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Black King mushrooms grow very well indoors. When fruited successfully, you can expect a large harvest of meaty, savory mushrooms. Black Kings prefer cooler temperatures and are susceptible to drying out if humidity is not maintained.  


Fruiting Blocks typically ship within 3-5 days, but can take up to 10 days before shipping.  If you do not use the block immediately, it can be stored in the refrigerator for several weeks before use.


You can find the complete instructions for your fruiting block here.

Black King Grow Kit

  • Remove the block from from the shipping box as soon as possible.  Follow the instructions included in the box to initiate fruiting.

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