
Description
Fast Buds' Original Critical Auto is built on a Cross of Critical and Ruderalis, a pairing that carries forward Critical's reputation for dense, resinous structure and tucks it into a compact, light-cycle-independent package. The aroma leans citrus and earthy, with a sweetness that fills the grow space in the final weeks. Effects sit firmly in high-THC territory, ranging from 16 to 24%, delivering a well-rounded experience that is grounding without being heavy, and engaging without tipping into anxiety.
As a feminised autoflower, Original Critical Auto is a practical choice for cultivators who want reliable, predictable harvests without the complication of photoperiod management. The autoflowering format suits indoor growers running fixed light schedules, as well as outdoor growers in shorter seasons who need a strain that finishes on its own timeline regardless of daylight hours. The Indica-Sativa hybrid structure typically produces a bushy, moderate-height plant that responds well to low-stress training to open the canopy and maximise light penetration. For anyone looking to run an efficient, resin-forward grow, this one earns its place in the rotation.
Original Critical Auto Feminised Seeds
Description:
A high-yielding workhorse from Fast Buds, Original Critical Auto brings together Critical's legendary resin production and citrus-laced density with the reliability of autoflowering genetics, making it a grower's strain through and through.
Best For
Beginner growers seeking a balanced, euphoric high
- Type
- Feminised – Autoflowering
- Genetics
- Critical x Ruderalis
- THC / CBD
- High THC (16-24%) / Low CBD (0-1%)
- Effects
- Relaxing,Uplifting
- Flavour / Aroma
- Citrus,Earthy,Sweet
- Height
- Short
- Yield
- High Yield (450-750gr/plant) / High Yield (450-600gr/m2)
- Auto Harvest
- 9 to 11 weeks
- Difficulty
- Easy
FAQ
All you need to know
about this product
Original Critical Auto brings Critical's legendary resin and citrus-laced yields to an effortless autoflowering format, ready for growers who want serious results without the complexity.
Original Critical Auto is genuinely one of the more forgiving strains available, thanks to its autoflowering genetics and straightforward growth pattern. It doesn't require any light-cycle management, stays compact in height, and is rated easy by Fast Buds, making it a strong starting point for first-time cultivators who still want a rewarding harvest.
Fast Buds puts the per-plant yield at 450 to 750 grams under optimised conditions, with indoor figures ranging from 450 to 600 grams per square metre. For an autoflowering strain, that sits firmly in the high-yield category and reflects the Critical lineage's reputation for dense, heavy-producing structures.
The aroma builds noticeably in the final weeks of flowering, leaning toward citrus and earthy tones with an underlying sweetness that carries through to the cured flower. That flavour profile is a direct inheritance from the Critical side of the genetics and makes the harvest stage particularly satisfying.
THC levels run between 16 and 24%, placing it firmly in high-potency territory, with effects described as relaxing and uplifting in balance. It delivers a grounded, well-rounded experience that eases without being sedating, making it suitable for unwinding without feeling pinned to the couch.
You Might Also Like
Discover more
legendary genetics
Explore handpicked strains with similar flavors and traits — perfect for your next grow.

Stardawg Auto Feminised Seeds
A potent Chemdawg 4 x Tres Dawg cross from Fast Buds, Stardawg Auto delivers the lineage's trademark fuel-laced earthiness alongside a deeply relaxing yet clear-headed experience in a no-fuss autoflowering format.

Apricot Auto Feminised Seeds
A vivid tropical-fruit cultivar from Fast Buds, Apricot Auto delivers very high THC in an autoflowering, feminised package, wrapping potent, relaxing indica effects in a warm stone-fruit aroma that punches well above its compact footprint.

Crystal METH Auto Feminised Seeds
A potent autoflowering hybrid from Fast Buds, Crystal METH Auto brings together a remarkable five-strain lineage, delivering energising, uplifting effects with a complex terpene profile built for efficiency-minded growers.