Durban Poison Seeds

Genetics & effects

Durban Poison is a feminised, predominantly sativa selection derived from South African landrace genetics. This commercial line is listed at approximately 90% sativa and 10% indica, although individual plants may display natural variation. Its long, vigorous structure and narrow leaves reflect its sativa heritage, while some expressions may show a modest indica influence.

THC potential is listed at 15–20%, with CBD at approximately 0.1–0.4%. Experiences are subjective, but Durban Poison is often described as energetic, uplifting, creative and focused, sometimes accompanied by a bright sense of euphoria. Aromas and flavours may combine sweet spice, earth, citrus and pine. Terpinolene, myrcene, ocimene and beta-caryophyllene are among the associated terpenes.

Explore feminised seeds, high thc seeds, the Australian grow guide, and the planting calendar.

Explore feminised seeds, high thc seeds, the Australian grow guide, and the planting calendar.

Growing in Australia

This intermediate-level cultivar is best suited to growers who can manage sativa stretch, airflow and canopy shape. Feminised seeds are intended to produce female plants, though biological variation remains possible. Durban Poison generally favours warm, dry or temperate conditions, with stable warmth and plenty of direct light supporting steady development.

In Australia’s southern-hemisphere cycle, outdoor planting commonly aligns with spring from September to November. Timing should reflect local temperatures, daylight and rainfall rather than the calendar alone. Humid coastal areas may require extra spacing and airflow to reduce mould risk, while very hot inland sites can benefit from careful moisture management and shelter from harsh wind.

Indoor

Indoors, plants may reach up to 130 cm and typically flower for around 9–11 weeks. Early canopy training can help control vertical growth and distribute light more evenly. Use a well-ventilated space, allow room between branches and avoid leaving the root zone constantly saturated. A consistent light schedule and moderate feeding approach suit this vigorous cultivar better than abrupt changes.

Under favourable conditions, listed indoor yields reach up to 450 g/m². This is a potential figure rather than an assured outcome, as lighting, environment, plant health and grower experience all influence the final result.

Outdoor

Outdoors, Durban Poison can grow up to 200 cm where roots have space and the season remains warm. Its height makes site selection important: choose strong sun, useful airflow and enough room for lateral branching. Supports may help mature branches carry developing flowers, particularly in exposed locations or after heavy rain.

Potential outdoor yields are listed at up to 700 g per plant in favourable conditions. Regular observation is useful through late summer and autumn, especially where humidity rises or weather becomes unsettled.

Harvest

Australian outdoor harvest generally falls between March and May, depending on latitude, spring planting time, local weather and phenotype. Rather than relying on a fixed date, watch flower maturity and overall plant condition. Indoor plants are usually ready after their 9–11-week flowering period. Handle mature flowers gently, remove damaged material and use a clean, ventilated drying area to preserve their distinctive sweet, spicy, citrus-pine character.