Granite Haze F4 by Speedrun Seeds
Haze × Ruderalis
Granite Haze F4 is a sativa-leaning autoflower hybrid developed by Speedrun Seeds, known for its resilient and fast-cycling genetics. This F4 selection has undergone four generations of refinement to stabilize its traits, offering a more predictable and consistent experience. It aims to deliver classic Haze characteristics in a more manageable and quicker-flowering package.
Appearance and Morphology
Granite Haze F4 typically grows into a medium-tall autoflower, characterized by a central columnar stem and several side branches. Plants often reach heights between 70-120 cm indoors with training, featuring narrow, serrated leaves indicative of its sativa heritage. The flowers develop into elongated, airy colas with a good calyx-to-leaf ratio, often displaying lime to forest green coloration, sometimes with subtle lavender hues. Pistils mature from cream to copper, and the buds are covered in a dense layer of trichomes that extend onto the surrounding leaves.
The dried flowers present as tapered, diamond-shaped spears. Their slightly looser structure, compared to indica-dominant autos, aids in preserving volatile terpenes during a controlled drying process. Properly cured buds exhibit a frosty appearance with minimal leafy protrusions, maintaining an elegant, elongated profile reminiscent of classic Haze strains.
Aroma and Flavor
The aroma of Granite Haze F4 is bright and airy, carrying a distinct Haze signature complemented by clean, mineral undertones. Initial scents often include sweet citrus, green apple skin, and pine, suggesting a profile rich in terpinolene and pinene. As the flowers mature, mid-notes of fresh herbs, white pepper, and a hint of balsamic spice emerge. A subtle flinty or wet-stone aroma contributes to the 'Granite' aspect of its name.
Upon combustion or vaporization, the flavor profile mirrors the aroma, offering a clean, mineral edge. The initial taste is zesty and green, combining lemon-lime notes with pine needles and fresh basil. Mid-palate flavors include white pepper and coriander, with a subtle floral sweetness. The finish lingers with notes of dry citrus peel and polished cedar, providing a complex and refreshing sensory experience.
Effects
Granite Haze F4 is reported to deliver energetic effects, consistent with its sativa-forward genetics. The strain is designed to provide a clear-headed and invigorating experience, making it suitable for daytime consumption or activities requiring focus and mental clarity.
Terpenes and Cannabinoids
This strain typically exhibits THC levels ranging from 16-22%, with CBD content below 1%. While specific terpene profiles can vary, common terpenes associated with Granite Haze F4 include terpinolene, pinene, limonene, caryophyllene, and myrcene. The prominent terpinolene is often responsible for its bright, sparkling aroma and flavor characteristics.
Growing Information
As an autoflowering hybrid, Granite Haze F4 offers a compressed lifecycle, typically flowering in under 12 weeks from seed. Its ruderalis heritage imparts hardiness and photoperiod independence, allowing it to flower based on age rather than light cycles. The F4 stabilization results in more predictable plant height, internodal spacing, and a more uniform harvest window. It is adaptable to various indoor setups and can tolerate cooler nights, making it suitable for growers seeking reliable, faster turns without sacrificing quality.
Origins and Lineage
Granite Haze F4 is a modern hybrid created by Speedrun Seeds, combining a sativa-dominant Haze archetype with a robust ruderalis donor. The ruderalis genetics were introduced to impart autoflowering capabilities and enhance hardiness, while the Haze lineage contributes classic aromatic signatures and sativa-like vigor. The F4 designation signifies that the strain has been refined through four generations of selective breeding, significantly stabilizing its desired traits for consistency.