Psilocybe Hybrid Yellow Umbo Swab Set

Genus: Psilocybe

Species: P. cubensis (aka Cubes, Magic Mushrooms)

Variety: Yellow Umbo (Jack Frost × Psilocybe ochraceocentrata) created by Yoshi Amano and Kilor Diamond

Climate: Tropical and subtropical

Habitat: Found in nutrient-rich pastures, grasslands, and manure-fertilized soils, often near livestock.

Temp: 74°–80°F (23–27°C)

Relative Humidity: 85%–95%

Cap: Medium to large caps with a distinct golden center that resembles a sunflower, fading to creamy white around the edges (hygrophanous). Shape is typically rounded to broadly convex with some waviness at maturity.

Stem: Thick, textured stems with a rugged surface and dense structure. Pale cream to white in color, often bruising blue near the base or where handled.

Gills: Chocolate to dark purplish-brown, closely spaced, and attached directly to the stem (adnate). Mature gills are rich in contrast against the pale cap.

Spores: Dark purplish-brown, smooth, elliptical. Basidia typically produce four spores each (tetrasporic). 

Growth Characteristics: Fast colonizer with strong, rhizomorphic mycelium. Fruits grow dense and uniform, with high resistance to environmental fluctuation.

Notes: Grows best in environments with stable warmth, high humidity, and consistent fresh air exchange.

Potency: Psilocybin content is undocumented but expected to be comparable to or slightly above standard cubensis levels (~0.75%–1.75%).