Fruit crown is the top of the pineapple fruit.  Cut it off about an inch below the leaf cluster.  Trim away the outer fruit portion and a few of the basal leaves leaving some of the inner core.  Allow the wound moisture to dry up for a week to discourage rotting.  Plant in moist, well-drained soil with bright, indirect light.  This is the slowest method of growing a pineapple fruit and can take at least 24 months to flower but the preferred method in Hawaii.