Colossus Feminised Seeds

Colossus is a monumental sativa-dominant hybrid from Ace Seeds, created by crossing the still-unbeaten Golden Tiger with Neville’s legendary NL#5/Haze (A). This elite lineage combines Thai Koh Chang dominance, classic A5 Haze power, and added Double Thai influence, resulting in a cultivar that is even more cerebral, stimulating, and lemon-driven than Killer A5 Haze. Despite its complex genetic makeup, Colossus is impressively consistent, expressing mainly one dominant phenotype flowering in 11–12 weeks, with a rarer, more sativa-leaning variant that finishes slightly later.

Structurally, Colossus is a vigorous, tall, heavily branched plant with enormous yield potential. Indoors, it remains manageable for experienced sativa growers, responding extremely well to training, pruning, and both SOG and SCROG systems thanks to its strong lateral branching and dominant main colas. Outdoors, when planted early in suitable climates, it can develop into massive 4 × 4 meter plants capable of truly colossal harvests. The primary phenotype produces large, dense, high-bag-appeal colas with excellent flower-to-leaf ratios, while the secondary phenotype expresses a wilder, near-pure sativa structure with looser floral formations.

The terpene profile is refined yet explosive, led by vivid lemon-Thai citrus layered with sweet florals, mango, incense, and a deep earthy, gassy, hashy base. Effects are extremely potent, long-lasting, and dramatic, delivering classic high-energy Thai cerebral intensity followed by powerful shifts in perception. The denser phenotype evolves into a heavier, introspective sativa-indica experience with strong physical relaxation and dissociative depth, while the lighter phenotype remains soaring, expansive, euphoric, and mentally stimulating. A long cure of 4–6 months significantly enhances depth, intensity, and complexity, making Colossus a true connoisseur-grade sativa for those seeking maximum power, scale, and psychedelic character.