Bull-Run Isolated Spore Syringe – 10cc | Spore Genetics

Hybrid Strength. Homestead Speed. A Spore Genetics Exclusive.

The Bull-Run Psilocybe cubensis strain is an In-House Hybrid developed and isolated by Spore Genetics—blending the dense muscular structure of Penis Envy with the vigorous colonization traits of Hillbilly. This proprietary Homestead PE variety produces squat, thick-stemmed fruits that bruise a deep blue, all while maintaining aggressive rhizomorphic growth and fast colonization under ideal conditions.

Great for growers studying high-performance cubensis strains, Bull-Run displays a unique fusion of potency-focused genetics and beginner-friendly reliability. Its spores perform exceptionally well on traditional microscopy substrates like rye, 5-grain mixes, or manure-enriched casing—making it a standout specimen in any spore library.

Bull-Run Genetics

✔ Lineage: Penis Envy × Hillbilly

✔ Type: Homestead PE (Proprietary Hybrid by Spore Genetics)

✔ Spore Color: Dark purple to black

✔ Growth Traits: Thick stems, deep blue bruising, short and dense fruit body morphology

✔ Behavior: Rapid colonization, resilient against contamination, consistent flush potential

Research Notes

Originally conceived as a solution to slow PE colonization, Bull-Run was designed to maintain the potent visual characteristics of Penis Envy while gaining the aggressive colonization speed from Hillbilly stock. In a tub, researchers note its dense spore clusters and uniform development—offering an excellent subject for side-by-side comparisons in hybrid lineage studies.

What’s Included

One (1) 10cc Bull-Run Isolated Spore Syringe

One (1) 16ga Luer-Lok sterile needle

One (1) Alcohol prep pad

Clear "How-to-Use" Insert included with every order

Sealed and prepared in our ISO-7 certified cleanroom. Our In-House Genetics have our Customers Raving!

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