Hellfire OG Auto Seeds

Hellfire OG Auto is a feminised autoflowering option presented in the Kiwi Seed Bank catalogue. Hellfire OG genetics are crossed with ruderalis to create a compact plant with a life cycle suited to growers seeking a quicker turnaround. Its profile combines sharp citrus, lemon and sour notes with diesel, pine, pepper and herbal depth.

Genetics & effects

This cultivar is described as approximately 70% indica and 30% sativa. Limonene, beta-caryophyllene, myrcene and pinene contribute to its layered aroma and flavour. THC potential is listed at 20–29%, while CBD may reach 0.5%; actual composition can vary with phenotype and growing conditions.

Experiences are subjective. Some people describe the initial character as creative, energetic, euphoric or social, followed by a happier, more relaxed feel. Others may perceive the balance differently, particularly depending on individual sensitivity and setting. Explore more compact options in 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

Hellfire OG Auto is rated for intermediate growers and may suit temperate areas as well as cooler regions with short summers. As an autoflower, it moves into bloom according to age rather than a changing light schedule. Its compact structure, with indoor and outdoor height listed at up to 80 cm, can make routine plant management straightforward.

For a southern-hemisphere seasonal plan, spring planting falls between September and November. Choose a bright, sheltered position and maintain a light, well-aerated root zone. Autos generally favour consistency, so avoid unnecessary transplanting, major stress and abrupt changes to moisture or nutrition. Good spacing and airflow can reduce mould risk during humid weather.

Indoor

Indoors, a stable environment helps this compact cultivar develop evenly. Use a free-draining medium, allow adequate space between plants and monitor humidity as flowers gain density. Gentle training early in growth may help distribute the canopy, but heavy pruning can consume valuable recovery time during the short vegetative phase.

• Flowering window: approximately 8–10 weeks
• Indoor height: up to 80 cm
• Indoor yield: up to 400 g/m²
• Difficulty: intermediate

Figures are catalogue estimates rather than fixed outcomes. Light quality, container size, airflow, plant health and grower experience all influence performance.

Outdoor

Outdoors, place plants where they can receive strong sunlight while remaining protected from severe wind and prolonged rain. In cooler parts of New Zealand, movable containers can provide useful flexibility when conditions change. Check foliage and flowers regularly after wet spells, and keep the area around each plant open to support air movement.

Outdoor yield is listed at up to 150 g per plant, with height of up to 80 cm. Phenotype, sunlight, root volume, temperature and seasonal timing will affect both size and output. See the feminised seed range for further catalogue choices.

Harvest

New Zealand’s main outdoor harvest period is March to May. Because autoflowers run on their own age-based schedule, plants started at different times may finish outside that broader window. Assess maturity plant by plant, noting flower development, aroma and natural colour changes. Harvest during a dry interval where possible, handle flowers carefully and maintain clean tools and good ventilation during post-harvest drying.