Jack Widow Auto Seeds

Outback Seed Bank presents Jack Widow Auto as a feminised autoflower option for growers seeking balanced genetics, a compact structure and a straightforward seed-to-harvest schedule. Reported THC sits around 15–20%, with CBD listed at 0–1.5%. Figures are catalogue estimates rather than assured outcomes, as plant expression depends on environment, care and phenotype.

Genetics & effects

Jack Widow Auto is described as White Widow × Jack Herer × ruderalis, with an approximately 50% sativa and 50% indica balance. Ruderalis heritage enables flowering according to plant age rather than changing daylight hours. The aromatic profile may combine earthy and herbal notes with sweet, woody accents. Myrcene, caryophyllene and pinene are the principal listed terpenes.

Experiences are subjective and can vary considerably. Some consumers describe a happy, uplifting or energetic beginning, followed by a relaxed finish. Others may perceive a more pronounced euphoric character. Potency and personal response differ, so these descriptions should be read as general impressions only.

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

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

Growing in Australia

This variety is listed as beginner-friendly and suited to temperate or hot, dry conditions. Its complete cycle is typically around 10–11 weeks, although temperature, light, root space and plant health can shift the timeline. Autoflowers generally favour a low-stress approach because their limited vegetative period leaves less time to recover from major setbacks.

For outdoor planning, Australian spring runs from September to November. Choose a bright position with good airflow and free-draining soil. Requirements applying to cannabis seeds and cultivation vary between Australian jurisdictions, so check the rules relevant to your location before proceeding.

Indoor

Indoors, Jack Widow Auto may reach up to 110 cm and is listed with a potential yield of up to 600 g/m² under favourable conditions. These numbers are not assured. A consistent environment, suitable lighting and careful watering can support even growth. Avoid leaving the root zone continually wet, and maintain air movement around the canopy to reduce mould risk.

• Cycle: approximately 10–11 weeks
• Indoor height: up to 110 cm
• Listed indoor yield: up to 600 g/m²
• Experience level: beginner

Explore more compact options in the autoflower seed collection or compare formats in the feminised seed collection.

Outdoor

Outdoor plants may grow up to 150 cm and produce up to 200 g per plant in favourable settings. Hot, dry regions may require close attention to moisture, while temperate areas benefit from a sunny site sheltered from prolonged rain and strong wind. Gentle support can help branches as flowers gain weight. Final height, colour and production will vary with local conditions.

Harvest

Australia’s traditional outdoor harvest period falls from March to May. Because this is an autoflower, maturity is governed mainly by age, so plants started during September–November may finish earlier than that seasonal window. Use the stated 10–11-week cycle as a planning guide and assess each plant individually. Aroma, flower development and natural leaf fade can help indicate maturity.