GMO Cookies Auto Seeds

GMO Cookies Auto is an indica-dominant, feminised autoflower in the Outback Seed Bank catalogue. It combines GMO Cookies with an autoflowering ruderalis lineage, bringing distinctive savoury aromas to a relatively compact plant. Catalogue figures indicate 20–27% THC and 0–1% CBD, although cannabinoid levels, growth and yield can vary with conditions and cultivation skill.

Genetics & effects

The stated genetic balance is approximately 80% indica and 20% sativa. Its aromatic profile layers diesel, garlic and skunk over spicy, sweet notes. Caryophyllene, limonene and myrcene are the listed dominant terpenes, contributing to its bold and complex character.

Experiences are subjective, but some consumers describe an initially euphoric or uplifting feeling that gradually becomes relaxed and sleepy. Individual impressions can differ according to setting, personal sensitivity and the finished flower. The reported THC range places this among the stronger options in the autoflower seed collection.

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

GMO Cookies Auto is rated intermediate and may suit growers who already understand watering, airflow and canopy management. As an autoflower, its development is driven mainly by age rather than a seasonal change in daylight. A light, well-draining medium and restrained feeding can support steady growth without overwhelming the root zone.

In the southern hemisphere, spring planting falls between September and November. Hot, dry and temperate climates are the listed preferences. Local temperature, humidity and rainfall still matter, so growers should respond to their immediate conditions rather than rely on a fixed calendar.

Indoor

Indoors, plants may reach up to 120 cm. The complete cycle is listed at roughly 10–11 weeks, making consistent light and early planning important. Gentle low-stress training can help create a more even canopy, while strong airflow around dense foliage may reduce mould risk. Avoid major training late in the cycle, as autoflowers have limited time to recover.

• Height: up to 120 cm
• Cycle: approximately 10–11 weeks
• Potential yield: up to 600 g/m²

Outdoor

Outdoor plants may grow to around 150 cm and are listed with potential yields of up to 700 g per plant. Choose a position with generous direct sun, good drainage and enough air movement for the canopy. In hot, dry weather, mulch can help moderate moisture changes. In temperate areas, shelter from prolonged rain may reduce the chance of mould developing around compact flowers.

Check plants regularly for weather stress and pests, particularly as buds gain weight. Supports may be useful if branches begin to lean. These figures are potential outcomes rather than guarantees; container size, sunlight, climate and experience all influence the final result.

Harvest

Australian outdoor harvest season generally runs from March to May, although an autoflower started in spring may finish earlier according to its 10–11 week cycle. Use plant maturity rather than dates alone to guide harvest timing. Look for swollen flowers, changing pistil colour and developed trichomes, then cut during a dry spell where possible. Careful drying in a dark, ventilated space helps retain the diesel, garlic, skunk and sweet-spice profile.