Jobe's 50 Pack 4-4-4 Organic All-Purpose Fertilizer Spike. It is a slow release fertilizer that provides nutrients for up to 8 weeks. Suitable for all plants, including African violet, apple, avocado, azalea, barberry, bean, blackberry, blueberry, bougainvillea, cactus, camellia, canna, canna lily, carrot, cherry, coleus, cucumbers, cypress, daffodils, dogwods, eggplants, evergreen, fern, fig, forsythia, gardenia, geraniums, gladiolus, hibiscus, holly, hyacinths, hydrangea, juniper, lemon, mango, maple, melons, orchid, palm, peach, pear, pecan, pepper, philodendrons, plum, poinsettias, potatoes, raspberry, rhododendron. Comes in a re-sealable pouch packaging.