CBD Critical Mass Auto Seeds

Outback Seed Bank presents CBD Critical Mass Auto, a feminised autoflower selected for a straightforward growing cycle, balanced cannabinoid profile and robust indica-leaning structure. With compact dimensions, broad climate suitability and no need to change light schedules to initiate flowering, it is an approachable option for newer growers as well as experienced cultivators seeking an efficient CBD-rich variety.

Genetics & effects

CBD Critical Mass Auto combines CBD Critical Mass lineage with an autoflowering, Cannabis ruderalis-derived line. Its profile is approximately 80% indica and 20% sativa, while the expected cannabinoid range is 3–5% CBD and 3–5% THC. Individual plants and finished flowers can vary according to environment, growing method and harvest timing.

Experiences are subjective, though this cultivar is often associated with a relaxed and happy feeling accompanied by an uplifting, energetic edge. Its moderate, balanced profile may feel gentler than high-THC varieties for some people, while personal responses can still differ considerably.

Myrcene, limonene and beta-caryophyllene contribute to a layered aromatic profile. Expect citrus and lemon over earthy, woody and spicy notes, followed by sweet, pungent and skunk-like accents. Explore more options in the CBD seed collection.

Explore autoflower seeds, cbd seeds, the Australian grow guide, and the planting calendar.

Explore autoflower seeds, cbd seeds, the Australian grow guide, and the planting calendar.

Growing in Australia

This beginner-friendly cultivar can suit hot, dry districts, temperate regions and cool areas with short summers. Its autoflowering habit allows flexible timing, but seasonal warmth and strong natural light remain valuable. For conventional outdoor growing in Australia, spring planting falls between September and November. Choose a position with good airflow, ample sun and shelter from severe weather.

In humid coastal areas, keep foliage open and avoid persistently wet growing media to reduce mould risk. In hotter inland locations, steady watering and some protection from extreme afternoon heat can help maintain even growth. Browse the autoflower seed collection for similar compact options.

Indoor

Indoors, CBD Critical Mass Auto may reach up to 140 cm. A consistent light cycle, good air exchange and adequate spacing support its naturally full structure. Gentle canopy management can improve light distribution, but heavy training late in the cycle may slow a fast-moving autoflower.

• Flowering phase: approximately 7–8 weeks
• Indoor yield: up to 600 g/m² in favourable conditions
• Difficulty: beginner-friendly

Use a free-draining medium and make gradual adjustments rather than abrupt changes. Actual height, timing and yield depend on the setup, plant care and environment.

Outdoor

Outdoors, plants may grow to up to 120 cm, making them relatively manageable where space is limited. The short flowering phase is useful in cool regions with brief summers, while the sturdy indica influence can suit exposed Australian conditions. Check flowers regularly after rain and maintain airflow around dense growth.

Harvest

Australian outdoor harvests generally fall from March to May for spring-planted crops, although autoflowers started at different times may finish earlier. Reported outdoor yield is up to 120 g per plant under favourable conditions. Use flower maturity rather than the calendar alone to choose harvest timing, then dry slowly in a dark, ventilated space to preserve aroma, flavour and colour.