Jobe's Fruit and Citrus Tree Fertilizer Spikes can help keep your trees in tip-top shape. Not only do you want your trees to be as robust as possible, you also want the fruits they bear to be as delicious as possible. Specially formulated for fruit, citrus and nut trees, Jobe's Fruit and Citrus Tree Fertilizer Spikes ensure that yours are well-fed. These spikes delve deeper than surface-level, continuously supplying nutrients to your trees' roots all season. Insert them around the dripline of each tree and enjoy a safe fertilizer that requires no mixing, measuring or mess.