A plant processor, comprising a cylindrical rotatable drum for receiving plant matter and having a plurality of slots, a rotatable cutting reel positioned below the rotatable drum and being rotatable in an opposite direction to the drum, the cutting reel comprising a cylindrical rod and a plurality of longitudinal cutting blades operable to cut plant material extending through the slots in the drum, a horizontal support having a top surface and a plurality of magnets recessed in the support to be flush with the top surface, and a cutting knife having ends and a cutting edge, the knife mounted on the top surface of the support and held in place by the magnets, wherein the support maintains the cutting edge of the knife in an operable position near the reel and the drum for cutting plant material that extends through the plurality of slots in the drum and a motor to rotate the reel and the drum.