Houseplants and other vibrant blooms can go a long way toward brightening your home or landscape, which is why Jobe’s Flowering Plant Food Spikes supply important nutrients at the roots where your plants need it most. Unlike typical fertilizers, Jobe’s specially formulated spikes don’t wash away when you water, making them hazard- and mess-free. Plus, no mixing or measuring is required - just insert into the soil around the plant, then apply every two months.