Jack Widow Seeds

Genetics & effects

Jack Widow is a feminised Jack Herer × White Widow cross presented in the Kiwi Seed Bank catalogue. Its 60% sativa and 40% indica balance brings together hazy brightness and broad-leaf structure. Listed THC levels are 15–21%, while CBD is listed at 0–0.5%. These figures are reference ranges rather than fixed outcomes, as environment, phenotype and cultivation choices can all influence the finished profile.

Limonene, terpinolene, myrcene and beta-caryophyllene contribute to a layered aroma spanning lemon, fruit, incense, spice, skunk and classic haze. Individual experiences vary, but some people describe Jack Widow as initially uplifting, social and talkative. A more relaxed or sleepy feeling may emerge later. Aroma, flavour and perceived effects remain subjective.

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

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

Growing in New Zealand

Jack Widow is rated for intermediate growers and may suit temperate areas as well as cooler locations with a relatively short outdoor season. Its 9–10 week flowering period is manageable, although outdoor plants can become large. In New Zealand, outdoor planting is generally associated with spring, from September to November, after local cold and frost risks have eased.

Choose a bright, sheltered position with airflow and enough room for branching. Regional conditions differ considerably, so growers should account for local rainfall, wind, humidity and late-season temperature changes. Check and follow all rules that apply in your location.

Indoor

Indoors, plants are listed at up to 120 cm and may respond well to early canopy management. Even light distribution and suitable spacing can help keep the developing canopy open. As flowering progresses, monitor humidity around dense buds and maintain steady air movement to reduce mould risk.

The listed indoor yield is up to 650 g/m² under favourable conditions. This is an upper reference figure, not a promise. Grow space, lighting, plant health, phenotype and grower experience will shape actual performance. The stated flowering window is approximately 9–10 weeks.

Outdoor

Outdoors, Jack Widow can reach up to 300 cm where root space, sunlight and weather allow. Its potential size makes site planning important, particularly in windy areas. Support may be useful as branches gain weight. In humid districts, open spacing and regular inspection can help reduce the risk of moisture lingering within flowers.

Outdoor production is listed at up to 1,000 g per plant in favourable settings. Cooler or shorter-season regions may produce smaller plants, while a warm, settled autumn can support fuller development. Actual colour, aroma and structure will vary between plants.

Harvest

For New Zealand’s southern-hemisphere calendar, the usual outdoor harvest period is March to May. Timing depends on planting date, phenotype, latitude and seasonal weather. Watch flower maturity alongside the forecast rather than relying on a single calendar date. At harvest, the lemon-haze character may sit alongside incense, spice, fruit and skunk, creating a complex profile that could become a favourite for those who enjoy bold, old-school aromas.