Jack Herer Seeds

Genetics & effects

Jack Herer feminised seeds bring together Haze × Northern Lights #5 × Shiva Skunk, creating a balanced profile of approximately 55% sativa and 45% indica. The catalogue specifications indicate THC levels of 15–24% and CBD levels of 0–1%, although cannabinoid content can vary with phenotype, environment and cultivation practices.

The aromatic profile leans towards classic haze, bright citrus, fresh pine and warming spice. Terpinolene, caryophyllene and pinene are listed among the prominent terpenes. Individual experiences differ, but some people describe Jack Herer as energetic, euphoric and focused at first, followed by a more relaxed mood. Others report feeling happy or social. These impressions are subjective and can vary considerably.

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

Jack Herer is considered an intermediate-level option, suited to growers who can maintain steady conditions and monitor plant structure. Its 9–10 week flowering period is relatively manageable for a haze-influenced cultivar, while the Northern Lights #5 and Shiva Skunk heritage may contribute to a sturdier, more compact framework.

In Australia, timing and conditions differ greatly between tropical, subtropical, temperate and cooler districts. For a typical outdoor cycle, spring planting falls between September and November. Hot, dry and temperate climates are the listed preferences, but growers should still account for local heatwaves, rainfall, humidity and seasonal daylight.

Indoor

Indoors, plants may reach up to 130 cm. Training and canopy management can help make the most of vertical space and encourage even light exposure. Techniques such as gentle bending, topping and selective pruning may suit experienced growers, provided plants have enough time to recover during vegetative growth.

• Flowering time: approximately 9–10 weeks
• Indoor height: up to 130 cm
• Potential indoor yield: up to 600 g/m²

Maintain consistent airflow around the canopy and avoid prolonged excess humidity, especially as flowers gain density. Stable temperatures, suitable spacing and clean growing areas can help reduce the risk of mould and other cultivation issues. Yield and plant size remain dependent on phenotype, lighting, nutrition, container size and grower experience.

Outdoor

Outdoors, Jack Herer may grow up to 180 cm when given ample root space, sunlight and a favourable season. Choose a position with strong direct light and good air movement. In very hot districts, careful irrigation planning and root-zone protection can help plants handle intense summer conditions. In wetter areas, shelter from extended rain and regular inspection of dense flowers may be useful.

• Outdoor height: up to 180 cm
• Potential outdoor yield: up to 700 g per plant
• Preferred settings: hot, dry or temperate climates

These figures are catalogue estimates rather than assured outcomes. Regional conditions, seasonal variation and cultivation choices can substantially influence performance.

Harvest

Australian outdoor harvest commonly falls between March and May, depending on latitude, planting date, phenotype and seasonal weather. Monitor flower development rather than relying on the calendar alone. Indoors, allow around 9–10 weeks after flowering begins. A patient finish may support the cultivar’s characteristic haze, citrus, pine and spice expression, making it a favourite profile for growers who enjoy layered aromas.

Outback Seed Bank presents Jack Herer as feminised seed, intended to produce predominantly female plants. Natural variation remains possible, so each plant should be observed throughout its growth cycle.