Reported to be allergenic. Additionally, Sporotrichum pruinosum has been observed in the respiratory secretions of some human patients, indicating a possible ability to colonize the bronchopulmonary pathways. This genus does not cause sporotrichosis (see also Sporothrix, for there is some taxonomic confusion between these two genera).
Rarely found in cooler regions, Sporotrichum is prevalent in warm-temperate and tropical zones, and grows (rapidly) on soils, decaying plant matter, wet or rotting wood, grasses, and landscaping mulch. Colonies may appear white, rosy-beige, or orange, and have a velvety to granular texture.