Organic Black King Mushroom Grow Kit Fruiting Block

Bring hearty, restaurant-worthy mushrooms to your indoor growing space. The Organic Black King Mushroom Grow Kit Fruiting Block contains a fully colonized substrate block prepared for fruiting, making it an accessible way for intermediate growers to cultivate Pleurotus spp. at home.

Black King mushrooms are a robust hybrid strain known for substantial fruit bodies and a dense, succulent texture. As they mature, expect thick stems and compact caps with a savory flavor that stands up beautifully to roasting, grilling, sautéing, and other high-heat preparations.

This Fruiting Block Kit is intended for indoor cultivation, where temperature, humidity, light, and fresh air can be monitored more closely. Place the block in a clean location with indirect light and follow the included care guidance for misting and fruiting conditions.

With proper care, the block may produce multiple flushes. The first harvest typically yields approximately 0.5–2 pounds, depending on growing conditions and the block’s performance.

Because Black King mushrooms benefit from attentive environmental management, this kit is rated Intermediate. It is a practical choice for growers ready to build on foundational experience while exploring a distinctive oyster mushroom variety.

North Spore fruiting blocks are produced with quality and cultivation reliability in mind by a mycologist-led mushroom company. Harvest when the caps are well formed and enjoy the fresh, meaty character of mushrooms grown in your own indoor setup.