Critical Auto
indicaAlso known as: Critical Automatic, Auto Critical, Critical Mass Auto
Critical Auto is a high-yielding indica-dominant autoflower descended from the legendary Critical Mass, finishing in 65-75 days with exceptional bud density and deeply relaxing effects. Its forgiving nature and impressive output make it one of the most popular autoflowering strains for all skill levels.
Overview
Critical Auto is an autoflowering version of the classic Critical Mass strain, a legendary indica-dominant variety renowned for producing some of the heaviest yields in cannabis cultivation history. By incorporating ruderalis genetics, breeders have created an automatic version that retains the massive bud production and relaxing effects of its photoperiod parent while adding the convenience of a rapid, light-independent growth cycle. Critical Auto is widely regarded as one of the best high-yield autoflowering strains available, making it an exceptional choice for commercial growers and home cultivators alike who prioritize output alongside quality. The strain completes its lifecycle in approximately 65 to 75 days from germination, producing dense, compact colas that are remarkably heavy for an autoflowering variety. Indoor yields regularly reach 400 to 500 grams per square meter, while outdoor plants can yield up to 150 grams per plant in favorable conditions. The plant structure is characteristically indica—short, sturdy, and bushy—with broad fan leaves and thick branches capable of supporting the substantial bud weight. Critical Auto thrives in both beginner and advanced growing environments, tolerating minor nutrient imbalances and environmental fluctuations better than many comparable strains. This resilience makes it an ideal gateway strain for first-time autoflower cultivators. The terpene profile leans heavily toward earthy, woody, and sweet notes, driven primarily by myrcene and caryophyllene. The resulting flavor is rich and skunky with subtle sweet undertones, which pairs perfectly with the deeply relaxing, body-heavy effects. The high is typically calming and sedative, making Critical Auto a popular evening strain for users managing insomnia, chronic pain, muscle tension, and anxiety. At 14 to 20 percent THC, it strikes a manageable potency level that appeals to both seasoned consumers and those with lower tolerance. Critical Auto represents an ideal blend of productivity, ease of cultivation, and therapeutic efficacy.
Effects
Positive Effects
Medical Benefits
Side Effects
Terpenes
Genetics
mother
Critical Mass
father
Ruderalis
Growing Info
Difficulty
easyFlowering Time
70 days
Yield (Indoor)
400-500g/m²
Yield (Outdoor)
100-150g/plant
Height (Indoor)
50-80cm
Height (Outdoor)
60-100cm
Flavors
Aromas
Colors