Purple Haze Auto Seeds

Outback Seed Bank presents Purple Haze Auto, a feminised autoflower combining Purple Haze with an autoflowering Purple lineage. Its compact structure, straightforward schedule and adaptable climate profile make it an approachable choice for newer growers, while its colourful potential and layered aroma offer plenty of interest for experienced hands.

Genetics & effects

This variety is described as 65% sativa and 35% indica. Mature flowers may show purple colour alongside berry, sweet, tropical and fruity notes, grounded by earthy spice. Myrcene, caryophyllene and limonene are the listed dominant terpenes. The reported cannabinoid profile is around 17% THC and 0.5% CBD, although final levels vary with environment, timing and cultivation practices.

Experiences are subjective, but some people describe Purple Haze Auto as creative and energetic at first, followed by a more relaxed feel. Aroma, flavour and perceived effects can differ between individuals and harvests.

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

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

Growing in Australia

Purple Haze Auto is suited to temperate and hot, dry Australian conditions. Outdoor spring planting generally falls between September and November. Because autoflowers progress according to age rather than changing daylight, sowing time should be matched to local temperatures and the desired finish. In very warm districts, strong midday sun and rapid moisture loss may call for attentive watering. In humid areas, generous spacing and airflow can reduce mould risk.

Local conditions vary widely across Australia, so consider heat, rainfall, frost dates and day-to-night temperature swings. Always check the rules that apply in your state or territory before acquiring or germinating seeds.

Indoor

Indoors, plants may reach up to 70 cm and can produce up to 450 g/m² in well-managed conditions. A light, airy growing medium and a stable environment suit the fast autoflower rhythm. Avoid major interruptions once growth begins, as there is limited time for recovery. Gentle canopy management can help light reach developing flower sites without placing excessive stress on the plant.

• Height: up to 70 cm
• Potential yield: up to 450 g/m²
• Flowering window: approximately 8–9 weeks

Outdoor

Outdoors, Purple Haze Auto may grow up to 120 cm and yield up to 100 g per plant under favourable conditions. Choose a sunny position with drainage and steady airflow. Containers offer flexibility during sudden rain, cold snaps or intense heat. Purple colour may become more noticeable with cooler nights, though expression depends heavily on phenotype and environment.

• Height: up to 120 cm
• Potential yield: up to 100 g per plant
• Climate: temperate or hot and dry

Harvest

Australia’s broader outdoor harvest season is March to May. As an autoflower, this variety may finish outside that period when planted in spring; later, climate-appropriate sowings can align more closely with the March–May window. The listed 8–9 week flowering period is a guide rather than a promise. Readiness should be assessed from plant maturity, flower development and local weather, rather than the calendar alone.