Critical Purple Auto Seeds

Critical Purple Auto is an indica-dominant autoflower presented in the Kiwi Seed Bank catalogue. Its reported lineage combines Critical Mass, Big Bud and ruderalis influences, bringing together compact growth, a short flowering phase and earthy-sweet character. It may suit growers seeking a relatively approachable plant with limited vertical stretch.

Genetics & effects

The reported balance is 80% indica and 20% sativa, with estimated THC content of 18–25% and CBD of up to 0.7%. These figures are indicative rather than fixed, as cannabinoid expression can vary with phenotype and growing conditions.

Individual experiences differ, but some people describe the effects as deeply relaxed, calming and increasingly sleepy. A tingling body sensation or stronger appetite may also be noticed. The flavour profile is commonly described as earthy and woody, followed by sweet citrus notes. Those exploring similar compact varieties can browse the autoflower seed collection.

Explore autoflower seeds, high thc seeds, the New Zealand grow guide, and the planting calendar.

Explore autoflower seeds, high thc seeds, the New Zealand grow guide, and the planting calendar.

Growing in New Zealand

As an autoflower, Critical Purple Auto begins flowering according to age rather than a change in daylight hours. Its reported beginner-friendly difficulty may make it more manageable than light-sensitive varieties, although steady care remains important. New Zealand growers should account for highly variable regional weather, from warm northern conditions to cooler southern seasons.

For outdoor cultivation, spring planting generally falls between September and November. Choose the warmest practical part of this window and avoid exposing young plants to late cold snaps. Temperate conditions can be suitable, while hot, dry weather may also work when moisture levels are monitored carefully. Always check and follow the rules that apply in your location.

Indoor

Indoors, plants may reach up to 90 cm. Their compact structure can suit smaller spaces, but good airflow is still valuable around dense flowers. Keep lighting, temperature and humidity stable, and avoid major disruptions because autoflowers have little time to recover during their brief life cycle.

• Flowering time: approximately 7–8 weeks
• Reported indoor yield: up to 400 g/m²
• Reported height: up to 90 cm

Use gentle plant shaping early if needed. Excessive pruning or repeated changes may slow growth, so a simple, consistent setup is often the better fit.

Outdoor

Outdoors, Critical Purple Auto may grow up to 120 cm and is reported to produce up to 200 g per plant. Select a sunny, sheltered position with free-draining soil. Regularly inspect flowers after rain, particularly in humid districts, and maintain spacing and airflow to reduce the risk of mould.

Cooler temperatures may encourage purple colour in some phenotypes, but expression is not assured. Pot size, sunlight, nutrition, weather and plant variation will all influence structure, colour and final output.

Harvest

The stated 7–8 week figure refers to flowering rather than an exact seed-to-harvest schedule. In New Zealand, the broader outdoor harvest season is typically March–May, although autoflowers started in spring may finish earlier depending on sowing date and conditions. Check flower maturity directly rather than relying only on the calendar. Yield, potency, timing and appearance are estimates, not assured outcomes.