STRNG Seeds – Durban Poison (THCA)

THCA Durban Poison stands out for its sharp anise aroma, compact growth structure, and excellent bag appeal. It’s a landrace-descended cultivar optimized for THCA compliance and modern grower expectations.

It has a distinct scent of licorice, citrus rind, and fresh herbs. As the plant matures, the aroma becomes earthier and slightly spicy with pine notes.

The taste is bright and complex—think citrus zest, sweet fennel, and a hint of creamy wood. It’s crisp and clean on the exhale, with lingering spice.

It grows with tall, upright structure but can be kept between 100–130 cm indoors with early topping or low-stress training. Outdoors, it stretches more freely.

Instead of sweet or creamy notes, this cultivar delivers a bold, herbal-citrus profile with unique savory depth, ideal for growers who prefer sharp, terp-rich flower.

Expect medium-sized, conical buds with bright orange pistils and a heavy coating of trichomes. Leaves are narrow and can darken with cool nighttime temps.

Indoors, it flowers in about 8–9 weeks. Outdoors, it’s typically ready for harvest around early October, depending on climate.

Outdoors, it can reach up to 2.5 meters in height, especially when planted early in the season and left untrained.

Yes. Indoors it typically produces 500–600g/m². Outdoors, large plants in full sun can yield 600–800g or more with proper care.

Yes. The scent builds steadily throughout flower and becomes quite pronounced in the final two weeks. Odor control may be needed indoors.

Feminized seeds grow into female plants only, which develop flower. This THCA-specific version has been selected to meet structural and compliance criteria without sacrificing quality.

Yes, they are under the 2018 Farm Bill. Please read HERE.

It’s better suited for intermediate growers. While it’s vigorous, its stretch and vertical dominance are best managed with prior training experience.

Yes. As a photoperiod strain, THCA Durban Poison needs 12 hours of darkness and 12 hours of light to trigger and maintain the flowering stage.

It offers good resistance, especially in dry climates. Proper spacing, airflow, and pruning in humid environments are key to keeping large colas healthy.

Both work well. Indoors provides better canopy control, while outdoors allows the plant to stretch and deliver full terpene expression in natural sun.

Topping, fimming, and low-stress training are ideal. Using a SCROG setup can help control vertical growth and produce even colas.

Full-spectrum LED or HPS lights delivering 800–1000 PPFD during bloom help develop dense flower and strong terpene expression.

Keep temps between 22–26°C during flower. Lower RH to 40–45% in the final weeks to avoid moisture issues and enhance resin production.

Water when the top 1–2 inches of soil dry out. It responds well to stable, consistent watering, especially during heavy flowering.