor)	Up to 650 gr/m²
Yield (Outdoor)	Up to 200 gr/plant
Available as	Feminized seeds
Effects	Relaxing, Cerebral