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 premeasured, 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