Blue oyster mushroom supplier in India | Mushroom supply | Biobritte mushroom supplier Blue oyster mushroom supplier in India Pleurotus ostreatus var columbinus. The Blue Oyster mushroom is a subspecies of the Pearl Oyster that exhibits a notable blue-gray hue. The color contrast between the darker caps and pale gills gives them a truly stunning appearance. Native to Western Europe, the Blue Oyster thrives in cooler temperatures. If you are looking for a mushroom that is easy and fun to grow, plus delicious to eat, and packs a nutrient-rich punch, then look no further than the Blue Oyster Mushroom. This mushroom species is a great choice for home-growers as it is attractive to watch while it grows, requires little maintenance, and produces loads of edible fruit. Blue Oyster Mushroom mycelium is hardy and aggressive and ready to fruit within two weeks. It grows well on any wood-based substrate – which is another reason to consider getting a blue oyster spawn to grow at home (you can