Grow your own mushroom kits are a block of live 'mushroom mycelium'. These kits are meant to be used indoors on your kitchen counter or a shelf. To start the kit simply cut it open and mist it daily to keep a humid environment around the kit. You can typically expect fresh gourmet mushrooms in 1 - 4 weeks from starting the kit. The kit will typically give 2 - 4 flushes of mushrooms.