Jack Widow Auto Seeds

Genetics & effects

Jack Widow Auto is a feminised autoflower presented in the Kiwi Seed Bank catalogue. Its reported lineage combines White Widow, Jack Herer and ruderalis genetics, with an approximately 50% sativa and 50% indica profile. The ruderalis influence enables flowering according to plant age rather than a change in daylight hours, making this a relatively approachable option for newer growers.

Reported THC levels range from 15–20%, while CBD may range from 0–1.5%. Individual experiences vary, but some people describe the effect as initially energetic, happy or uplifting, followed by a more relaxed sensation. Others may perceive a euphoric quality. The flavour profile is commonly described as earthy and herbal, supported by sweet, woody accents. Reported terpenes include myrcene, caryophyllene and pinene.

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

In New Zealand’s southern-hemisphere growing cycle, outdoor planting generally begins during spring, from September to November. Jack Widow Auto is associated with hot, dry and temperate climates. Choose a position with strong direct light, airflow and shelter from prolonged heavy rain. Local conditions differ considerably between the upper North Island, cooler southern districts and exposed coastal areas.

Its autoflowering cycle means seasonal light changes are less important than they are for photoperiod plants. Even so, warmth and light intensity can influence growth. Avoid overwatering young plants, and use a free-draining medium to reduce the risk of root stress and mould. Always check the rules that apply in your location before obtaining seeds or growing cannabis.

Indoor

Indoors, plants may reach up to 110 cm. The complete reported cycle is around 10–11 weeks, though phenotype and environment can shift the timing. A stable light schedule, moderate feeding and consistent airflow suit its beginner-friendly profile. Autoflowers generally have limited time to recover from major stress, so gentle plant handling is preferable.

Under favourable conditions, the reported indoor yield is up to 600 g/m². This figure is an indication rather than an assured outcome. Light quality, container size, temperature, nutrition and grower experience all contribute to final performance.

Outdoor

Outdoors, Jack Widow Auto may grow up to 150 cm and produce up to 200 g per plant in favourable conditions. A sunny, well-drained position is ideal. In humid districts, leave room between plants for airflow and inspect dense flowers after wet weather to reduce the risk of mould.

Because each seed can express its lineage differently, height, colour, aroma and finishing time may vary. Its compact cycle can offer flexibility, but planting too early may expose seedlings to cold nights, while a late start can bring flowering into cooler autumn weather.

Harvest

New Zealand’s main outdoor harvest period runs from March to May. Autoflower plants started in spring may finish earlier because their cycle is based on age, so use plant maturity rather than the calendar alone. Look for swollen flowers, changing pistil colour and mature trichomes. Aroma may become more pronounced near the finish, bringing forward the earthy, sweet and woody notes that could make this a favourite among growers who enjoy classic profiles.