Make sure your landscape is full of healthy plants with beautiful blooms with Jobe’s Fertilizer Spikes for Potted Plants & Hanging Baskets, 8-9-12. Convenient and easy to use, Jobe’s fertilizer spikes provide nutrition underground – where plant roots can use it. Just insert spikes around plants and the slow-release formula feeds plants for up to 8 weeks. Plus, spikes ensure that nutrients aren’t washed away like surface applied fertilizers. The specially formulated, premeasured spikes make for a fast, easy and mess-free fertilizing experience. Spikes are available in a waterproof, resealable pouch or in a blister card pack.