XJ-13 Seeds

Genetics & effects

XJ-13 feminised seeds bring together Jack Herer × G13 genetics, producing a 60% sativa and 40% indica profile. Plants commonly show energetic lateral growth, moderate internodal spacing and elongated flowers that gain density late in bloom. Its terpene profile is led by terpinolene, pinene and caryophyllene, supporting an earthy, sweet and fruity aroma with layers of citrus, pine and cool mint.

THC is listed at 15–22%, while CBD is listed at 0–0.5%. Individual experiences vary, but XJ-13 is often described as upbeat, creative, energetic and talkative, with a happy tone that may feel well suited to social or imaginative settings. Aroma, potency and personal impressions can vary with phenotype and growing conditions. Browse more feminised seeds or explore the sativa seed collection.

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

XJ-13 is an intermediate-level choice with a preference for hot, dry or temperate conditions. In Australia, outdoor planting generally begins in spring, from September to November, once nights are reliably mild. Select a position with strong sunlight, moving air and soil that drains freely. Its branching habit can produce a broad canopy, so allow room between plants and use low-stress shaping where appropriate.

Although feminised seeds are selected to produce female plants, growers should still observe each plant throughout its cycle. Avoid prolonged humidity around dense flowers, particularly after rain, and remove damaged plant material promptly to reduce mould risk. Water at the root zone rather than over the canopy, allowing the growing medium to approach a suitable moisture level between irrigations.

Indoor

Indoors, XJ-13 may reach up to 150 cm. Early canopy shaping, branch support and a controlled vegetative period can help keep its height manageable. A well-aerated medium and consistent air movement are useful as flowers build weight. The expected flowering window is approximately 9–10 weeks.

Indoor yields are listed at up to 650 g/m² under suitable conditions. This figure is a reference rather than an assured outcome; lighting, plant numbers, environment, phenotype and grower experience all influence the final result. Citrus and pine notes can become pronounced during flowering, complemented by earthy sweetness and a fresh mint accent.

Outdoor

Outdoors, plants may grow up to 190 cm and can benefit from stakes or netting as branches lengthen. A sunny temperate garden or hot, dry setting is the best match. Where late-season humidity is common, maintain spacing and airflow, and inspect flowers regularly. Outdoor yields are listed at up to 800 g per plant, subject to local weather, soil quality, container size and seasonal timing.

Harvest

Australian outdoor harvest generally falls between March and May. Use flower development, aroma and trichome appearance to judge maturity rather than relying on the calendar alone. Harvest in dry weather where possible, handle flowers gently to preserve their colour and fragrance, then dry them slowly in a dark, ventilated space. XJ-13 may appeal to growers seeking a lively hybrid profile, substantial yield potential and a layered citrus-pine flavour that could become a favourite among fans of aromatic sativa-leaning plants.