MK Ultra Seeds

Genetics & effects

MK Ultra feminised is an indica-dominant cross of OG Kush × G13, with a listed balance of 80% indica and 20% sativa. Its THC range is listed at 18–24%, while CBD is listed at 0–0.5%. This profile is best suited to intermediate growers who can monitor plant structure, airflow and environmental conditions throughout the cycle.

The aroma and flavour profile combines earthy, pungent and skunk notes with a contrasting sweet edge. Myrcene, caryophyllene and limonene are the prominent listed terpenes. Individual experiences vary, but some consumers may describe the effects as initially euphoric, happy or uplifting before developing into a deeper sense of relaxation and sleepiness. Setting, personal sensitivity and flower characteristics can all shape the subjective experience.

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

In Australia, MK Ultra may suit temperate or hot, dry settings. For an outdoor seasonal cycle, spring planting falls between September and November. Choose timing according to local temperatures, daylight and late-season rainfall rather than relying on the calendar alone. Although the strain has a relatively compact indica-led structure, regular observation is useful where humidity fluctuates.

Feminised seeds are intended to produce female plants, though plant expression and performance can vary. Give each plant enough space for airflow and light penetration. Avoid persistently wet growing media, and inspect dense foliage regularly to reduce the risk of mould or other moisture-related issues.

Indoor

Indoors, plants are listed to reach up to 120 cm, making them manageable in many controlled spaces. The flowering period is approximately 8–9 weeks, with catalogue yields listed at up to 500 g/m² under favourable conditions. These figures are reference points rather than assured outcomes.

A stable environment, balanced nutrition and consistent airflow may support even development. Because the flowers can become dense, keep humidity controlled during later flowering. Light canopy management can help maintain exposure across flowering sites without placing unnecessary stress on the plants.

Outdoor

Outdoor plants are listed to reach up to 180 cm and produce up to 600 g per plant in suitable conditions. A sunny, sheltered position with free-draining soil is preferable. In hot, dry regions, monitor moisture carefully and protect the root zone from extreme heat. In temperate areas, allow enough time for flowering before cool, damp autumn weather becomes established.

The pungent skunk aroma may become pronounced as flowers mature, so site selection is worth considering. Branch support may also be useful later in the season if flower weight increases.

Harvest

Australian outdoor harvest generally falls between March and May, depending on planting time, latitude and seasonal conditions. Assess flower maturity directly rather than using dates alone. Indoors, harvest follows the listed 8–9 week flowering window, with plant appearance providing the final guide.

Handle mature flowers gently and maintain a clean, well-ventilated drying space. Final yield, potency, colour, aroma and flavour will vary with phenotype, environment and grower experience, making each finished plant potentially distinctive.