G13 Auto Seeds

Genetics & effects

G13 Auto is a feminised, autoflowering hybrid combining G13 genetics with ruderalis. Its profile is approximately 80% indica and 20% sativa, making it a compact choice for growers who favour a strongly indica-leaning plant without relying on a seasonal light-cycle change to begin flowering. Listed THC potential is 18–24%, while CBD is listed at 0–0.7%.

The aroma and flavour profile brings together sweet berry and broader fruity notes with herbal, woody and skunky depth. Myrcene, caryophyllene and limonene are the prominent listed terpenes. Individual experiences can differ, but users may subjectively describe the effects as initially uplifting or euphoric, followed by a potent sense of relaxation and sleepiness. Setting, individual sensitivity and the finished flower can all shape the experience.

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 intermediate-level autoflower can suit hot, dry areas, temperate regions and cooler locations with shorter summers. Because it flowers according to age rather than changing daylight hours, timing can be flexible. Even so, outdoor growers commonly aim for spring planting from September to November so plants can make use of warmer weather and stronger natural light.

Good airflow and sensible moisture control are worthwhile across Australian conditions. In humid coastal areas, space plants well and keep foliage open to reduce mould risk. In hot inland conditions, avoid allowing the root zone to dry too quickly and provide shelter from severe heat or wind where needed. See more autoflower seeds and feminised seeds in the Outback Seed Bank catalogue.

Indoor

Indoors, G13 Auto can reach up to 110 cm and may produce up to 550 g/m² under well-managed conditions. Its moderate height works well where vertical room is limited, though enough space should be reserved for airflow around the canopy. A stable environment, free-draining medium and consistent lighting support steady development.

• Indoor height: up to 110 cm
• Indoor yield: up to 550 g/m²
• Flowering period: approximately 8–9 weeks

Autoflowers have limited time to recover from major stress, so gentle plant handling is generally preferable. Keep environmental changes gradual and watch moisture levels closely rather than following a rigid schedule.

Outdoor

Outdoors, plants may reach up to 120 cm and yield up to 100 g per plant. Choose a sunny position with good drainage and airflow. Pots allow plants to be shifted during sudden cold snaps, heavy rain or extreme afternoon heat, while in-ground growing may offer more stable root temperatures. Cooler short-season regions can benefit from an early-to-mid spring start once local conditions are suitable.

Harvest

The listed flowering window is 8–9 weeks, although total timing varies with environment and plant development. For spring plantings in Australia, harvest commonly falls within the broader March–May autumn window, but faster autoflower cycles may finish earlier depending on the start date. Use visible plant maturity rather than the calendar alone. Yield, height, cannabinoid levels, colour and finish are potential outcomes, not guarantees.