GMO Cookies Seeds

Genetics & effects

GMO Cookies is a feminised, indica-dominant cross of Chemdawg × Girl Scout Cookies, with an estimated 90% indica and 10% sativa profile. THC is listed at 20–25%, while CBD is listed at 0–0.8%. Its aromatic profile is famously bold, combining sweet, earthy and herbal notes with pungent diesel, coffee and garlic. Caryophyllene, limonene and myrcene are the principal listed terpenes.

Experiences are subjective, but GMO Cookies is often described as powerful, calming and deeply relaxed, with an initial sense of euphoria that may feel happy, uplifting or creative. Its pronounced profile may appeal to experienced enthusiasts who favour rich aromas and an intense, indica-leaning experience. Outback Seed Bank presents this variety within its feminised seed catalogue.

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

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

Growing in Australia

GMO Cookies is rated as an intermediate grow and is suited to temperate or hot, dry conditions. Its vigorous branching and potential height call for thoughtful space management. In Australia, outdoor planting is generally aligned with spring, from September to November, once local conditions are stable. Timing varies between regions, so growers should account for humidity, rainfall, wind and seasonal temperature shifts.

Good airflow is especially valuable around dense flowers. Avoid overcrowding, remove weak lower growth where appropriate and inspect plants regularly for moisture pockets or mould. A balanced feeding approach is preferable to sudden changes, while steady watering supports even development. Its strong aroma can become increasingly noticeable through flowering.

Indoor

Indoors, GMO Cookies can reach up to 180 cm, although early canopy training may keep growth more manageable. Topping, low-stress training or a screen can help spread branches and improve light coverage. Allow enough vertical room for the flowering stretch and maintain airflow both above and below the canopy.

The listed flowering period is approximately 9–10 weeks. Under suitable conditions, indoor production is listed at up to 550 g/m². This figure is a catalogue estimate rather than an assured outcome; lighting, plant health, environment and grower experience all influence performance. Explore more options in the indica seed collection.

Outdoor

Outdoors, plants may also grow to up to 180 cm. A sunny position, free-draining soil and shelter from damaging winds can support sturdy growth. In hot, dry areas, mulch may help moderate root-zone temperature and retain moisture, while early-morning watering allows foliage and surrounding surfaces to dry during the day.

In temperate areas, late-season rain and cool nights deserve close attention because the flowers can become dense. Maintain space between branches and provide support as weight develops. Outdoor production is listed at up to 600 g per plant, with actual results shaped by season length, sunlight, soil, plant size and local conditions.

Harvest

Australian outdoor harvest typically falls between March and May. Rather than relying only on the calendar, assess flower maturity, trichome appearance and the plant’s overall finish. Indoors, plan around the 9–10 week flowering window. Careful handling after cutting helps preserve the variety’s distinctive colour, resin coverage and layered sweet, diesel, coffee and garlic aromas.