Keeping your ferns and palms healthy and fertilized is easier than ever with Jobe's fern and palm plant food spikes. Jobe's spikes provide a continuous supply of important nutrients right at the roots, where plants need it most. Simply insert the pre-measured, specially formulated spikes into the soil around your plant. Unlike other fertilizers, Jobe's fern and palm spikes eliminate mess, hazards and smells and don't wash away when you water.