Jack Horror brings a bright Sativa lift, rich floral character, and a resin-heavy finish to your garden. With 22%–24% THC and a lively 60% Sativa profile, this feminized variety is built for growers chasing upbeat effects, bold flavor, and generous harvests.

Its Amsterdam roots run deep. Jack Horror combines Northern Lights with Haze 19 and Skunk #1, blending classic genetics into a vigorous, mostly Sativa hybrid. The result carries a 40% Indica / 60% Sativa balance and a reputation for dependable performance.

Expect an inviting mix of earthy depth, ripe-fruit sweetness, and floral accents. Myrcene gives the aroma a mellow, rich foundation, while caryophyllene adds a warm peppery edge. Limonene, alpha-pinene, and terpinolene round out the bouquet with fresh, lively notes.

At 22%–24% THC, Jack Horror delivers a euphoric, happy experience with a tingly finish. Its Sativa character brings an energetic head high that can encourage creativity and focus, making it a spirited choice for social sessions or a productive change of pace.

The terpene-rich profile suits fans of expressive flavor and aromatic flower. Myrcene contributes earthy, fruity depth, while caryophyllene brings a spicy note. Its abundant resin also makes Jack Horror appealing for growers interested in crafting concentrates. Effects and experiences vary from person to person.

These feminized seeds produce female plants and flower in approximately 9–11 weeks. Jack Horror is rated suitable for beginners, and germination is guaranteed. Start with a quality, well-draining medium such as coco, peat, or a blend amended with perlite, and provide steady care as seedlings establish.

During early growth, give plants consistent light, balanced nutrition, and room to develop. A healthy start supports Jack Horror’s tall, Sativa-leaning structure and strong side branches. Indoors, plan for vertical space and consider ScrOG training to create an even canopy.

Jack Horror grows well indoors or outdoors in a temperate climate. Aim for warm, sunny conditions and protect roots with effective drainage. Keep airflow moving through the canopy, monitor humidity as flowering progresses, and check plants regularly for pests. Its hardy nature and manageable height of around 4.9 feet make it a practical option for many gardens.

Allow 9–11 weeks of flowering, with outdoor harvest typically arriving in November. Indoor growers can expect approximately 350–450 g/m², while outdoor plants may produce 500–600 g each under favorable conditions. Dense, resin-coated buds reward patient care and careful monitoring through the final stretch.

Choose Jack Horror for classic Amsterdam genetics, vivid Sativa energy, and a generous, aromatic harvest. Grassfarmer offers premium seeds in small and bulk quantities, with fast, discreet shipping and guaranteed delivery across the USA, Canada, the European Union, and the U.K. Order with confidence and put this standout strain in your garden.

Attributes

Climate Temperate
Effects Euphoric, Happy, Tingly
Flavors Earthy, Fruity, Sweet
Flowering Time 9–11 weeks
Genetics 40% Indica / 60% Sativa
Harvest Month November
Height 4.92 ft | 1.5 m
Indoor Yield 1.15–1.47 oz/ft² | 350–450 g/m²
Lineage Northern Lights x (Haze 19 x Skunk #1)
Medicinal Arthritis, Insomnia, Pain
Outdoor Yield 17.64–21.16 oz/plant | 500–600 g/plant
Sex Feminized
THC 22%–24% (High)
Terpenes Caryophyllene, Myrcene, Limonene, Alpha-Pinene, Terpinolene